EE05845B1 - Straight pipe - Google Patents

Abstract

The invention relates to a straight pipe that has an axial axis that is comprised of, a cap that comprises at least one aeration aperture, a cylindrical combustion chamber, an airway chamber formed by the cylindrical pipe tube containing a Calabash chamber, as well as a mouthpiece at the end of the pipe body, whereas the aeration aperture of the cap, the combustion chamber, the airway chamber and the aeration aperture of the mouthpiece are aligned with the axial axis of the pipe. The novelty lies in that the cap has an internal surface, the cylindrical combustion chamber and the Calabash chamber have been formed as a single structural element which has been inserted into the pipe tube so that the axial length h1 of the contact surface of the structural element and the pipe tube is h1 > 0,15H, where H is the length of the pipe. The pipe tube has been inserted into the pipe body so that the contact surface of the pipe tube and the pipe body is formed along the entire length of the pipe body, and the pipe body has been inserted into the cap so that the cylindrical inner surface of the cap rests on the cylindrical outer surface of the pipe body inserted into the cap, whereas the length h2 of the contact surface is h2 > 0,20H. A replaceable active coal filter is positioned in the Calabash chamber.

Description

 Technical field

The invention belongs to the field of smoking articles and relates to an environmentally friendly straight pipe, preferably in the shape of a cigar.

State of the art

Commonly known smoking devices are cigarettes, which are pre-made and can also be rolled by hand. In the case of pre-made cigarettes, you cannot choose the amount of tobacco you consume, the filter is harmful to the environment, your fingers start to smell, you have to smoke paper, the glowing stub can cause other dry materials to ignite. The disadvantages of hand-rolled cigarettes are that the filter is harmful to the environment, rolling a cigarette by hand is an additional activity and is inconvenient, you have to inhale the paper smoke when smoking, they are dangerous because the glowing stub can cause other dry materials to ignite.

A well-known smoking tool is also the traditional pipe, although traditional pipe tobacco is significantly stronger than cigarette tobacco, the pipe has an uncomfortable and structurally impractical shape, the pipe starts to smell easily during use and is harmful to health, as most pipes do not have a filter or the option of a replaceable filter.

Another well-known smoking device is the electronic cigarette, which is particularly harmful to the environment because it consists of a short-lived lithium-ion battery (lifespan 2-3 years) and a heating element (lifespan 2-3 weeks). The user also faces unknown health risks caused by inhaling metals released into the liquid from the heating element.

Document US1541891, J.F. Becker, 1925 discloses a cigar and cigarette holder comprising an extendable body consisting of an inner and outer cylinder and a mouthpiece screwed to the inner cylinder. The invention aims to prevent ash from falling onto surrounding objects and to adapt the cigar holder to cigars of different sizes. This cigar holder does not have a filter chamber, smoke chamber and filter, the mouthpiece is short and the combustion chamber is the length of the cigar.

From document US2017251720 A1, Swift Mfg & Eng Inc, A24F1/28, 2017, a smoking pipe is known, which includes a shaft, at the first end of which a bowl is detachably attached, and

a mouthpiece at the other end, with the pipe elements containing a common central axis. The said pipe lacks a filter chamber, the screw-on combustion chamber complicates the construction, and the metal parts make the pipe heavy.

From document US20170208860 A1, Daniel M. Evans II, A24F 1/32, 2017, a smoking pipe is known, which includes a shaft, a first end of which is detachably attached to a bowl, and a second end of which is a mouthpiece, the pipe elements including a common central axis, wherein the inner diameters of the bowl, shaft and mouthpiece are relatively the same. The screw-on bowl with the combustion chamber and the screw-on mouthpiece make the construction complex, and the metal parts make the pipe heavy.

The closest technical solution to the present invention is a straight cigar-shaped pipe known from document US 9848638 B2, Christopher D. Morgan, A24F 1/28, 2017. The pipe, having a longitudinal axis, includes a distal end and a user-side proximal end, a removable cap at the distal end having at least one opening, a cylindrical combustion chamber, a cylindrical vent tube forming a vent channel, including a Calabash chamber configured to reduce the thermal energy of the smoke by increasing the volume of smoke exiting the combustion chamber, reducing the temperature of the smoke and condensing the moisture in the smoke on the walls of the vent channel, and a mouthpiece at the proximal end of the pipe tail, wherein the vent hole of the cap, the combustion chamber, the vent channel and the vent hole of the mouthpiece are aligned with the longitudinal axis of the pipe. Although this pipe is healthier and more user-friendly due to the reduction in the heat of the smoke, it is relatively difficult to clean, as only the bowl and mouthpiece can be removed from the pipe for maintenance.

The essence of the invention

The aim of the present invention is to produce a straight pipe made of natural materials that eliminates the disadvantages of known solutions, being compact, detachable, allowing easy filter replacement, and being durable and easy to maintain.

The stated problem is solved by a straight pipe having a longitudinal axis and comprising a distal end and a user-side proximal end, a throat at the distal end having at least one vent, a cylindrical combustion chamber, a pipe tube forming a vent channel, comprising a Calabash chamber configured to reduce the thermal energy of the smoke by increasing the volume of smoke exiting the combustion chamber, to reduce the temperature of the smoke and to condense the moisture in the smoke in the vent channel.

walls, and a mouthpiece at the proximal end of the pipe tail, wherein the cap vent, combustion chamber, vent channel and mouthpiece vent are aligned with the longitudinal axis of the pipe, the cap has an inner surface on the proximal end side, the pipe tail has a cylindrical outer surface at the distal end, and the cylindrical combustion chamber and the Calabash chamber are formed as one structural element - a combustion and filter chamber housing, which is inserted into the pipe tube from the distal end of the pipe so that the axial length h1 of the contact surface of the structural element and the pipe tube is: h1 ≥ 0.15H, where H is the length of the pipe, the pipe tube is inserted into the pipe tail from the distal end of the pipe so that the contact surface of the pipe tube and the pipe tail is formed over the entire length of the pipe tail, and the tubular tail of the pipe is inserted into the cap from the proximal end of the pipe so that the cylindrical inner surface of the cap is supported on the cylindrical outer surface of the pipe tail that is inserted into the cap, wherein The contact surface length h2 is: h2 ≥ 0.20H, where H is the length of the pipe. A ring is placed around the proximal end of the cap to prevent the cap from cracking due to thermal expansion and to protect the cap.

The connections between the elements are made as a tension, where the connections between the elements are made rigid, but with the application of a light force, allowing rotation and disassembly. Due to the extent of the contact surfaces between the elements of the barrel, the movement of the elements between them is prevented by a friction force that exceeds the acceleration force and gravity caused by handling the elements, but not the intentional force that the user can apply to separate the elements of the barrel from each other. The larger the contact surface between the elements, the greater the friction force preventing the movement of the elements between them. The parts of the barrel are assembled without mechanical locks and threads.

The innovative cap protects the user from external soot contamination of the combustion chamber and from the heat of the combustion chamber after using the pipe. The hole in the center of the distal end of the cap allows the pipe to be naturally ventilated and the pipe will not smell like tobacco ash. The design of the combustion chamber and filter chamber allows the pipe to cool in the first third of the total length of the pipe. The combustion chamber and filter chamber are separated by a cooling partition, in the middle of which there is a smaller opening connecting the combustion chamber and the filter chamber.

Preferably, a replaceable filter that is 100% environmentally friendly, such as an activated carbon filter or a cylindrical filter based on other technology, is placed in the Calabash chamber or filter chamber.

Preferably, the cap has an outer surface with a gentle curvature along its entire length.

The pipe cap is a wooden cylinder open on both sides, with an opening at the end facing the combustion chamber of the pipe that corresponds to the diameter of the distal end of the pipe tail. At the other, outer end of the pipe, the cap has a vent hole the same size as the pipe combustion chamber passage hole and the pipe tube opening. The outer surface of the pipe cap facing the combustion chamber is covered by a ring that protects the cap from cracking due to thermal expansion. On the vent side of the cap, part of the inner surface of the cap is thicker than the inner surface of the cap, which gives the cap a stronger structure and protects the pipe from possible breakage if it is dropped. The cap is fixed in place by the friction force between the outer surface of the wooden tail of the pipe and the inner wall of the cap.

The combustion chamber and filter chamber of the pipe are a three-piece cylinder consisting of 2 cylinders of different sizes and a cooling wall with an air hole between them. The depth of the combustion chamber is such that it would be convenient to fill it with organic material intended for burning, without having to compress/roll the organic material to fill the chamber or tap the tail of the pipe to fill the deeper part of the combustion chamber of the pipe with organic material. It is possible to attach additional cylinders to the inner walls of the clean combustion chamber of the pipe with tension to change the size and characteristics of the combustion chamber. The depth of the filter chamber is slightly less than the length of the filter to allow the user to change the filter manually, without additional tools. The combustion chamber and filter chamber of the pipe are attached to the filter chamber side of the pipe into the filter chamber housing, which is the thicker part of the pipe tube.

The filter chamber housing with the structural reinforcing pipe is a two-part cylinder, open on both sides. The filter chamber housing part has the appropriate diameter and depth to accommodate the filter chamber in its full volume. From the end of the filter depth, the diameter of the cylinder narrows and the further part is the structural reinforcing pipe. The diameter of the structural reinforcing pipe is equal to the diameter of the air hole between the combustion chamber and the filter chamber of the pipe and the air hole of the cap. The filter chamber housing with the structural reinforcing pipe is fixed to the tail of the pipe with a tensioner.

The tail of the pipe with the mouthpiece is a cylinder that tapers to an oval at one end, which covers the entire length of the pipe's filter chamber along with the pipe's structural reinforcing tube. The tail of the pipe covers the entire length of the pipe's structural reinforcing tube, and the tail part that extends beyond the pipe's structural reinforcing tube is the pipe's mouthpiece.

List of illustrations

Figure 1 shows a cross-section of the pipe from the side.

Figure 2 shows a cross-section of the pipe from below, i.e. rotated 90° relative to the longitudinal axis in relation to Figure 1.

Figure 3 shows a cross-section of the cap.

Figure 4 shows a cross-section of the combustion chamber and filter chamber housing of the pipe.

Figure 5 shows a cross-section of a pipe tube.

Figure 6 shows a cross-section of a pipe tail.

Detailed description of the invention

The first structural element of the pipe is a cap 1, the round outer surface of which is gently curved throughout the entire length of the cap, but inside it is a cylinder open on both sides with three openings of different diameters, the opening with the smallest diameter at the end furthest from the center in relation to the horizontal section is the cap ventilation opening 2, and at the end closest to the center there is a ring 3, which protects the cap from thermal expansion. The combustion chamber 4 is located in the second largest internal opening of the cap 1 and ends where the combustion chamber air opening 6 between the combustion and filter chamber housing 5 begins. The third, largest opening of the cap 1 runs along the longitudinal extent of the filter chamber 7 of the pipe, it contains the pipe tube 8 fixing the combustion and filter chamber housing 5, and in the third opening the cap 1 is fixed to the pipe tail 9 and the mouthpiece 11 rigidly, but easily detachable due to the frictional forces caused by tension. The diameter of the ventilation channel 10 of the pipe tube 8 is the same as the diameter of the ventilation opening 2 of the cap and the diameter of the air opening 6 between the combustion chamber and the filter chamber of the pipe.

The second structural element of the pipe is the combustion chamber and filter chamber housing 5, which is a cylinder open on both sides with three openings of different diameters on the inside, and at the end of the cap 1 there is the combustion chamber 4, i.e. the opening with the largest diameter. The combustion chamber 4 and the filter chamber 7 are connected by the combustion chamber air opening 6, which is the opening with the smallest diameter in the combustion and filter chamber housing 5. The outer surface of the combustion and filter chamber housing 5 is similarly half-open to the cap 1 in the area of the combustion chamber 4, the combustion chamber

with the largest outer diameter in the area of the air opening 6 and the smallest outer diameter in the area of the filter chamber 7.

The outer wall of the filter chamber 7 fixes the combustion chamber and the filter chamber housing 5 rigidly, but easily removable, due to frictional forces caused by tension in the pipe tube 8 reinforcing the arrangement of the filter chamber 7.

The third structural element of the pipe is the pipe tube 8, which strengthens the structure, which is a cylinder open on both sides with two openings of different diameters, into the opening with a larger inner diameter of which the part of the combustion and filter chamber housing 5 on the filter chamber 7 side is inserted. The smaller opening is the ventilation channel 10 of the pipe tube 8, which begins at the narrowing of the pipe tube 8 on the part of the combustion and filter chamber housing 5 on the filter chamber 7 side. The pipe tube 8 supports the pipe tail 9 and the mouthpiece 11 throughout its entire length. The pipe tube 8 is rigidly and irremovably fixed to the pipe tail 9 and the mouthpiece 11 due to the frictional forces caused by tension.

The fourth structural element of the pipe is the pipe tail 9, the outer surface of which changes from the round joint of the cap 1 with the ring 3 to a flat ellipsoidal mouthpiece 11. The pipe tail 9 and the mouthpiece 11 are cylinders open on both sides with two openings of different internal diameters, the inner surface of which rigidly and irremovably fixes the pipe tube 8 reinforcing the structure of the filter chamber, and the outer surface of which on the side of the cap 1 fixes the pipe rigidly, but easily detachable due to the frictional forces caused by the tension of the inner surface 12 of the cap 1.

The pipe is assembled as follows. The combustion and filter chamber housing 5 is pressed into the pipe tube 8. The pipe tube 8 is pressed into the pipe tail 9 and the cap 1 is pressed onto the pipe tail 9. The pipe is assembled. The pipe is disassembled in the reverse order, with the pipe tube 8 remaining inside the pipe tail 9.

Before the final processing, the pipe is coated with a transparent, fast or slow crystallizing glue or liquid to protect the pipe from aging and prevent the pipe from cracking due to thermal expansion or being dropped.

The minimum length of the pipe is 40 mm, the maximum length is 200 mm. The minimum diameter of the pipe is 7 mm and the maximum diameter is 30 mm. The minimum diameter of the combustion chamber is 2 mm and the maximum diameter is 20 mm, the minimum depth is 3 mm and the maximum depth is 30 mm. The minimum diameter of the opening between the combustion chamber and the filter chamber is 1 mm and the maximum diameter is 8 mm. The combustion chamber and the filter chamber

The minimum thickness of the thermal wall between the two is 1 mm and the maximum thickness is 10 mm. The minimum diameter of the thermal wall is 3 mm and the maximum is 10 mm.

List of symbols

1 cap

2 cap vents

3 rings

4 combustion chambers

5 combustion and filter chamber housing

6 combustion chamber air vents

7 Calabash chamber or filter chamber

8 pipe pipes

9 pipe tails

10 ventilation duct

11 mouthpiece

12 inner surface of the cap

13 cylindrical outer surface

H pipe length

h1 contact area

h2 contact area

Claims (4)

1. A straight pipe having a longitudinal axis, comprising: a distal end and a proximal end on the user side, a cap (1) at the distal end having at least one vent (2), a cylindrical combustion chamber (4), a pipe tube (8) forming a vent channel (10) comprising a Calabash chamber configured to reduce the thermal energy of the smoke by increasing the volume of smoke exiting the combustion chamber (4), to reduce the temperature of the smoke and to condense the moisture in the smoke onto the walls of the vent channel (10), and a mouthpiece (11) at the proximal end of the pipe tail (9), wherein the vent (2) of the cap (1), the cylindrical combustion chamber (4), the vent channel (10) and the mouthpiece vent are aligned with the longitudinal axis of the pipe, and the pipe is cigar-shaped, characterized in that the cap (1) has an inner surface (12) facing the proximal end, the pipe tail (9) has a cylindrical outer surface at the distal end (13), the cylindrical combustion chamber (4) and the Calabash chamber (7) are formed as one structural element - a combustion and filter chamber housing (5), the combustion and filter chamber housing (5) is inserted into the pipe tube (8) from the distal end of the pipe so that the axial length h1 of the contact surface of the combustion and filter chamber housing (5) and the pipe tube (8) is: h1 > 0.15H, where H is the length of the pipe, the pipe tube (8) is inserted into the pipe tail (9) from the distal end of the pipe, so that the contact surface of the pipe tube (8) and the pipe tail (9) is formed over the entire length of the pipe tail, the pipe tail (9) is inserted into the cap (1) from the proximal end of the pipe, so that the inner surface (12) of the cap (1) is supported on the cylindrical outer surface (13) of the pipe tail (9) inserted into the cap, whereby the length H2 of the contact surface is: h2 > 0.20H, where H is the length of the pipe, a ring (3) is placed around the proximal end of the cap (1). 2. A straight pipe according to claim 1, characterized in that a replaceable filter is arranged in the Calabash chamber (7). 3. A straight pipe according to claim 2, characterized in that the replaceable filter is an activated carbon filter. 4. A straight pipe according to any preceding claim, characterized in that the cap (1) has an outer surface with a gentle curvature along its entire length.