US1789082A - Selective valve for radiators - Google Patents

Description

Jan. 13, 1931. R. o. PFEIFFER SELECTIVE VALVE FOR RADIATORS Filed March 1, 1930 Patented Jan. 13, 1931 UNETE,

RICHARD o. PF-E-IFFER, or NEWARK, new JERSEY SELECTIVE VALVE FOR RADIATORS Application filed March 1, 1930. Serial No. 432,323.

My invention relates to improvements in valves such as are used on steam heat radiators, to enable the rapid'discharge of cold air from the radiatorto permit the filling of the radiator with steam.

lVhile the commonly used radiator valve compensates for gradual changes in temperature, it does not, at all times, enable the rapid discharge of cold air from cold radiators, to quickly heat the radiators, and it is common practice, therefore, to remove the valve screw, or the entire valve, so that there will be no obstruction to the rapid escape of the cold air.

However, after all the cold air has escaped, steam will also escape in large quantities, resulting in scalding the hands in replacing the valve or valve screw, and if one forgets to replace the valve or valve screw, the escaping steam quite frequently damages the walls and furniture adjacent the radiator.

It is therefore an object of my invention to provide a radiator valve having thermostatically controlled means for permitting the rapid escape of the cold air from the radiator and to automatically shut off the escape of steam when steam is up.

It is to be understood that my improved valve is not to be substituted for the valve now so extensively used on radiators, but is to be employed in conjunction therewith, and it is so designed that the old valve, after it has been removed from the radiator, can be screwed into the casing of my improved valve, the casing in turn being screwed back into the radiator to take the place of the old valve.

These and other advantageous objects, which will later appear, are accomplished by the simple and practical construction and arrangement of parts hereinafter described and exhibited in the accompanying drawings, forming part hereof, and in which:

Figure 1 represents a fragmentary side elevational view of the end coils of a radiator to which the ordinary valve is secured,

Figure 2 represents a similar view of the radiator but shows my improved device secured thereto in combination with the ordinary valve,

to the radiator, the

Figure 3 represents an end elevational view of my improved device, partlyin section, illustrating the thermostatically controlled valve suspended by' the, thermostatic element, and r V Figure 4 represents a top plan view ofmy improved device, partly in section,secured radiator being represented fragmentarily. H V

My improved device consists essentially of four parts, namely, a casing 1, a valve 4, a thermostatic element 7 and a valve guiding bracket 10. v v

In its preferred form, the casing'l is providecl with a cross-shaped air passage 2-(se,e ig. which communicates with a valve seat 3, the latter being preferably in the form of a tapered aperture, the lower end of thevalve 4 being preferably-shaped to correspond with the valveseat 3, with which it cooperates to form a pressure-tight closure.

Extending from the. valve 4 is a conical head 5, the underside '9; of which is designed to receive the free end 6 of the thermostatic elementor spring i the other end of said element being secured to the casing by any suitable means, as, for instance, by screws 8. Extending from said conical head 5 is a reduced extension 16providedwith a'knob 17, the reduced extension being. designed to engage with and be guided by a suitable aper ture 18 in the valve guiding bracket 10, which may be of anyfdesirecl or convenient shape and secured to the casing by screws 11 or the like. l/Vhen the thermostatic element is cold, its free end 6 extends inwardly, in position to engage the recess 9. ofthe valve head 5. J T

\Vhen it is desired to quickly h'eatjthe cold radiator, the co'ldairis' allowed to escape throughthe aperture 3iby raising the valve 4 by its knob 17 until the freeen'd' 6 of the thermostatic element 7, riding along the cof nical head 5 of the valve 4, snapsinto engagement with the underside 9 o f the head 5, thereby supporting thef'va'lve't clear of its seat 3. hen thethermostatic' element 7 expands, on being heated by the heat of the radiator and easing l, and steam that escapes through aperture 3, it withdraws from the underside of the valve head 5, so that the valve will automatically drop into its seat 3 and prevent the escape of steam.

To repeat the operation of the valve 4, the valve is simply'raised to the position where the free end 6 of the spring 7 will engage the underside 9 of the valve 5, as outlined.

Ininstalling my device, the ordinary-radiator valve 15 is removed from the radiator and the nipple 13 of my improved device is threaded into :'the threaded radiator opening 14 from which the ordinary valve 15 has been removed, anclethereafter .valve 15 is secured to the casing 1 of my improved device so as to communicate with the air .passage z, so that the valve 15 will function g in the casingl asjit' functioned when secured di e t y 'i radiatqr.

By simply removing the screw 12 which is threaded into the air passage 2, on the inletside of the valve, said passage may be readily cleaned from time to time. In the preferred form of ;my invention the ordinary radiator valve '15 is usedin combination with the thermostatically controlled valve as set forth.

The user may, in a heatingsystem wherein the radiators are provided with my improved device, provide .for the more rapid "heating of a certain selected radiator or radiators, "by manually raising the thermoml lolithennovementcofithe valve in one clirection relatively to the air passage, and a screw in :the=casing closing said air passage on the inlet side of the valve, said screw loein-gremovahletoclean the air passage.

This specification signed this 13th day of February, 1930.

RICHARD O. 'BFEIFFER.

statically controlled valves .on onlythe selected radiator or radiators.

The deviceherein disclosed hasbeen found positive and fool-proof in operation, and, consisting of essentially few parts, e c onor ni-. cal to manufacture.

Having thus described my invention, what 1 claim as new and desire to secure by Lettel's a ent, .5

"1. In a device of the character described, a casing-provided with a valve seat and with an a passage mmu i ing wi h aid seat, a val e {and a th rmo e em t si cured to said casing adapted, when cold, to be engaged with and suspend the valve clear of t ai passage, nd, h heated, o withdraw from the valve so that the latter will drop and c os th v ve' e In a device of the character described, a casing provided with a longitudinal air pas age and with a ve t a v lv s a c mmunicating with said air passage, avalve, and a thermostatic element secured to said asing adapted, when col to e engage wi h the valve t pen the v clear of the valve ea and wh n heated, toiwithra om the valve, o th tte at er i drop and close the valve seat.

,3. In a device of the character described, a casing provided with an air passage and with a valve seat communicating with said air passage, a valve, a thermostatic element igi y s c d t o end t said sing, the other and freeend of s id. elem t b ing

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