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GB1275263A - Electrically heated gas guns - Google Patents

Electrically heated gas guns

Info

Publication number
GB1275263A
GB1275263A GB4017768A GB4017768A GB1275263A GB 1275263 A GB1275263 A GB 1275263A GB 4017768 A GB4017768 A GB 4017768A GB 4017768 A GB4017768 A GB 4017768A GB 1275263 A GB1275263 A GB 1275263A
Authority
GB
United Kingdom
Prior art keywords
layer
fireclay
conduit
asbestos
gas
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB4017768A
Inventor
Ronald Cory Berlyn
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZF International UK Ltd
Original Assignee
Lucas Industries Ltd
Joseph Lucas Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lucas Industries Ltd, Joseph Lucas Industries Ltd filed Critical Lucas Industries Ltd
Priority to GB4017768A priority Critical patent/GB1275263A/en
Priority to FR6928335A priority patent/FR2016167A1/fr
Publication of GB1275263A publication Critical patent/GB1275263A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/40—Heating elements having the shape of rods or tubes
    • H05B3/42—Heating elements having the shape of rods or tubes non-flexible
    • H05B3/48—Heating elements having the shape of rods or tubes non-flexible heating conductor embedded in insulating material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H3/00—Air heaters
    • F24H3/02—Air heaters with forced circulation
    • F24H3/04—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element
    • F24H3/0405—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between
    • F24H3/0423—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between hand-held air guns

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Superconductor Devices And Manufacturing Methods Thereof (AREA)

Abstract

1275263 Soldering JOSEPH LUCAS (INDUSTRIES) Ltd 23 July 1969 [22 Aug 1968] 40177/68 Heading B3R [Also in Division H5] A gas gun for use in soldering semi-conductors to printed circuits comprises a metal conduit 12 through which gas to be heated, e.g. a 90% N 2 -10% H 2 mixture, flows surrounded by a helical resistance heated element 18 embedded in a layer 17 of fireclay. A gas inlet 14 is provided at one end of conduit 12 and a jet 13 at the other end. The conduit 12 has a collar 15 at one end against which a spun glass sleeve 16 abuts. Fireclay is worked into the sleeve 16, the heating element 18 is wound on the fireclay layer so formed, and a further layer of fireclay is placed on top of the heater to form the embedding layer of insulation 17. A double layer 19 of asbestos cloth is wound over layer 17, and a stainless steel tube 21 and cover 22 are fitted to complete the assembly of the gas gun. An air gap 23 is left between the tube 21 and the asbestos layer 19. An asbestos tape (not shown) is wound around tube 21 after firing the fireclay. A thermocouple, not shown, is accommodated in a bore in conduit 12.
GB4017768A 1968-08-22 1968-08-22 Electrically heated gas guns Expired GB1275263A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB4017768A GB1275263A (en) 1968-08-22 1968-08-22 Electrically heated gas guns
FR6928335A FR2016167A1 (en) 1968-08-22 1969-08-19

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4017768A GB1275263A (en) 1968-08-22 1968-08-22 Electrically heated gas guns

Publications (1)

Publication Number Publication Date
GB1275263A true GB1275263A (en) 1972-05-24

Family

ID=10413586

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4017768A Expired GB1275263A (en) 1968-08-22 1968-08-22 Electrically heated gas guns

Country Status (2)

Country Link
FR (1) FR2016167A1 (en)
GB (1) GB1275263A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8312948D0 (en) * 1983-05-11 1983-06-15 Engineering Developments Farnb Heater

Also Published As

Publication number Publication date
FR2016167A1 (en) 1970-05-08

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee