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GB875398A - Improved methods of releasing soldered connections - Google Patents

Improved methods of releasing soldered connections

Info

Publication number
GB875398A
GB875398A GB3741258A GB3741258A GB875398A GB 875398 A GB875398 A GB 875398A GB 3741258 A GB3741258 A GB 3741258A GB 3741258 A GB3741258 A GB 3741258A GB 875398 A GB875398 A GB 875398A
Authority
GB
United Kingdom
Prior art keywords
tube
air
connection
solder
reservoir
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
GB3741258A
Inventor
Gunars Berzins
John Gover Locke
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.)
Communications Patents Ltd
Original Assignee
Communications Patents 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 Communications Patents Ltd filed Critical Communications Patents Ltd
Priority to GB3741258A priority Critical patent/GB875398A/en
Publication of GB875398A publication Critical patent/GB875398A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K1/00Soldering, e.g. brazing, or unsoldering
    • B23K1/018Unsoldering; Removal of melted solder or other residues

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Connection Of Electric Components To Printed Circuits (AREA)

Abstract

875,398. Soldering. COMMUNICATIONS PATENTS Ltd. April 14, 1960 [Jan. 20, 1959], No. 37412/58. Class 83 (4). In releasing a soldered connection the heated surface of a tool is used to melt the solder and a supply of gas under pressure is used to establish a blast of gas directed at the connection to remove sufficient solder to release or facilitate the release of the connection. The tool may comprise an electrically heated soldering iron alongside the bit of which is attached a tube connected to an air supply reservoir, supply of air through the tube being controlled by a pressbutton valve. The front end of the tube may pass through the bit. Instead of or in addition to the tube one or more passages may be provided in the bit e.g. an axial bore connected to a flexible air supply line. In a modification the tool comprises a wire loop, heated by a current, 'a pistol grip handle and a cylinder and piston operated by a lever on the handle to function as a pump to deliver air to a reservoir in the handle. A tube associated with the loop communicates with the reservoir through a valve opened by a trigger and the operation includes operating the lever on the handle several times to charge the reservoir, heating the loop and applying it to melt the solder and actuating the trigger to direct a blast of air through the tube. A number of blasts for each operation of a lever may be provided. An annular array of steel bristles to collect solder particles is arranged about a hole in a member through which the soldering iron may pass to unsolder a connection on a chassis or printed circuit board. A tangled mass of fibres may be employed or a tank containing water with a hole over which the connection is located may be used to collect solder particles. A continuous flow of air may be used and the air may be supplied from a line, a cylinder or a foot ot motor operated pump. According to the Provisional Specification a vacuum may be created adjacent the connection to draw solder away therefrom.
GB3741258A 1959-01-20 1959-01-20 Improved methods of releasing soldered connections Expired GB875398A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3741258A GB875398A (en) 1959-01-20 1959-01-20 Improved methods of releasing soldered connections

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3741258A GB875398A (en) 1959-01-20 1959-01-20 Improved methods of releasing soldered connections

Publications (1)

Publication Number Publication Date
GB875398A true GB875398A (en) 1961-08-16

Family

ID=10396291

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3741258A Expired GB875398A (en) 1959-01-20 1959-01-20 Improved methods of releasing soldered connections

Country Status (1)

Country Link
GB (1) GB875398A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3172382A (en) * 1962-12-20 1965-03-09 Boeing Co Desolder tool
US3239124A (en) * 1963-10-04 1966-03-08 Quentin R Hathcock Pneumatic desoldering tip
US3443733A (en) * 1967-01-11 1969-05-13 Alexander A Parente Soldering and desoldering tool
EP0102426A1 (en) * 1982-09-03 1984-03-14 Ernst Spirig Solder removing device
US4602733A (en) * 1982-12-17 1986-07-29 International Business Machines Corporation Desoldering apparatus and method
US4805828A (en) * 1987-01-23 1989-02-21 Rockwell International Corporation Thermally durable surface mounted device printed wiring assemblies and apparatus and method for manufacture and repair

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3172382A (en) * 1962-12-20 1965-03-09 Boeing Co Desolder tool
US3239124A (en) * 1963-10-04 1966-03-08 Quentin R Hathcock Pneumatic desoldering tip
US3443733A (en) * 1967-01-11 1969-05-13 Alexander A Parente Soldering and desoldering tool
EP0102426A1 (en) * 1982-09-03 1984-03-14 Ernst Spirig Solder removing device
US4602733A (en) * 1982-12-17 1986-07-29 International Business Machines Corporation Desoldering apparatus and method
US4805828A (en) * 1987-01-23 1989-02-21 Rockwell International Corporation Thermally durable surface mounted device printed wiring assemblies and apparatus and method for manufacture and repair

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