Patent US4571824A successfully refreshed from Google Patents.
US4571824A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removal tool for terminal with compliant pins
Assignee: Nokia Bell Labs
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Filing: 1983-12-30
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Granted: 1986-02-25
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Expires: 2003-12-30
Abstract
Abstract A terminal removal tool for removing terminals from a printed circuit board, includes a pliers arrangement with special jaws to engage the terminal. Each jaw includes a housing to enclose an end of the terminal and a wedge which is positioned to engage an underside of the terminal when the pliers are closed. The end of the housing rides on the surface of the circuit board to properly position the wedges and when the pliers are closed the action of the wedges breaks the friction fit of the pins holding the terminal to the circuit board.
Inventors
- 👤 Michael L. Ingaglio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:08
CPC Classifications
B; B25; B25B; B25B7/00; B25B7/02; H; H05; H05K; H05K13/00; H05K13/04; H05K13/0486; H05K13/0491; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53274; Y10T29/53283; Y10T29/53796; Y10T29/53896; Y10T29/539
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
197 words
A tool for removing a terminal device having compliant pins which are mounted with an underside of the terminal device on a receptacle having a known thickness, the receptacle and terminal device being mounted on a printed circuit board, the tool comprising: a plier assembly having a pair of handles, a pivot mechanism and first and second jaws which move toward one another when the pair of handles is activated, the first and second jaws including: first and second wedge members, first and second housings, each housing having an end surface that rests on a surface of the printed circuit board and positions the first and second wedge members included within the first and second housings at a proper height equaling the known thickness of the receptacle, said wedges engaging an underside of the terminal device and simultaneously penetrating between the underside of the terminal device and the receptacle on which it rests, thereby, applying a vertical force relative to the surface of the printed circuit board to the underside of the terminal device, and the first and second housing fully enclosing the receptacle and the terminal device when the first and second jaws are closed together.
Claim 2
Dependent Claim
197 words
A tool for removing a terminal device having compliant pins which are mounted with an underside of the terminal device on a receptacle having a known thickness, the receptacle and terminal device being mounted on a printed circuit board, the tool comprising: a plier assembly having a pair of handles, a pivot mechanism and first and second jaws which move toward one another when the pair of handles is activated, the first and second jaws including: first and second wedge members, first and second housings, each housing having an end surface that rests on a surface of the printed circuit board and positions the first and second wedge members included within the first and second housings at a proper height equaling the known thickness of the receptacle, said wedges engaging an underside of the terminal device and simultaneously penetrating between the underside of the terminal device and the receptacle on which it rests, thereby, applying a vertical force relative to the surface of the printed circuit board to the underside of the terminal device, and the first and second housing fully enclosing the receptacle and the terminal device when the first and second jaws are closed together.
Claim 3
Dependent Claim
38 words
A tool as defined in claim 1 wherein side edges of the first and second wedge members are tapered so that a leading edge is narrower than its opposite edge secured to the first and second housing, respectively.
References Cited (Backward Citations)
US1484222A
Cited
JPS5568660A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-02-24 | 1989-08-26 | 1990-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-02-24 | 1993-08-26 | 1994-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-02-24 | 1997-08-26 | 1998-02-25 | $7700.00 | Window Closed / Lapsed |