Patent US4756078A successfully refreshed from Google Patents.
US4756078A
Expired / Lapsed
US
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Integrated circuit package extraction tool
Assignee: Microdot Inc
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Filing: 1987-05-04
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Granted: 1988-07-12
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Expires: 2007-05-04
Abstract
Abstract A tool to extract an integrated circuit package from a socket with minimal damage to package or socket.
Inventors
- 👤 Michael J. Dougherty
- 👤 Robert E. MacMullin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:44
CPC Classifications
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: 7
Claim 1
Independent Claim
125 words
A tool for the extraction of a coplanar array of integrated circuit pins from a parallel coplanar array of pin sockets comprising a pair of rotatable cams, each of said cams having lobe surfaces engageable with said pins and socket arrays, respectfully; means for positioning the lobe surfaces of said cams between said pin array and said socket array; and means for rotating said cams by simultaneously displacing the axis of rotation of each of said cams towards said socket array in the direction normal to the plane of engagement between said pin array and said socket array, whereby one of the lobe surfaces is pivoted against said socket array to produce said rotation, and whereby said pin array is separated from said socket array.
Claim 2
Dependent Claim
125 words
A tool for the extraction of a coplanar array of integrated circuit pins from a parallel coplanar array of pin sockets comprising a pair of rotatable cams, each of said cams having lobe surfaces engageable with said pins and socket arrays, respectfully; means for positioning the lobe surfaces of said cams between said pin array and said socket array; and means for rotating said cams by simultaneously displacing the axis of rotation of each of said cams towards said socket array in the direction normal to the plane of engagement between said pin array and said socket array, whereby one of the lobe surfaces is pivoted against said socket array to produce said rotation, and whereby said pin array is separated from said socket array.
Claim 3
Dependent Claim
86 words
The tool of claim 1 wherein said means for rotating said cams for simultaneously displacing the axis of rotation of each of said cams comprises a pair of first supporting members to which said cams are rotatably mounted; a pair of second supporting members; and means for moving said first members relative to said second members to effect clamping of said socket array between one of the lobe surfaces of said cams and said second members, whereby zero net force is applied to said socket array.
Claim 4
Dependent Claim
52 words
The tool of claim 2 wherein said means for moving said first members relative to said second members comprises a first and second lever pivoted about a common axis, whereby movement of said first lever relative to said second lever produces like movement of said first members relative to said second members.
Claim 5
Dependent Claim
47 words
The tool of claim 3 including force amplification means, whereby movement of said first lever relative to said second lever produces a lessor movement of said first members relative to said second members, whereby said lesser movement is of greater force amplitude than said first lever movement.
Claim 6
Dependent Claim
17 words
The tool of claim 1 wherein the lobe surfaces are defined by a radially outwardly extending lobe.
Claim 7
Dependent Claim
29 words
The tool of claim 1 wherein the lobe surfaces are defined by a lobe extending tangentially from a point on said cam radially offset from the rotational axis thereof.
References Cited (Backward Citations)
US4152827A
Cited
US4519130A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-07-12 | 1992-01-11 | 1992-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-07-12 | 1996-01-11 | 1996-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-07-12 | 2000-01-11 | 2000-07-12 | $7700.00 | Window Closed / Lapsed |