US4295258A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pin puller and inserter
Assignee: National Semiconductor Corp
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Filing: 1980-02-21
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Granted: 1981-10-20
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Expires: 2000-02-21
Abstract
Abstract A pin pulling and inserting block has a channel therein in the shape of a rectangular parallelepiped which opens on one end of the block and is large enough to admit the head of a retaining pin on an integrated circuit package shipping rail. There is a tapered ramp within the channel which progressively narrows the depth of the channel from a dimension which is larger than the depth of the pinhead to a dimension that will snugly hold the pinhead. A slot extends through the block from the channel opening and opens into the channel. The slot is wide enough to admit the shank of a pin whose head is admitted into the channel. There is a rounded surface on the end of the block opposite the channel opening which acts as a fulcrum for prying the pin out of the shipping rail. The pin remains snugly held in the channel after it is removed from the rail and can be easily inserted back into the rail by simply pressing the rail against the exposed end of the pin.
Inventors
- 👤 Eric J. Penn
- 👤 Derylle L. Teegarden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:25
CPC Classifications
B; B25; B25B; B25B27/00; B25B27/02; B25B27/08; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53274; Y10T29/53991
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
222 words
A pin puller and inserter for pulling pins from an integrated circuit package shipping rail and inserting pins thereinto, comprising: a elongated body member having a top and a bottom; an elongated channel formed in said body member said channel having an outwardly flared opening at one end of said body member and being dimensioned to admit the head of a pin from an integrated circuit package shipping rail through said opening; a tapered ramp in said channel which progressively narrows the depth of the channel from a dimension which is larger than the depth of the head of a pin to a dimension that will snugly hold the pinhead in place; a slot in said body member extending from said channel opening along said channel and communicating into said channel, said slot being dimensioned to admit the shank of said pin when the head thereof is admitted into said channel; a rounded fulcrum surface on said body member on the end thereof opposing said channel opening, said rounded surface serving as a fulcrum for engagement by a package, for pulling a pin whose head is in said channel; and mounting means on the bottom of said body member for mounting said body member in a fixed position at a convenient height and angle for use in removing pins from a package.
Claim 2
Dependent Claim
222 words
A pin puller and inserter for pulling pins from an integrated circuit package shipping rail and inserting pins thereinto, comprising: a elongated body member having a top and a bottom; an elongated channel formed in said body member said channel having an outwardly flared opening at one end of said body member and being dimensioned to admit the head of a pin from an integrated circuit package shipping rail through said opening; a tapered ramp in said channel which progressively narrows the depth of the channel from a dimension which is larger than the depth of the head of a pin to a dimension that will snugly hold the pinhead in place; a slot in said body member extending from said channel opening along said channel and communicating into said channel, said slot being dimensioned to admit the shank of said pin when the head thereof is admitted into said channel; a rounded fulcrum surface on said body member on the end thereof opposing said channel opening, said rounded surface serving as a fulcrum for engagement by a package, for pulling a pin whose head is in said channel; and mounting means on the bottom of said body member for mounting said body member in a fixed position at a convenient height and angle for use in removing pins from a package.
Claim 3
Dependent Claim
43 words
The pin puller and inserter defined in claim 1 wherein the surface where said channel opening and said slot are adjacent to each other is tapered to form a sharp edge perpendicular to said slot to expedite inserting the pinhead into said channel.
Claim 4
Dependent Claim
53 words
The pin puller and inserter defined in claim 1 or 2, wherein said body member is made of an upper portion and a lower portion, said upper portion being detachably secured to said lower portion and said ramp being formed on said lower portion and said channel being formed in said upper portion.
Claim 5
Dependent Claim
23 words
The pin puller and inserter defined in claim 3 wherein said rounded fulcrum surface is on the upper portion of said body member.
Claim 6
Dependent Claim
44 words
The pin puller of claim 3 wherein said mounting means is on said lower portion and is adapted to mount said body member with said channel opening, extending at an angle upward from the horizontal, and said fulcrum is positioned lower than said opening.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-10-19 | 1985-04-20 | 1985-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-10-19 | 1989-04-20 | 1989-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-10-19 | 1993-04-20 | 1993-10-20 | $7700.00 | Window Closed / Lapsed |