US3788537A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hand-loaded pin chuck
Assignee: MECHANICAL APPLIC Inc
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Filing: 1972-07-31
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Granted: 1974-01-29
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Expires: 1992-07-31
Abstract
Abstract A pin chuck comprising a spring pin holder and punch for inserting the spring pin in a cooperating hole in a workpiece. The construction of the tool permits ready substitution of different sized pin holders and punches whereby a range of pin sizes may be inserted through the use of the same basic tool. The tool includes means for accurately controlling the extent of the pin insertion into the hole.
Inventors
- 👤 W Fox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:43
CPC Classifications
B; B25; B25C; B25C1/00; B25C1/02; B25B; B25B27/00; B25B27/02; B25B27/04
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
175 words
Means for inserting a spring pin in a hole of cooperating size in a workpiece, said means comprising: a tubular supporting body; a pin punch fixed to a punch holder removably secured within said body and paralleling the long dimension of said body; a nose piece slidably located in the lower end of said body and having a bore therethrough in which is located the lower end of said punch; a compressible spring within said body, said spring fixed at its upper end to said removable punch holder and attached at its lower end to said nose piece thereby to normally hold said nose piece in a position in which the lower end of said punch is above the lower end of said nose piece bore and the lower end of said nose piece is below the lower end of said body; means associated with the lower end of said nose piece bore for holding a spring pin therein; and, stop means for limiting inward movement of said nose piece with respect to said body.
Claim 2
Dependent Claim
175 words
Means for inserting a spring pin in a hole of cooperating size in a workpiece, said means comprising: a tubular supporting body; a pin punch fixed to a punch holder removably secured within said body and paralleling the long dimension of said body; a nose piece slidably located in the lower end of said body and having a bore therethrough in which is located the lower end of said punch; a compressible spring within said body, said spring fixed at its upper end to said removable punch holder and attached at its lower end to said nose piece thereby to normally hold said nose piece in a position in which the lower end of said punch is above the lower end of said nose piece bore and the lower end of said nose piece is below the lower end of said body; means associated with the lower end of said nose piece bore for holding a spring pin therein; and, stop means for limiting inward movement of said nose piece with respect to said body.
Claim 3
Dependent Claim
26 words
The constructiOn set forth in claim 1 and a shank attached to said tubular supporting body adapted to connect said body to axial force applying means.
Claim 4
Dependent Claim
23 words
The construction set forth in claim 1, said punch holder, punch, spring and nose piece being removable as a unit from said body.
Claim 5
Dependent Claim
42 words
The construction set forth in claim 1, said stop means arranged to limit movement of said nose piece inwardly of said body to a position in which the lower end of said nose piece is below the lower end of said body.
Claim 6
Dependent Claim
38 words
The construction set forth in claim 1, said punch holder having a depression in its outer surface and removable means extending through said body into said depression to hold said punch holder said removable relation to said body.
Claim 7
Dependent Claim
26 words
The construction set forth in claim 1, said stop means comprising the lower end of said punch holder and the upper end of said nose piece.
Claim 8
Dependent Claim
43 words
The construction set forth in claim 1, said means for holding the spring pin in the nose piece comprising a slot through the wall of said nose piece intersecting said bore and resilient means extending into said slot to engage said spring pin.
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) | 1977-01-28 | 1977-07-30 | 1978-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-28 | 1981-07-30 | 1982-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-28 | 1985-07-30 | 1986-01-29 | $7700.00 | Window Closed / Lapsed |