Patent US3190160A successfully refreshed from Google Patents.
US3190160A
Expired / Lapsed
US
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Slug shedder
Assignee: American Drill Bushing Co
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Filing: 1963-04-03
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Granted: 1965-06-22
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Expires: 1983-04-03
Abstract
No abstract record available.
Inventors
- 👤 Robert H Armacost
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:15
CPC Classifications
B; B26; B26D; B26D7/00; B26D7/18; B26D7/1818; B21; B21D; B21D45/00; B21D45/003; Y; Y10; Y10T; Y10T83/00; Y10T83/202; Y10T83/2092; Y10T83/2096; Y10T83/2122; Y10T83/2133
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
A SLUG SHEDDING PIERCING PUNCH COMPRISING A BODY HAVING A SPRING HOUSING AT ONE END AND A PIERCING PUNCH SHAFT AT THE OTHER END TERMINATING IN A CUTTING FACE AT A FREE END THEREOF, SAID SPRING HOUSING HAVING AN AXIALLY EXTENDING CHAMBER THEREIN AND SAID SHAFT HAVING AN AXIAL BORE THERETHROUGH IN AXIAL ALIGNMENT WITH AND IN COMMUNICATION WITH SAID CHAMBER AND MEANS FORMING A SHOULDER AT THE JUNCTION OF SAID BORE WITH SAID CHAMBER, A SHEDDER PIN HAVING A SHANK SLIDABLY CONTAINED IN SAID BORE AND A HEAD FOR SAID SHANK LOCATED IN SAID CHAMBER AND MEANS ON SAID HEAD ADAPTED TO SEAT ON SAID SHOULDER WHEN THE PIN IS IN EXTENDED POSITION, A SPRING KEEPER SLIDABLY CONTAINED IN THE CHAMBER AND NORMALLY IN ENGAGEMENT WITH SAID HEAD, SPRING RETAINING MEANS LOCATED AT
Claim 2
Dependent Claim
134 words
A SLUG SHEDDING PIERCING PUNCH COMPRISING A BODY HAVING A SPRING HOUSING AT ONE END AND A PIERCING PUNCH SHAFT AT THE OTHER END TERMINATING IN A CUTTING FACE AT A FREE END THEREOF, SAID SPRING HOUSING HAVING AN AXIALLY EXTENDING CHAMBER THEREIN AND SAID SHAFT HAVING AN AXIAL BORE THERETHROUGH IN AXIAL ALIGNMENT WITH AND IN COMMUNICATION WITH SAID CHAMBER AND MEANS FORMING A SHOULDER AT THE JUNCTION OF SAID BORE WITH SAID CHAMBER, A SHEDDER PIN HAVING A SHANK SLIDABLY CONTAINED IN SAID BORE AND A HEAD FOR SAID SHANK LOCATED IN SAID CHAMBER AND MEANS ON SAID HEAD ADAPTED TO SEAT ON SAID SHOULDER WHEN THE PIN IS IN EXTENDED POSITION, A SPRING KEEPER SLIDABLY CONTAINED IN THE CHAMBER AND NORMALLY IN ENGAGEMENT WITH SAID HEAD, SPRING RETAINING MEANS LOCATED AT
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) | 1968-06-21 | 1968-12-21 | 1969-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-21 | 1972-12-21 | 1973-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-21 | 1976-12-21 | 1977-06-22 | $7700.00 | Window Closed / Lapsed |