Patent US3130638A successfully refreshed from Google Patents.
US3130638A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Projectile transfer mechanism
Assignee: Individual
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Filing: 1961-10-16
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Granted: 1964-04-28
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Expires: 1981-10-16
Abstract
No abstract record available.
Inventors
- 👤 Jr Eugene B Horton
- 👤 Bernard A Niemeier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:57
CPC Classifications
F; F41; F41A; F41A9/00; F41A9/38; F41A9/39; F41A9/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
A PROJECTILE FEED MECHANISM COMPRISING A HOUSING ATTACHED TO THE REAR END OF A GUN AND PROVIDED WITH A PROJECTILE FEED PASSAGE, A MAGAZINE CONNECTED TO SAID HOUSING AND COMMUNICATING WITH SAID FEED PASSAGE, SAID HOUSING HAVING A BORE ALIGNED WITH SAID FEED PASSAGE, A FEED PLUNGER RECIPROCABLE IN SAID FEED PASSAGE, A FIRST PISTON FIXED TO SAID PLUNGER AND SLIDABLE IN SAID BORE, MEANS TO ADMIT GAS PRESSURE TO ONE SIDE OF SAID PISTON, A SECOND PISTON CARRIED BY THE GUN AND MOVABLE IN RESPONSE TO OPERATION THEREOF, SAID HOUSING HAVING LIQUID CONTAINING PASSAGE MEANS PROVIDING COMMUNICATION BETWEEN THE OTHER SIDE OF SAID FIRST PISTON AND ONE SIDE OF SAID SECOND PISTON.
Claim 2
Dependent Claim
113 words
A PROJECTILE FEED MECHANISM COMPRISING A HOUSING ATTACHED TO THE REAR END OF A GUN AND PROVIDED WITH A PROJECTILE FEED PASSAGE, A MAGAZINE CONNECTED TO SAID HOUSING AND COMMUNICATING WITH SAID FEED PASSAGE, SAID HOUSING HAVING A BORE ALIGNED WITH SAID FEED PASSAGE, A FEED PLUNGER RECIPROCABLE IN SAID FEED PASSAGE, A FIRST PISTON FIXED TO SAID PLUNGER AND SLIDABLE IN SAID BORE, MEANS TO ADMIT GAS PRESSURE TO ONE SIDE OF SAID PISTON, A SECOND PISTON CARRIED BY THE GUN AND MOVABLE IN RESPONSE TO OPERATION THEREOF, SAID HOUSING HAVING LIQUID CONTAINING PASSAGE MEANS PROVIDING COMMUNICATION BETWEEN THE OTHER SIDE OF SAID FIRST PISTON AND ONE SIDE OF SAID SECOND PISTON.
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) | 1967-04-28 | 1967-10-28 | 1968-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-28 | 1971-10-28 | 1972-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-28 | 1975-10-28 | 1976-04-28 | $7700.00 | Window Closed / Lapsed |