Patent US3135327A successfully refreshed from Google Patents.
US3135327A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Telescopic bridging plug-pressure set
Assignee: Aerojet Rocketdyne Inc
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Filing: 1962-02-26
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Granted: 1964-06-02
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Expires: 1982-02-26
Abstract
No abstract record available.
Inventors
- 👤 Hanes Vaughan Dean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:17
CPC Classifications
E; E21; E21B; E21B23/00; E21B23/06; E21B23/065
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
IN A BRIDGING PLUG ADAPTED TO BE RUN ON A HOISTING LINE AND HAVING A TUBULAR PISTON AND TUBULAR CYLINDER MOUNTED ON AND IN TELESCOPIC RELATION TO EACH OTHER, A COMBUSTION CHAMBER IN SAID PISTON, AN EXPANSION CHAMBER IN SAID CYLINDER, AND A FLUID PASSAGEWAY CONNECTING SAID COMBUSTION CHAMBER WITH SAID EXPANSION CHAMBER; IGNITABLE PROPELLANT MEANS IN SAID COMBUSTION CHAMBER; AN IGNITER IN SAID TUBULAR PISTON AND ASSOCIATED WITH SAID PROPELLANT, SPRING-PRESSED PERCUSSION MEANS FOR INITIATING SAID INGNITER; A LATCH FOR SAID PERCUSSION MEANS NORMALLY HOLDING THE PERCUSSION MEANS IN ITS RETRACTED POSITION; PLUNGER MEANS FOR RELEASING SAID LATCH; AND MEANS ASSOCIATED WITH SAID HOISTING LINE FOR ACTUATING SAID PLUNGER.
Claim 2
Dependent Claim
110 words
IN A BRIDGING PLUG ADAPTED TO BE RUN ON A HOISTING LINE AND HAVING A TUBULAR PISTON AND TUBULAR CYLINDER MOUNTED ON AND IN TELESCOPIC RELATION TO EACH OTHER, A COMBUSTION CHAMBER IN SAID PISTON, AN EXPANSION CHAMBER IN SAID CYLINDER, AND A FLUID PASSAGEWAY CONNECTING SAID COMBUSTION CHAMBER WITH SAID EXPANSION CHAMBER; IGNITABLE PROPELLANT MEANS IN SAID COMBUSTION CHAMBER; AN IGNITER IN SAID TUBULAR PISTON AND ASSOCIATED WITH SAID PROPELLANT, SPRING-PRESSED PERCUSSION MEANS FOR INITIATING SAID INGNITER; A LATCH FOR SAID PERCUSSION MEANS NORMALLY HOLDING THE PERCUSSION MEANS IN ITS RETRACTED POSITION; PLUNGER MEANS FOR RELEASING SAID LATCH; AND MEANS ASSOCIATED WITH SAID HOISTING LINE FOR ACTUATING SAID PLUNGER.
References Cited (Backward Citations)
US2807325A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-02 | 1967-12-02 | 1968-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-02 | 1971-12-02 | 1972-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-02 | 1975-12-02 | 1976-06-02 | $7700.00 | Window Closed / Lapsed |