Patent US2542347A successfully refreshed from Google Patents.
Patent US3263426A successfully refreshed from Google Patents.
US3263426A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power tool
Assignee: Ingersoll Rand Co
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Filing: 1963-03-18
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Granted: 1966-08-02
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Expires: 1983-03-18
Abstract
No abstract record available.
Inventors
- 👤 Donald K Skoog
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:17
CPC Classifications
B; B25; B25B; B25B23/00; B25B23/14; B25B23/145; B25B23/1453
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
185 words
APPARATUS CONNECTED TO A TOOL FOR DRIVING THE TOOL BY FLUID PRESSURE IMPULSES, SAID APPARATUS COMPRISING STATIONARY CASING MEANS, HOUSING MEANS WITHIN SAID CASTING MEANS AND CONTAINING A PRESURE-TRANSMITTING FLUID, SPINDLE MEANS MOUNTED IN SAID HOUSING MEANS AND IN SAID FLUID, ONE OF SAID HOUSING MEANS AND SAID SPINDLE MEANS BEING NON-ROTATABLY SECURED TO SAID CASING MEANS, THE OTHER OF SAID HOUSING MEANS AND SAID SPINDLE MEANS BEING ROTATABLE RELATIVE TO SAID CASING MEANS AND SAID ONE MEANS, MEANS PROVIDING A FLUID PASSAGEWAY IN COMMUNICATION WITH THE FLUID IN SAID HOUSING MEANS AND CONNECTED TO SAID TOOL, AND DRIVE MEANS CONNECTED TO SAID OTHER OF SAID HOUSING MEANS AND SAID SPINDLES MEANS FOR CAUSING RELATIVE ROTATION ON SAID OTHER MEANS WITH RESPECT TO SAID CASING MEANS AND SAID ONE MEANS, SAID HOUSING MEANS AND SAID SPINDLE MEANS BEING COOPERABLE DURING A PORTION OF EACH REVOLUTION OF SAID RELATIVE ROTATION TO DYNAMICALLY SEAL OFF A PORTION OF SAID FLUID SO THAT THE PRESSURE IN SAID PORTION OF THE FLUID INCREASES THEREBY CAUSING A FLUID PRESSURE IMPULSE TO BE TRANSMITTED THROUGH SAID FLUID PASSAGEWAY TO SAID TOOL.
Claim 2
Dependent Claim
185 words
APPARATUS CONNECTED TO A TOOL FOR DRIVING THE TOOL BY FLUID PRESSURE IMPULSES, SAID APPARATUS COMPRISING STATIONARY CASING MEANS, HOUSING MEANS WITHIN SAID CASTING MEANS AND CONTAINING A PRESURE-TRANSMITTING FLUID, SPINDLE MEANS MOUNTED IN SAID HOUSING MEANS AND IN SAID FLUID, ONE OF SAID HOUSING MEANS AND SAID SPINDLE MEANS BEING NON-ROTATABLY SECURED TO SAID CASING MEANS, THE OTHER OF SAID HOUSING MEANS AND SAID SPINDLE MEANS BEING ROTATABLE RELATIVE TO SAID CASING MEANS AND SAID ONE MEANS, MEANS PROVIDING A FLUID PASSAGEWAY IN COMMUNICATION WITH THE FLUID IN SAID HOUSING MEANS AND CONNECTED TO SAID TOOL, AND DRIVE MEANS CONNECTED TO SAID OTHER OF SAID HOUSING MEANS AND SAID SPINDLES MEANS FOR CAUSING RELATIVE ROTATION ON SAID OTHER MEANS WITH RESPECT TO SAID CASING MEANS AND SAID ONE MEANS, SAID HOUSING MEANS AND SAID SPINDLE MEANS BEING COOPERABLE DURING A PORTION OF EACH REVOLUTION OF SAID RELATIVE ROTATION TO DYNAMICALLY SEAL OFF A PORTION OF SAID FLUID SO THAT THE PRESSURE IN SAID PORTION OF THE FLUID INCREASES THEREBY CAUSING A FLUID PRESSURE IMPULSE TO BE TRANSMITTED THROUGH SAID FLUID PASSAGEWAY TO SAID TOOL.
References Cited (Backward Citations)
US2564212A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-01 | 1970-01-31 | 1970-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-01 | 1974-01-31 | 1974-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-01 | 1978-01-31 | 1978-08-02 | $7700.00 | Window Closed / Lapsed |