US3322210A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Impact tool
Assignee: Beteiligungs und Patentverwaltungs GmbH
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Filing: 1964-09-03
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Granted: 1967-05-30
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Expires: 1984-09-03
Abstract
No abstract record available.
Inventors
- 👤 Arndt Friedrich-Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:34
CPC Classifications
B; B25; B25D; B25D9/00; B25D9/06; B25D9/12; B25D9/14; B25D9/145
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
AN IMPACT DEVICE FOR THE GENERATION OF PERCUSSIVE FORCE, COMPRISING: A HOUSING FORMED WITH AN AXIALLY EXTENDING BORE; AN IMPACT PISTON AXIALLY RECIPROCABLE WITHIN SAID BORE BETWEEN A REARWARD POSITION WHEREIN SAID PISTON IS WITHDRAWN FROM AN IMPACT-RECEIVING ELEMENT AND A FORWARD POSITION WHEREIN SAID PISTON TRANSFERS ENERGY TO SAID ELEMENT, SAID PISTON DEFINING IN SAID BORE AT LEAST ONE WORKING CHAMBER; HIGH-PRESSURE INLET MEANS IN SAID HOUSING FOR SUPPLYING SAID BORE WITH A FLUID MEDIUM UNDER AN ELEVATED PRESSURE; LOW-PRESSURE OUTLET MEANS IN SAID HOUSING FOR LEADING FLUID AWAY FROM SAID CHAMBER, SAID INLET AND OUTLET MEANS EACH BEING PROVIDED WITH A RESPECTIVE FORCESTORING FLUID-PRESSURE ACCUMULATOR; AND AN ANNULAR SLIDE VAVLE IN SAID HOUSING SURROUNDING SAID PISTON AND SAID CHAMBER WHILE BEING AXIALLY
Claim 2
Dependent Claim
124 words
AN IMPACT DEVICE FOR THE GENERATION OF PERCUSSIVE FORCE, COMPRISING: A HOUSING FORMED WITH AN AXIALLY EXTENDING BORE; AN IMPACT PISTON AXIALLY RECIPROCABLE WITHIN SAID BORE BETWEEN A REARWARD POSITION WHEREIN SAID PISTON IS WITHDRAWN FROM AN IMPACT-RECEIVING ELEMENT AND A FORWARD POSITION WHEREIN SAID PISTON TRANSFERS ENERGY TO SAID ELEMENT, SAID PISTON DEFINING IN SAID BORE AT LEAST ONE WORKING CHAMBER; HIGH-PRESSURE INLET MEANS IN SAID HOUSING FOR SUPPLYING SAID BORE WITH A FLUID MEDIUM UNDER AN ELEVATED PRESSURE; LOW-PRESSURE OUTLET MEANS IN SAID HOUSING FOR LEADING FLUID AWAY FROM SAID CHAMBER, SAID INLET AND OUTLET MEANS EACH BEING PROVIDED WITH A RESPECTIVE FORCESTORING FLUID-PRESSURE ACCUMULATOR; AND AN ANNULAR SLIDE VAVLE IN SAID HOUSING SURROUNDING SAID PISTON AND SAID CHAMBER WHILE BEING AXIALLY
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) | 1970-05-29 | 1970-11-28 | 1971-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-29 | 1974-11-28 | 1975-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-29 | 1978-11-28 | 1979-05-30 | $7700.00 | Window Closed / Lapsed |