Patent US4701065A successfully refreshed from Google Patents.
Patent US3108545A successfully refreshed from Google Patents.
US3108545A
Expired / Lapsed
US
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Hydraulic axial piston machine
Assignee: Individual
•
Filing: 1960-04-13
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Granted: 1963-10-29
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Expires: 1980-04-13
Abstract
No abstract record available.
Inventors
- 👤 Karl Bauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:17
CPC Classifications
F; F01; F01B; F01B3/00; F01B3/0082; F01B3/0085; F01B3/0002; F01B3/0017; F01B3/0023; F01B3/0026; F16; F16H; F16H39/00; F16H39/04; F16H39/06; F16H39/08; F16H39/10; F16H39/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
284 words
IN A HYDRAULIC AXIAL PISTON MACHINE, IN COMBINATION, A CYLINDER BLOCK HAVING A CYLINDER MEANS INCLUDING A PLURALITY OF CYLINDERS; PISTON MEANS INCLUDING A PLURALITY OF PISTONS RESPECTIVELY LOCATED IN SAID CYLINDERS AND DEFINING A PLURALITY OF CYLINDER CHAMBERS IN THE SAME, AND A PLURALITY OF PISTON RODS HAVING FIRST ENDS CONNECTED TO SAID PISTONS AND SECOND ENDS HAVING HEADS, EACH OF SAID PISTON MEANS HAVING A CONDUIT MEANS CONNECTING THE RESPECTIVE CYLINDER CHAMBER WITH SAID HEAD OF THE RESPECTIVE PISTON ROD; WOBBLE PLATE MEANS HAVING A FACE; A BEARING RING MOUNTED ON SAID WOBBLE PLATE MEANS AND HAVING A FACE CONFRONTING SAID FACE OF SAID WOBBLE PLATE MEANS, SAID FACE OF SAID BEARING RING FORMING WITH SAID FACE OF SAID WOBBLE PLATE MEANS A PLURALITY OF A BALANCING CHAMBERS CIRCUMFERENTIALLY SPACED ABOUT SAID BEARING RING, THE CROSSSECTIONAL PRESSURE AREA OF EACH OF SAID BALANCING CHAMBERS BEING GREATER THAN THE CROSS-SECTIONAL PRESSURE AREA OF THE RESPECTIVE ASSOCIATED CYLINDER, SAID BEARING RING HAVING A PLURALITY OF BEARING SURFACES SUPPORTING SAID HEADS, AND BEING FORMED WITH A PLURALITY OF THROTTLING DUCTS OPENING ON SAID BEARING SURFACES, RESPECTIVELY, AND CONNECTING SAID CONDUIT MEANS WITH SAID BALANCING CHAMBERS, RESPECTIVELY SO THAT THE SPECIFIC PRESSURE IN SAID BALANCING CHAMBER IS SMALLER THAN THE SPECIFIC PRESSURE IN SAID CYLINDER CHAMBERS WHEN THE TOTAL PRESSURE OF SAID LARGER CROSS-SECTIONAL PRESSURE AREA OF SAID BALANCING CHAMBERS IS IN EQUILIBRIUM WITH THE TOTAL PRESSURE OF SAID CYLINDER CHAMBERS ACTING ON SAID PISTON MEANS WHEREBY FLUID CONTINUOUSLY FLOWS THROUGH SAID CONDUIT MEANS, SAID DUCTS, AND SAID BALANCING CHAMBERS AND IS DISCHARGED BETWEEN SAID FACES WHEREBY SAID FACES ARE SLIGHTLY SEPARATED AND MAINTAINED PARALLEL TO EACH OTHER WHILE MECHANICAL CONTACT BETWEEN SAID FACES IS PREVENTED.
Claim 2
Dependent Claim
284 words
IN A HYDRAULIC AXIAL PISTON MACHINE, IN COMBINATION, A CYLINDER BLOCK HAVING A CYLINDER MEANS INCLUDING A PLURALITY OF CYLINDERS; PISTON MEANS INCLUDING A PLURALITY OF PISTONS RESPECTIVELY LOCATED IN SAID CYLINDERS AND DEFINING A PLURALITY OF CYLINDER CHAMBERS IN THE SAME, AND A PLURALITY OF PISTON RODS HAVING FIRST ENDS CONNECTED TO SAID PISTONS AND SECOND ENDS HAVING HEADS, EACH OF SAID PISTON MEANS HAVING A CONDUIT MEANS CONNECTING THE RESPECTIVE CYLINDER CHAMBER WITH SAID HEAD OF THE RESPECTIVE PISTON ROD; WOBBLE PLATE MEANS HAVING A FACE; A BEARING RING MOUNTED ON SAID WOBBLE PLATE MEANS AND HAVING A FACE CONFRONTING SAID FACE OF SAID WOBBLE PLATE MEANS, SAID FACE OF SAID BEARING RING FORMING WITH SAID FACE OF SAID WOBBLE PLATE MEANS A PLURALITY OF A BALANCING CHAMBERS CIRCUMFERENTIALLY SPACED ABOUT SAID BEARING RING, THE CROSSSECTIONAL PRESSURE AREA OF EACH OF SAID BALANCING CHAMBERS BEING GREATER THAN THE CROSS-SECTIONAL PRESSURE AREA OF THE RESPECTIVE ASSOCIATED CYLINDER, SAID BEARING RING HAVING A PLURALITY OF BEARING SURFACES SUPPORTING SAID HEADS, AND BEING FORMED WITH A PLURALITY OF THROTTLING DUCTS OPENING ON SAID BEARING SURFACES, RESPECTIVELY, AND CONNECTING SAID CONDUIT MEANS WITH SAID BALANCING CHAMBERS, RESPECTIVELY SO THAT THE SPECIFIC PRESSURE IN SAID BALANCING CHAMBER IS SMALLER THAN THE SPECIFIC PRESSURE IN SAID CYLINDER CHAMBERS WHEN THE TOTAL PRESSURE OF SAID LARGER CROSS-SECTIONAL PRESSURE AREA OF SAID BALANCING CHAMBERS IS IN EQUILIBRIUM WITH THE TOTAL PRESSURE OF SAID CYLINDER CHAMBERS ACTING ON SAID PISTON MEANS WHEREBY FLUID CONTINUOUSLY FLOWS THROUGH SAID CONDUIT MEANS, SAID DUCTS, AND SAID BALANCING CHAMBERS AND IS DISCHARGED BETWEEN SAID FACES WHEREBY SAID FACES ARE SLIGHTLY SEPARATED AND MAINTAINED PARALLEL TO EACH OTHER WHILE MECHANICAL CONTACT BETWEEN SAID FACES IS PREVENTED.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-10-28 | 1967-04-29 | 1967-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-28 | 1971-04-29 | 1971-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-28 | 1975-04-29 | 1975-10-29 | $7700.00 | Window Closed / Lapsed |