Patent US3130645A successfully refreshed from Google Patents.
US3130645A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slip ring
Assignee: NA Woodworth Co
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Filing: 1961-05-29
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Granted: 1964-04-28
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Expires: 1981-05-29
Abstract
No abstract record available.
Inventors
- 👤 Hohwart George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:40
CPC Classifications
B; B23; B23B; B23B31/00; B23B31/02; B23B31/32; Y; Y10; Y10S; Y10S277/00; Y10S277/91; Y10S277/928; Y10T; Y10T279/00; Y10T279/12; Y10T279/1233
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
192 words
IN A ROTATABLE DIAPHRAGM TYPE CHUCK HAVING AN ENCLOSED CYLINDER WITH A PASSAGEWAY IN FLUID COMMUNICATION WITH A RADIALLY OUTWARDLY FACING RECTANGULAR ANNULAR GROOVE AND BEING OPERABLE BY PRESSURE IN THE CYLINDER FROM A SOURCE OF SELECTIVELY ACTUABLE FLUID PRESSURE, A STATIONARY SLIP RING ASSEMBLY FOR PROVIDING A SEAL WITHIN THE RECTANGULAR GROOVE COMPRISING AN ANNULAR DIAMETRICALLY SPLIT RING DISPOSED IN THE RECTANGULAR GROOVE AND HAVING A PAIR OF ANNULAR SEAL RETAINING GROOVES EACH OPENING ON AXIAL OPPOSITE SIDES TOWARDS AN ADJACENT WALL OF THE RECTANGULAR GROOVE, MEANS FOR FIXEDLY SECURING THE DIAMETRICAL HALVES OF SAID SPLIT RING TOGETHER, SPHERICAL JOINT MEANS CONNECTED TO SAID SPLIT RING FOR PROVIDING POSITIONAL ADJUSTABILITY OF SAID SPLIT RING TO A CLEARANCE RELATIONSHIP IN THE RECTANGULAR GROOVE, MEANS INCLUDING A PAIR OF AXIAL PASSAGES IN SAID SPLIT RING EACH INDIVIDUAL TO ONE OF SAID PAIR OF SEAL RETAINING GROOVES FOR COMMUNICATING SAID PAIR OF SEAL RETAINING GROOVES TO THE SOURCE OF FLUID PRESSURE, SAID SPLIT RING HAVING A PAIR OF DIAGONALLY INTERSECTING PASSAGES RADIALLY DISPLACED FROM SAID PAIR OF AXIAL PASSAGES FOR COMMUNICATING SAID PAIR OF SEAL RETAINING GROOVES TO THE CLEARANCE GAP BETWEEN SAID SPLIT
Claim 2
Dependent Claim
192 words
IN A ROTATABLE DIAPHRAGM TYPE CHUCK HAVING AN ENCLOSED CYLINDER WITH A PASSAGEWAY IN FLUID COMMUNICATION WITH A RADIALLY OUTWARDLY FACING RECTANGULAR ANNULAR GROOVE AND BEING OPERABLE BY PRESSURE IN THE CYLINDER FROM A SOURCE OF SELECTIVELY ACTUABLE FLUID PRESSURE, A STATIONARY SLIP RING ASSEMBLY FOR PROVIDING A SEAL WITHIN THE RECTANGULAR GROOVE COMPRISING AN ANNULAR DIAMETRICALLY SPLIT RING DISPOSED IN THE RECTANGULAR GROOVE AND HAVING A PAIR OF ANNULAR SEAL RETAINING GROOVES EACH OPENING ON AXIAL OPPOSITE SIDES TOWARDS AN ADJACENT WALL OF THE RECTANGULAR GROOVE, MEANS FOR FIXEDLY SECURING THE DIAMETRICAL HALVES OF SAID SPLIT RING TOGETHER, SPHERICAL JOINT MEANS CONNECTED TO SAID SPLIT RING FOR PROVIDING POSITIONAL ADJUSTABILITY OF SAID SPLIT RING TO A CLEARANCE RELATIONSHIP IN THE RECTANGULAR GROOVE, MEANS INCLUDING A PAIR OF AXIAL PASSAGES IN SAID SPLIT RING EACH INDIVIDUAL TO ONE OF SAID PAIR OF SEAL RETAINING GROOVES FOR COMMUNICATING SAID PAIR OF SEAL RETAINING GROOVES TO THE SOURCE OF FLUID PRESSURE, SAID SPLIT RING HAVING A PAIR OF DIAGONALLY INTERSECTING PASSAGES RADIALLY DISPLACED FROM SAID PAIR OF AXIAL PASSAGES FOR COMMUNICATING SAID PAIR OF SEAL RETAINING GROOVES TO THE CLEARANCE GAP BETWEEN SAID SPLIT
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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) | 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 |