US3176594A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Friction device operating mechanism
Assignee: Studebaker Worthington Inc
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Filing: 1962-10-12
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Granted: 1965-04-06
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Expires: 1982-10-12
Abstract
No abstract record available.
Inventors
- 👤 Oliver B Cruse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:07
CPC Classifications
B; B60; B60T; B60T17/00; B60T17/08; B60T17/083; F; F15; F15B; F15B20/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
233 words
A FRICTION DEVICE OPERATING MECHANISM COMPRISING A HOUSING HAVING A BORE AND AN ALIGNED TAPERED BORE THEREIN, A SHOULDER FORMED AT THE JUNCTURE OF SAID HOUSING BORE AND TAPERED BORE, AN END WALL CONNECTED WITH SAID HOUSING AT ONE END THEREOF AND CLOSING SAID HOUSING BORE, AN END PLATE, A DIAPHRAGM CLAMPED BETWEEN SAID HOUSING AT THE OTHER END THEROEF AND SAID END PLATE CLOSING SAID TAPERED BORE, A PUSH ROD CONNECTED WITH SAID DIAPHRAGM AND HAVING A WORKING END EXTENDING EXTERIORLY OF SAID END PLATE, A FIRST PISTON INCLUDING A HEAD PORTION NORMALLY ENGAGED WITH SAID SHOULDER AND AN INTEGRAL SLEEVE PORTION SLIDABLE IN SAID HOUSING BORE, A FIRST EXPANSIBLE CHAMBER IN SAID HOUSING BORE AND TAPERED BORE BETWEEN SAID DIAPHRAGM AND SAID FIRST PISTON HEAD PORTION, A SLEEVE BORE IN SAID FIRST PISTON SLEEVE PORTION AND COAXIAL WITH SAID HOUSING BORE, A CENTRALLY LOCATED APERTURE IN SAID FIRST PISTON HEAD PORTION BETWEEN SAID FIRST CHAMBER AND SLEEVE BORE, A SECOND PISTON SLIDABLE IN SAID SLEEVE BORE, AN EXTENSION CONNECTED WITH SAID SECOND PISTON AND SLIDABLE IN SAID APERTURE IN SAID FIRST PISTON HEAD PORTION, SAID EXTENSION HAVING A WORKING END IN SAID FIRST CHAMBER FOR DRIVING ENGAGEMENT WITH SAID DIAPHRAGM, A SECOND EXPANSIBLE CHAMBER IN SAID SLEEVE BORE BETWEEN SAID FIRST PISTON HEAD PORTION AND SAID SECOND PISTON, A PERIPHERAL RECESS IN SAID FIRST PISTON SLEEVE PORTION, PASSAGE MEANS IN SAID
Claim 2
Dependent Claim
233 words
A FRICTION DEVICE OPERATING MECHANISM COMPRISING A HOUSING HAVING A BORE AND AN ALIGNED TAPERED BORE THEREIN, A SHOULDER FORMED AT THE JUNCTURE OF SAID HOUSING BORE AND TAPERED BORE, AN END WALL CONNECTED WITH SAID HOUSING AT ONE END THEREOF AND CLOSING SAID HOUSING BORE, AN END PLATE, A DIAPHRAGM CLAMPED BETWEEN SAID HOUSING AT THE OTHER END THEROEF AND SAID END PLATE CLOSING SAID TAPERED BORE, A PUSH ROD CONNECTED WITH SAID DIAPHRAGM AND HAVING A WORKING END EXTENDING EXTERIORLY OF SAID END PLATE, A FIRST PISTON INCLUDING A HEAD PORTION NORMALLY ENGAGED WITH SAID SHOULDER AND AN INTEGRAL SLEEVE PORTION SLIDABLE IN SAID HOUSING BORE, A FIRST EXPANSIBLE CHAMBER IN SAID HOUSING BORE AND TAPERED BORE BETWEEN SAID DIAPHRAGM AND SAID FIRST PISTON HEAD PORTION, A SLEEVE BORE IN SAID FIRST PISTON SLEEVE PORTION AND COAXIAL WITH SAID HOUSING BORE, A CENTRALLY LOCATED APERTURE IN SAID FIRST PISTON HEAD PORTION BETWEEN SAID FIRST CHAMBER AND SLEEVE BORE, A SECOND PISTON SLIDABLE IN SAID SLEEVE BORE, AN EXTENSION CONNECTED WITH SAID SECOND PISTON AND SLIDABLE IN SAID APERTURE IN SAID FIRST PISTON HEAD PORTION, SAID EXTENSION HAVING A WORKING END IN SAID FIRST CHAMBER FOR DRIVING ENGAGEMENT WITH SAID DIAPHRAGM, A SECOND EXPANSIBLE CHAMBER IN SAID SLEEVE BORE BETWEEN SAID FIRST PISTON HEAD PORTION AND SAID SECOND PISTON, A PERIPHERAL RECESS IN SAID FIRST PISTON SLEEVE PORTION, PASSAGE MEANS IN SAID
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) | 1968-04-05 | 1968-10-05 | 1969-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-05 | 1972-10-05 | 1973-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-05 | 1976-10-05 | 1977-04-06 | $7700.00 | Window Closed / Lapsed |