Patent US3365240A successfully refreshed from Google Patents.
US3605602A
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US
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Piston rod assembly
Assignee: Dart Industries Inc
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Filing: 1969-11-19
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Granted: 1971-09-20
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Expires: 1989-11-19
Abstract
Abstract A PISTON ROD ASSEMBLY IS DESCRIBED WHICH REDUCES THE OPERATIONAL STRESSES IN THE PISTON ROD, PISTON RINGS AND COMPRESSOR CYLINDER THEREBY LEADING TO LONGER OPERATING LIVES FOR THESE PARTS. BRIEFLY, THE ASSEMBLY COMPRISES A PISTON SEGMENT AND A PISTON RINGS ROD SEGMENT, THE PISTON SEGMENT HAVING A PLURALITY OF PISTON RINGS MOUNTED THEREON ALONG WITH TWO GUIDE BUSHINGS WHICH ARE IN SPACED APART RELATIONSHIP, AND EACH OF SAID PISTON SEGMENT AND PISTON ROD SEGMENT HAVING MATING SUBSTANTIALLY SPHERICAL END SURFACES WHICH ARE IN ENE-TO-END ABUTTING RELATIONSHIP AND CONNECTED BY A THREADED TENSION MEMBER.
Inventors
- 👤 Henry K Tyson
- 👤 Karl W Wikelski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:18
CPC Classifications
F; F16; F16J; F16J1/00; F16J1/10; F16J1/12; F04; F04B; F04B53/00; F04B53/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-19 | 1975-03-21 | 1975-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-19 | 1979-03-21 | 1979-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-19 | 1983-03-21 | 1983-09-20 | $7700.00 | Window Closed / Lapsed |