Patent US3276043A successfully refreshed from Google Patents.
US3110367A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic cushioning device for railway vehicles
Assignee: Buckeye Steel Castings Co
•
Filing: 1962-03-16
•
Granted: 1963-11-12
•
Expires: 1982-03-16
Abstract
No abstract record available.
Inventors
- 👤 Leslie N Roberts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:01
CPC Classifications
B; B61; B61G; B61G9/00; B61G9/12; B61G9/16; F; F16; F16F; F16F9/00; F16F9/10; F16F9/14; F16F9/16; F16F9/18; F16F9/20; F16F9/32; F16F9/3207
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
180 words
A HYDRAULIC DEVICE FOR CUSHIONING IMPACTS COMPRISING, A TUBULAR HOUSING MEMBER, A HEAD MEMBER CLOSING EACH OF THE OPPOSITE ENDS OF SAID TUBULAR HOUSING MEMBER, A PISTON AND PISTON ROD ASSEMBLY WITH PISTON RODS EXTENDING THROUGH EACH OF SAID HEAD MEMBERS, SAID TUBULAR HOUSING MEMBER HAVING A DIAMETER AT A MID-PORTION GREATER THAN THE DIAMETER OF SAID PISTON, INNER SURFACES ON SAID TUBULAR HOUSING MEMBER OF CONICAL SHAPE CONVERGING INWARDLY IN PROCEEDING TOWARDS EACH END FROM SAID MID-PORTION, CIRCUMFERENTIALLY SPACED ENLARGEMENTS AT THE ENDS OF SAID TUBULAR HOUSING MEMBER HAVING THREADED OPENINGS FOR RECEIVING FASTENING MEANS JOINING SAID HEAD MEMBERS TO SAID TUBULAR HOUSING MEMBER, LONGITUDINALLY EXTENDING AREAS ON SAID TUBULAR MEMBER IN ALIGNMENT WITH THE ENLARGEMENTS ON THE LOWER PORTION THEREOF EACH ACCOMMODATING A LONGITUDINALLY EXTENDING PASSAGE, EACH HEAD MEMBER HAVING DUCTS LEADING DOWNWARDLY FROM THE VICINITY OF THE PISTON ROD, SAID TUBULAR HOUSING MEMBER HAVING OPENINGS THEREIN IN COMMUNICATION WITH SAID DUCTS AND SAID PASSAGES, AND SAID TUBULAR HOUSING MEMBER HAVING AN OPENING LEADING FROM EACH PASSAGE AT THE MID-PORTION INTO THE INTERIOR OF SAID TUBULAR HOUSING MEMBER.
Claim 2
Dependent Claim
180 words
A HYDRAULIC DEVICE FOR CUSHIONING IMPACTS COMPRISING, A TUBULAR HOUSING MEMBER, A HEAD MEMBER CLOSING EACH OF THE OPPOSITE ENDS OF SAID TUBULAR HOUSING MEMBER, A PISTON AND PISTON ROD ASSEMBLY WITH PISTON RODS EXTENDING THROUGH EACH OF SAID HEAD MEMBERS, SAID TUBULAR HOUSING MEMBER HAVING A DIAMETER AT A MID-PORTION GREATER THAN THE DIAMETER OF SAID PISTON, INNER SURFACES ON SAID TUBULAR HOUSING MEMBER OF CONICAL SHAPE CONVERGING INWARDLY IN PROCEEDING TOWARDS EACH END FROM SAID MID-PORTION, CIRCUMFERENTIALLY SPACED ENLARGEMENTS AT THE ENDS OF SAID TUBULAR HOUSING MEMBER HAVING THREADED OPENINGS FOR RECEIVING FASTENING MEANS JOINING SAID HEAD MEMBERS TO SAID TUBULAR HOUSING MEMBER, LONGITUDINALLY EXTENDING AREAS ON SAID TUBULAR MEMBER IN ALIGNMENT WITH THE ENLARGEMENTS ON THE LOWER PORTION THEREOF EACH ACCOMMODATING A LONGITUDINALLY EXTENDING PASSAGE, EACH HEAD MEMBER HAVING DUCTS LEADING DOWNWARDLY FROM THE VICINITY OF THE PISTON ROD, SAID TUBULAR HOUSING MEMBER HAVING OPENINGS THEREIN IN COMMUNICATION WITH SAID DUCTS AND SAID PASSAGES, AND SAID TUBULAR HOUSING MEMBER HAVING AN OPENING LEADING FROM EACH PASSAGE AT THE MID-PORTION INTO THE INTERIOR OF SAID TUBULAR HOUSING MEMBER.
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) | 1966-11-11 | 1967-05-13 | 1967-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-11 | 1971-05-13 | 1971-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-11 | 1975-05-13 | 1975-11-12 | $7700.00 | Window Closed / Lapsed |