US3173522A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Joints
Assignee: Individual
•
Filing: 1961-11-15
•
Granted: 1965-03-16
•
Expires: 1981-11-15
Abstract
No abstract record available.
Inventors
- 👤 Zimmer Frantisek
- 👤 Marshall Peter Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:11
CPC Classifications
F; F16; F16L; F16L23/00; F16L23/16; F16L23/24; F16B; F16B2200/00; F16B2200/50; F16B2200/506
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
IN A JOINT BETWEEN TWO MEMBERS OF A STRUCTURE SUBJECT TO SUDDEN TEMPERATURE CHANGES AND COMPRISING FLANGES ON SAID MEMBERS SECURED TOGETHER BY BOLTS PASSING THROUGH ALIGNED BORES IN THE FLANGES, ANNULAR BUSHING MEANS OF COMPRESSIBLE HIGH THERMAL CONDUCTIVITY METAL SURROUNDING EACH OF SAID BOLTS WITHIN SAID BORES, AND MEANS FOR TIGHTENING SAID BOLTS TO URGE SAID FLANGES TIGHTLY TOGETHER, SAID TIGHTENING MEANS AXIALLY COMPRESSING AND RADIALLY EXPANDING SAID BUSHING MEANS INTO INTIMATE HEAT EXCHANGE CONTACT WITH ITS ASSOCIATED BORE ABD BOLT.
Claim 2
Dependent Claim
82 words
IN A JOINT BETWEEN TWO MEMBERS OF A STRUCTURE SUBJECT TO SUDDEN TEMPERATURE CHANGES AND COMPRISING FLANGES ON SAID MEMBERS SECURED TOGETHER BY BOLTS PASSING THROUGH ALIGNED BORES IN THE FLANGES, ANNULAR BUSHING MEANS OF COMPRESSIBLE HIGH THERMAL CONDUCTIVITY METAL SURROUNDING EACH OF SAID BOLTS WITHIN SAID BORES, AND MEANS FOR TIGHTENING SAID BOLTS TO URGE SAID FLANGES TIGHTLY TOGETHER, SAID TIGHTENING MEANS AXIALLY COMPRESSING AND RADIALLY EXPANDING SAID BUSHING MEANS INTO INTIMATE HEAT EXCHANGE CONTACT WITH ITS ASSOCIATED BORE ABD BOLT.
References Cited (Backward Citations)
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Cited
US1937465A
Cited
US2000653A
Cited
US2196683A
Cited
US2808616A
Cited
US3052452A
Cited
US3045785A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-15 | 1968-09-14 | 1969-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-15 | 1972-09-14 | 1973-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-15 | 1976-09-14 | 1977-03-16 | $7700.00 | Window Closed / Lapsed |