US3120046A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-marking clamp
Assignee: Chicago Bridge and Iron Co
•
Filing: 1961-11-15
•
Granted: 1964-02-04
•
Expires: 1981-11-15
Abstract
No abstract record available.
Inventors
- 👤 Olsen Edwin Shirl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:22
CPC Classifications
B; B66; B66C; B66C1/00; B66C1/10; B66C1/42; B66C1/44; B66C1/48; Y; Y10; Y10T; Y10T24/00; Y10T24/44; Y10T24/44291; Y10T24/44368; Y10T24/44376; Y10T24/44385; Y10T24/44444; Y10T24/44462
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
A CLAMPING DEVICE ADAPTED FOR CLAMPING AND CARRYING A LOAD COMPRISING: A GENERALLY C-SHAPED CLAMP BODY HAVING A PAIR OF ARM PORTIONS TERMINATING IN A BIGHT PORTION, A CLAMPING SCREW THREADABLY RECEIVED IN ONE OF SAID ARM PORTIONS, A PRESSURE PLATE FREELY ROTATABLY MOUNTED AT ONE END OF SAID CLAMPING SCREW BETWEEN SAID ARM PORTIONS, A CAM ROTATABLY MOUNTED IN THE OTHER OF SAID ARM PORTIONS GENERALLY OPPOSITE SAID PRESSURE PLATE, SAID CAM BEING ROTATED INTO INCREASING CLAMPING CONTACT WITH THE LOAD WHEN A FORCE IS APPLIED TO SAID CLAMP BODY WHICH IS GENERALLY OPPOSITE THE GRAVITATIONAL FORCE EXERTED BY THE LOAD; AND SPRING MEANS, HAVING ONE END SECURED TO SAID CAM AND THE OTHER END SECURED TO SAID BIGHT PORTION, FOR AUTOMATICALLY ROTATING SAID CAM OUT OF INCREASING CLAMPING CONTACT WHEN SAID CLAMPING SCREW IS ACTUATED TO RELEASE THE LOAD.
Claim 2
Dependent Claim
141 words
A CLAMPING DEVICE ADAPTED FOR CLAMPING AND CARRYING A LOAD COMPRISING: A GENERALLY C-SHAPED CLAMP BODY HAVING A PAIR OF ARM PORTIONS TERMINATING IN A BIGHT PORTION, A CLAMPING SCREW THREADABLY RECEIVED IN ONE OF SAID ARM PORTIONS, A PRESSURE PLATE FREELY ROTATABLY MOUNTED AT ONE END OF SAID CLAMPING SCREW BETWEEN SAID ARM PORTIONS, A CAM ROTATABLY MOUNTED IN THE OTHER OF SAID ARM PORTIONS GENERALLY OPPOSITE SAID PRESSURE PLATE, SAID CAM BEING ROTATED INTO INCREASING CLAMPING CONTACT WITH THE LOAD WHEN A FORCE IS APPLIED TO SAID CLAMP BODY WHICH IS GENERALLY OPPOSITE THE GRAVITATIONAL FORCE EXERTED BY THE LOAD; AND SPRING MEANS, HAVING ONE END SECURED TO SAID CAM AND THE OTHER END SECURED TO SAID BIGHT PORTION, FOR AUTOMATICALLY ROTATING SAID CAM OUT OF INCREASING CLAMPING CONTACT WHEN SAID CLAMPING SCREW IS ACTUATED TO RELEASE THE LOAD.
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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) | 1967-02-03 | 1967-08-05 | 1968-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-02-03 | 1971-08-05 | 1972-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-02-03 | 1975-08-05 | 1976-02-04 | $7700.00 | Window Closed / Lapsed |