US3387523A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shear construction
Assignee: Constellation Steel Mill Equipment Corp
•
Filing: 1965-06-30
•
Granted: 1968-06-11
•
Expires: 1985-06-30
Abstract
No abstract record available.
Inventors
- 👤 Edwin B Pray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:13
CPC Classifications
B; B23; B23D; B23D17/00; B23D17/02; B23D17/06; Y; Y10; Y10T; Y10T83/00; Y10T83/748; Y10T83/7487; Y10T83/7547; Y10T83/869; Y10T83/8798; Y10T83/8812; Y10T83/8815
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
A SHEAR WHICH COMPRISES A TABLE, A STATIONARY SHEAR BLADE MOUNTED ON SAID TABLE, A SHEAR ARM PIVOTALLY MOUNTED ON SAID TABLE, A SHEAR BLADE MOUNTED ON SAID SHEAR ARM FOR COOPERATING WITH THE STATIONARY SHEAR BLADE, MEANS FOR ENGAGING WORK ON THE TABLE TO HOLD THE WORK IN POSITION FOR SHEARING BY THE SHEAR BLADES, A HORN MOUNTED ON THE TABLE ADJACENT FREE ENDS OF THE SHEAR BLADES, A BRACKET ATTACHED TO THE SHEAR ARM AND EXTENDING TRANSVERSELY OF THE HORN, MEANS MOUNTED ON THE BRACKET AND ENGAGING A SIDE OF THE HORN REMOTE FROM THE SHEAR ARM TO HOLD FREE ENDS OF THE SHEAR BLADES IN OPERATIVE POSITION, AND A WORK RETAINING PLATE MOUNTED ON THE HORN AND EXTENDING UPWARDLY FROM THE TABLE ADJACENT THE PATH OF MOVEMENT OF THE FREE END OF THE SHEAR BLADE ON SAID SHEAR ARM TO KEEP THE WORK ALIGNED WITH THE SHEAR BLADES.
Claim 2
Dependent Claim
151 words
A SHEAR WHICH COMPRISES A TABLE, A STATIONARY SHEAR BLADE MOUNTED ON SAID TABLE, A SHEAR ARM PIVOTALLY MOUNTED ON SAID TABLE, A SHEAR BLADE MOUNTED ON SAID SHEAR ARM FOR COOPERATING WITH THE STATIONARY SHEAR BLADE, MEANS FOR ENGAGING WORK ON THE TABLE TO HOLD THE WORK IN POSITION FOR SHEARING BY THE SHEAR BLADES, A HORN MOUNTED ON THE TABLE ADJACENT FREE ENDS OF THE SHEAR BLADES, A BRACKET ATTACHED TO THE SHEAR ARM AND EXTENDING TRANSVERSELY OF THE HORN, MEANS MOUNTED ON THE BRACKET AND ENGAGING A SIDE OF THE HORN REMOTE FROM THE SHEAR ARM TO HOLD FREE ENDS OF THE SHEAR BLADES IN OPERATIVE POSITION, AND A WORK RETAINING PLATE MOUNTED ON THE HORN AND EXTENDING UPWARDLY FROM THE TABLE ADJACENT THE PATH OF MOVEMENT OF THE FREE END OF THE SHEAR BLADE ON SAID SHEAR ARM TO KEEP THE WORK ALIGNED WITH THE SHEAR BLADES.
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) | 1971-06-11 | 1971-12-11 | 1972-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-11 | 1975-12-11 | 1976-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-11 | 1979-12-11 | 1980-06-11 | $7700.00 | Window Closed / Lapsed |