US3274671A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing a projection on a machine component
Assignee: Zavody VI Lenina Plzen np
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Filing: 1965-08-04
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Granted: 1966-09-27
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Expires: 1985-08-04
Abstract
No abstract record available.
Inventors
- 👤 Hauer Josef
- 👤 Kobera Zdenek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:46
CPC Classifications
B; B21; B21K; B21K21/00; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49428
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
168 words
A METHOD OF PRODUCING A UNITARY MACHINE ELEMENT HAVING A WALL PORTION OF SUBSTANTIALLY UNIFORM THICKNESS AND A PROJECTING PORTION INTEGRAL WITH SAID WALL PORTION, THE DIMENSION OF SAID PROJECTING PORTION IN THE DIRECTION OF SAID THICKNESS BEING SUBSTANTIALLY GREATER THAN SAID THICKNESS, WHICH METHOD COMPRISES: (A) FORMING A UNITARY PIECE OF MATERIAL TO AN INITIAL THICKNESS SUBSTANTIALLY EQUAL TO SAID DIMENSION, SAID PIECE HAVING A MINOR CENTRAL PORTION AND A MAJOR PERIPHERAL PORTION EXTENDING FROM SAID CENTRAL PORTION TRANSVERSELY OF THE THICKNESS OF SAID PIECE IN ALL DIRECTIONS; (B) SELECTIVELY APPLYING PRESSURE TO SAID PERIPHERAL PORTION IN THE DIRECTION OF SAID THICKNESS OF SAID PIECE UNTIL THE THICKNESS OF SAID PERIPHERAL PORTION IS REDUCED TO SAID SUBSTANTIALLY UNIFORM THICKNESS WHILE RETAINING SAID CENTRAL PORTION AT SAID INITIAL THICKNESS. (1) SAID PERIPHERAL PORTION OF REDUCED THICKNESS CONSTITUTING SAID WALL PORTION, AND SAID CENTRAL PORTION OF INITIAL THICKNESS CONSTITUTING SAID PROJECTING PORTION, AND (C) PIERCING SAID CENTRAL PORTION TO FORM A PASSAGE THERETHROUGH IN THE DIRECTION OF SAID DIMENSION.
Claim 2
Independent Claim
168 words
A METHOD OF PRODUCING A UNITARY MACHINE ELEMENT HAVING A WALL PORTION OF SUBSTANTIALLY UNIFORM THICKNESS AND A PROJECTING PORTION INTEGRAL WITH SAID WALL PORTION, THE DIMENSION OF SAID PROJECTING PORTION IN THE DIRECTION OF SAID THICKNESS BEING SUBSTANTIALLY GREATER THAN SAID THICKNESS, WHICH METHOD COMPRISES: (A) FORMING A UNITARY PIECE OF MATERIAL TO AN INITIAL THICKNESS SUBSTANTIALLY EQUAL TO SAID DIMENSION, SAID PIECE HAVING A MINOR CENTRAL PORTION AND A MAJOR PERIPHERAL PORTION EXTENDING FROM SAID CENTRAL PORTION TRANSVERSELY OF THE THICKNESS OF SAID PIECE IN ALL DIRECTIONS; (B) SELECTIVELY APPLYING PRESSURE TO SAID PERIPHERAL PORTION IN THE DIRECTION OF SAID THICKNESS OF SAID PIECE UNTIL THE THICKNESS OF SAID PERIPHERAL PORTION IS REDUCED TO SAID SUBSTANTIALLY UNIFORM THICKNESS WHILE RETAINING SAID CENTRAL PORTION AT SAID INITIAL THICKNESS. (1) SAID PERIPHERAL PORTION OF REDUCED THICKNESS CONSTITUTING SAID WALL PORTION, AND SAID CENTRAL PORTION OF INITIAL THICKNESS CONSTITUTING SAID PROJECTING PORTION, AND (C) PIERCING SAID CENTRAL PORTION TO FORM A PASSAGE THERETHROUGH IN THE DIRECTION OF SAID DIMENSION.
References Cited (Backward Citations)
GB170580A
Cited
US2250542A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-26 | 1970-03-28 | 1970-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-26 | 1974-03-28 | 1974-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-26 | 1978-03-28 | 1978-09-27 | $7700.00 | Window Closed / Lapsed |