US3596493A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stamping process for metal objects
Assignee: Individual
•
Filing: 1968-08-26
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Granted: 1971-08-03
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Expires: 1988-08-26
Abstract
Abstract In a process for producing metallic objects by stamping blanks located side-by-side in echelon formation in a metal strip which is then advanced through shaping means for executing shaping operations there is provided blanks to be stamped by cutting said strip along portions of the true peripheries of the objects so that said blanks remain connected to spacer web portions of said strip solely by connecting elements maintaining said blanks within said strip during the subsequent shaping operations and until final separation of the finished objects.
Inventors
- 👤 Maurice Lachaussee
- 👤 Andre Maigret
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:15
CPC Classifications
B; B21; B21D; B21D43/00; B21D43/02; B21D43/04; B21D43/05; B21D28/00; B21D28/02; B21D28/10
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
126 words
A process for producing metallic objects from circular blanks located side by side in staggered echelon formation in a metal strip, comprising cutting lines of holes in the strip tangent to the circular blanks to be formed so as to frame strip portions corresponding to the circular blanks to be formed, thereafter cutting said strip along portions only of the ciRcular periphery of the blanks to be formed while leaving spacer web portions of said strip which form the sole connections between said blanks and said strip, thereafter advancing said strip through shaping means for executing shaping operations on said blanks so as to obtain finished metallic objects whose peripheries coincide with said peripheries of said blanks, and then separating said finished objects from said strip.
Claim 2
Dependent Claim
126 words
A process for producing metallic objects from circular blanks located side by side in staggered echelon formation in a metal strip, comprising cutting lines of holes in the strip tangent to the circular blanks to be formed so as to frame strip portions corresponding to the circular blanks to be formed, thereafter cutting said strip along portions only of the ciRcular periphery of the blanks to be formed while leaving spacer web portions of said strip which form the sole connections between said blanks and said strip, thereafter advancing said strip through shaping means for executing shaping operations on said blanks so as to obtain finished metallic objects whose peripheries coincide with said peripheries of said blanks, and then separating said finished objects from said strip.
Claim 3
Dependent Claim
39 words
A process as claimed in claim 1, in which said blanks each cut along three arcs equally spaced from each other about the periphery of the blank, said spacer web portions being disposed at the ends of said arcs.
Claim 4
Dependent Claim
13 words
A process as claimed in claim 1, in which said holes are circular.
Claim 5
Dependent Claim
37 words
A process as claimed in claim 1, in which said holes are each tangent to three blanks and in which the cuts that extend along the periphery of the blanks form with each hole a three-branch star.
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) | 1974-08-02 | 1975-02-01 | 1975-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-02 | 1979-02-01 | 1979-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-02 | 1983-02-01 | 1983-08-03 | $7700.00 | Window Closed / Lapsed |