Patent US3143095A successfully refreshed from Google Patents.
US3143095A
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Clinching apparatus
Assignee: British Federal Welder and Machine Co Ltd
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Filing: 1961-08-23
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Granted: 1964-08-04
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Expires: 1981-08-23
Abstract
No abstract record available.
Inventors
- 👤 Tribe Thomas Francis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:51
CPC Classifications
B; B21; B21D; B21D39/00; B21D39/02; B21D39/021; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53709; Y10T29/53787; Y10T29/53791
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
CLINCHING APPARATUS COMPRISING A FRAME, A CLINCHING MEMBER MOUNTED ON SAID FRAME, MEANS TO MOVE SAID CLINCHING MEMBER TOWARDS AND AWAY FROM A PANEL SURFACE, A PRE-FORM MEMBER MOVABLY MOUNTED ON SAID CLINCHING MEMBER, FLUID-PRESSURE MEANS TO ADVANCE SAID PRE-FORM MEMBER SUBSTANTIALLY NORMALLY TOWARDS AN UPSTANDING MARGINAL FLANGE OF THE PANEL TO BEND SUCH FLANGE TO AN ACUTE ANGLE TO THE PANEL SURFACE, A STATIONARY PART ON SAID FRAME TO RETRACT THE ADVANCED PRE-FORM MEMBER PRIOR TO ENGAGEMENT OF SAID CLINCHING MEMBER WITH THE PREFORMED FLANGE AND AUTOMATIC CONTROL MEANS ASSOCIATED WITH SAID FLUID-PRESSURE MEANS TO RELEASE FLUID-PRESSURE DURING THE MOVEMENT OF SAID CLINCHING AND PRE-FORM MEMBERS TOWARDS THE PANEL SURFACE.
Claim 2
Dependent Claim
111 words
CLINCHING APPARATUS COMPRISING A FRAME, A CLINCHING MEMBER MOUNTED ON SAID FRAME, MEANS TO MOVE SAID CLINCHING MEMBER TOWARDS AND AWAY FROM A PANEL SURFACE, A PRE-FORM MEMBER MOVABLY MOUNTED ON SAID CLINCHING MEMBER, FLUID-PRESSURE MEANS TO ADVANCE SAID PRE-FORM MEMBER SUBSTANTIALLY NORMALLY TOWARDS AN UPSTANDING MARGINAL FLANGE OF THE PANEL TO BEND SUCH FLANGE TO AN ACUTE ANGLE TO THE PANEL SURFACE, A STATIONARY PART ON SAID FRAME TO RETRACT THE ADVANCED PRE-FORM MEMBER PRIOR TO ENGAGEMENT OF SAID CLINCHING MEMBER WITH THE PREFORMED FLANGE AND AUTOMATIC CONTROL MEANS ASSOCIATED WITH SAID FLUID-PRESSURE MEANS TO RELEASE FLUID-PRESSURE DURING THE MOVEMENT OF SAID CLINCHING AND PRE-FORM MEMBERS TOWARDS THE PANEL SURFACE.
References Cited (Backward Citations)
US1961582A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-04 | 1968-02-03 | 1968-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-04 | 1972-02-03 | 1972-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-04 | 1976-02-03 | 1976-08-04 | $7700.00 | Window Closed / Lapsed |