US3867107A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Integral corner fabrication
Assignee: Westinghouse Electric Corp
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Filing: 1973-02-27
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Granted: 1975-02-18
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Expires: 1993-02-27
Abstract
Abstract A corner is fabricated from a single member having a crosssectional shape including opposite flanges and an intervening web such as a sheet metal channel by cutting and manipulating the member so as to eliminate fastening devices.
Inventors
- 👤 Olan L Long
- 👤 Richard W Sayward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:56
CPC Classifications
A; A47; A47L; A47L15/00; A47L15/42; A47L15/4251; A47L15/4253; B; B21; B21D; B21D53/00; B21D53/74; E; E06; E06B; E06B3/00; E06B3/96; E06B3/988; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12347; Y10T428/12354; Y10T428/12361; Y10T428/1241
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
177 words
A CORNER FORMED BY MANIPULATING A SINGLE MEMBER HAVING A CROSS-SECTIONAL SHAPE INCLUDING OPPOSITE FLANGES AND AN INTERVENING WEB, SAID MEMBER HAVING A CUTOUT PORTION OF ITS WEB WITH ONE BOUNDARY OF THE CUTOUT PORTION LOCATED ADJACENT THE FLANGE FORMING THE OUTER SIDE OF THE CORNER AFTER BENDING, AND THE OPPOSITE BOUNDARY OF THE CUTOUT PORTION PROVIDING AN EXTENDED LENGTH OF SEPARATION BETWEEN SAID WEB AND THE FLANGE FORMING THE INNER SIDE OF THE CORNER AFTER BENDING, SAID MEMBER IN THE COMPLETED MANIPULATED FORM OF SAID CORNER HAVING THE PORTION OF SAID INNER FLANGE FREE OF SAID WEB DISPLACED TOWARD THE OUTER FLANGE AND CRIMPED BACK UPON ITSELF AND FLATTENED AGAINST THE INNER FACE OF SAID INNER FLANGE TO SECURE SAID CORNER AS FORMED; AND, SAID WEB HAVING A SECTION THEREOF CONTIGUOUS WITH ONE SIDE OF SAID CUTOUT PORTION AND OFFSET FROM THE GENERAL PLANE OF SAID WEB SUFFICIENTLY TO ACCOMMODATE OVERLAPPING OF SAID WEB CONTIGUOUS TO THE OPPOSITE SIDE OF SAID CUTOUT PORTION TO FORM A DOUBLE LAYER OF MATERIAL THEREAT WHEN SAID CORNER IS FORMED.
Claim 2
Dependent Claim
177 words
A CORNER FORMED BY MANIPULATING A SINGLE MEMBER HAVING A CROSS-SECTIONAL SHAPE INCLUDING OPPOSITE FLANGES AND AN INTERVENING WEB, SAID MEMBER HAVING A CUTOUT PORTION OF ITS WEB WITH ONE BOUNDARY OF THE CUTOUT PORTION LOCATED ADJACENT THE FLANGE FORMING THE OUTER SIDE OF THE CORNER AFTER BENDING, AND THE OPPOSITE BOUNDARY OF THE CUTOUT PORTION PROVIDING AN EXTENDED LENGTH OF SEPARATION BETWEEN SAID WEB AND THE FLANGE FORMING THE INNER SIDE OF THE CORNER AFTER BENDING, SAID MEMBER IN THE COMPLETED MANIPULATED FORM OF SAID CORNER HAVING THE PORTION OF SAID INNER FLANGE FREE OF SAID WEB DISPLACED TOWARD THE OUTER FLANGE AND CRIMPED BACK UPON ITSELF AND FLATTENED AGAINST THE INNER FACE OF SAID INNER FLANGE TO SECURE SAID CORNER AS FORMED; AND, SAID WEB HAVING A SECTION THEREOF CONTIGUOUS WITH ONE SIDE OF SAID CUTOUT PORTION AND OFFSET FROM THE GENERAL PLANE OF SAID WEB SUFFICIENTLY TO ACCOMMODATE OVERLAPPING OF SAID WEB CONTIGUOUS TO THE OPPOSITE SIDE OF SAID CUTOUT PORTION TO FORM A DOUBLE LAYER OF MATERIAL THEREAT WHEN SAID CORNER IS FORMED.
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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) | 1978-02-17 | 1978-08-19 | 1979-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-17 | 1982-08-19 | 1983-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-17 | 1986-08-19 | 1987-02-18 | $7700.00 | Window Closed / Lapsed |