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Patent US4040177A successfully refreshed from Google Patents.
US4040177A
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US
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Method of manufacturing an electrical contact
Assignee: US Philips Corp
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Filing: 1976-05-25
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Granted: 1977-08-09
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Expires: 1996-05-25
Abstract
Abstract A method of manufacturing an electrical contact member by splitting an end portion of a bar longitudinally into two parts, flattening and bending the two parts thus obtained.
Inventors
- 👤 Alfred Beeler
- 👤 Wilhelmus Marinus Cornelius VAN DER Mijden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:02
CPC Classifications
H; H01; H01R; H01R13/00; H01R13/02; H01R13/10; H01R13/11; H01R13/112; H01R43/00; H01R43/16; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49204; Y10T29/49208; Y10T29/49218
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
99 words
A method of manufacturing an electrical contact member from a bar of electrically conductive material, which comprises splitting the bar longitudinally over a portion of its length from one end into two parts, and plastically deforming the two parts to form contact tongues by bending such parts so that they diverge in opposite directions from the longitudinal dimension of the bar, flattening each part to provide respective flat surfaces, and bending such flattened parts so that they extend in spaced relation to each other approximately parallel to the longitudinal dimension of the bar with such flat surfaces oppositely disposed.
Claim 2
Independent Claim
99 words
A method of manufacturing an electrical contact member from a bar of electrically conductive material, which comprises splitting the bar longitudinally over a portion of its length from one end into two parts, and plastically deforming the two parts to form contact tongues by bending such parts so that they diverge in opposite directions from the longitudinal dimension of the bar, flattening each part to provide respective flat surfaces, and bending such flattened parts so that they extend in spaced relation to each other approximately parallel to the longitudinal dimension of the bar with such flat surfaces oppositely disposed.
Claim 3
Dependent Claim
14 words
A method as claimed in claim 1, which includes profile stamping the flattened parts.
Claim 4
Dependent Claim
62 words
A method as claimed in claim 1, in which the end portion of the bar is enclosed by two longitudinally extending tools, each tool extending around a portion of the circumference of the bar, and relative motion between the tools is effected in mutually opposed directions perpendicular to the longitudinal dimension of the bar so as to split the bar by shearing.
Claim 5
Dependent Claim
50 words
A method as claimed in claim 1, in which the end portion of the bar is enclosed in a duct so arranged that such end of the bar projects from the duct, and a wedge is driven longitudinally into such end of the bar to effect splitting of the same.
Claim 6
Dependent Claim
32 words
A method as claimed in claim 4, in which relative motion between the bar and the duct is effected so that the split parts can deflect laterally in front of the wedge.
References Cited (Backward Citations)
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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) | 1980-08-08 | 1981-02-07 | 1981-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-08 | 1985-02-07 | 1985-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-08 | 1989-02-07 | 1989-08-09 | $7700.00 | Window Closed / Lapsed |