Patent US3678237A successfully refreshed from Google Patents.
US3678237A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-aligning jaw contact
Assignee: ABB Inc USA
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Filing: 1971-01-18
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Granted: 1972-07-18
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Expires: 1991-01-18
Abstract
Abstract A jaw contact for receiving a relatively movable contact blade. The jaw contact consists of two elongated contact members supported on the opposite sides of a stationary support and are connected to the stationary support through two spaced pivots and contact points which are spaced from one another in the direction of elongation of the contact members. Biasing forces are applied to the side members at two axially spaced locations; one between the spaced pivot points; and the second being on the opposite side of the pivot point adjacent the jaw contact opening.
Inventors
- 👤 Frank J Rickert
- 👤 Frank J Pokorny
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:59
CPC Classifications
H; H01; H01H; H01H1/00; H01H1/12; H01H1/36; H01H1/42; H02; H02B; H02B11/00; H02B11/02; H02B11/04
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
234 words
A self-aligning jaw contact structure for cooperating with an elongated blade contact relatively movable into and out of contact engagement with said jaw contact structure; said jaw contact structure comprising, in combination: an elongated support blade; a pair of jaw blade contacts disposed adjacent the opposing surfaces of said elongated support blade and extending beyond one end of said elongated support blade to define a jaw contact gap adapted to receive said elongated blade contact; biasing means connected to said pair of jaw blade contacts for biasing said pair of jaw blade contacts toward said elongated support blade and into high pressure contact engagement therewith; and first and second pairs of contact pivot supports interposed between said pair of jaw blade contacts and said elongated support blade; said first and second pairs of contact pivot supports being longitudinally spaced from one another in the direction of elongation of said elongated support blade; said second pair of contact pivot supports being disposed between said jaw contact gap and said first pair of contact pivot supports; said biasing means including first and second spring bias means applied to first and second longitudinal locations, respectively, on said pair of jaw blade contacts; said first longitudinal location being disposed between said first and second pairs of contact pivot supports; said second longitudinal location being disposed between said jaw contact gap and said second pair of contact pivot supports.
Claim 2
Dependent Claim
234 words
A self-aligning jaw contact structure for cooperating with an elongated blade contact relatively movable into and out of contact engagement with said jaw contact structure; said jaw contact structure comprising, in combination: an elongated support blade; a pair of jaw blade contacts disposed adjacent the opposing surfaces of said elongated support blade and extending beyond one end of said elongated support blade to define a jaw contact gap adapted to receive said elongated blade contact; biasing means connected to said pair of jaw blade contacts for biasing said pair of jaw blade contacts toward said elongated support blade and into high pressure contact engagement therewith; and first and second pairs of contact pivot supports interposed between said pair of jaw blade contacts and said elongated support blade; said first and second pairs of contact pivot supports being longitudinally spaced from one another in the direction of elongation of said elongated support blade; said second pair of contact pivot supports being disposed between said jaw contact gap and said first pair of contact pivot supports; said biasing means including first and second spring bias means applied to first and second longitudinal locations, respectively, on said pair of jaw blade contacts; said first longitudinal location being disposed between said first and second pairs of contact pivot supports; said second longitudinal location being disposed between said jaw contact gap and said second pair of contact pivot supports.
Claim 3
Dependent Claim
48 words
The self-aligning jaw contact structure of claim 1 wherein the moment of force of said second spring bias means about said second pair of contact pivot supports is greater than the moment of force of said first spring bias means about said second pair of contact pivot supports.
Claim 4
Dependent Claim
28 words
The self-aligning jaw contact structure of claim 1 wherein said first and second pairs of contact pivot supports are defined by integral projections of said elongated support blade.
Claim 5
Dependent Claim
30 words
The self-aligning jaw contact structure of claim 1 wherein said first and second pairs of contact pivot supports are defined by integral projections of said pair of jaw blade contacts.
Claim 6
Dependent Claim
28 words
The self-aligning jaw contact structure of claim 2 wherein said first and second pairs of contact pivot supports are defined by integral projections of said elongated support blade.
Claim 7
Dependent Claim
30 words
The self-aligning jaw contact structure of claim 2 wherein said first and second pairs of contact pivot supports are defined by integral projections of said pair of jaw blade contacts.
References Cited (Backward Citations)
US2265006A
Cited
US2300893A
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US2751471A
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US2891134A
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US3201556A
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US3328550A
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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) | 1975-07-18 | 1976-01-17 | 1976-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-18 | 1980-01-17 | 1980-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-18 | 1984-01-17 | 1984-07-18 | $7700.00 | Window Closed / Lapsed |