US3374499A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hinge with a pair of parallel pivots
Assignee: McKinney Manufacturing Co
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Filing: 1966-09-12
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Granted: 1968-03-26
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Expires: 1986-09-12
Abstract
No abstract record available.
Inventors
- 👤 Robert L Horstman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:12
CPC Classifications
E; E05; E05D; E05D3/00; E05D3/06; E05D3/12; E05D3/122; E05Y; E05Y2201/00; E05Y2201/60; E05Y2201/622; E05Y2201/71
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
A HINGE COMPRISING A CHANNEL HAVING A WEB AND SIDE FLANGES, THE INNER SIDES OF SAID FLANGES BEING PROVIDED WITH LONGITUDINAL RACK TEETH, A PIVOT BAR DISPOSED INSIDE THE CHANNEL LENGTHWISE THEREOF AND SPACED THEREFROM, THE BAR HAVING CYLINDRICAL EDGE PORTIONS ADJACENT SAID FLANGES FORMING PARALLEL PIVOT PINS, A PAIR OF OPPOSED HINGE LEAVES EXTENDING OUTWARDLY AWAY FROM THE OPEN SIDE OF THE CHANNEL, AND A TRANSVERSELY ARCUATE BARREL SEGMENT EXTENDING LENGTHWISE ALONG THE INNER EDGE OF EACH HINGE LEAF AND JOINED THERETO, THE BARREL SEGMENTS BEING DISPOSED IN SAID CHANNEL BETWEEN SAID FLANGES AND PIVOT BAR AND FITTING PART AWAY AROUND SAID PIVOT PINS FOR ROTATION THEREON, AND THE OUTSIDE OF SAID BARREL SEGMENTS BEING PROVIDED WITH LONGITUDINAL GEAR TEETH MESHING WITH SAID RACK TEETH, WHEREBY WHEN SAID HINGE LEAVES ARE SWUNG APART THE BARREL SEGMENTS WILL MOVE THE CHANNEL WEB AWAY FROM THE SEGMENTS.
Claim 2
Dependent Claim
146 words
A HINGE COMPRISING A CHANNEL HAVING A WEB AND SIDE FLANGES, THE INNER SIDES OF SAID FLANGES BEING PROVIDED WITH LONGITUDINAL RACK TEETH, A PIVOT BAR DISPOSED INSIDE THE CHANNEL LENGTHWISE THEREOF AND SPACED THEREFROM, THE BAR HAVING CYLINDRICAL EDGE PORTIONS ADJACENT SAID FLANGES FORMING PARALLEL PIVOT PINS, A PAIR OF OPPOSED HINGE LEAVES EXTENDING OUTWARDLY AWAY FROM THE OPEN SIDE OF THE CHANNEL, AND A TRANSVERSELY ARCUATE BARREL SEGMENT EXTENDING LENGTHWISE ALONG THE INNER EDGE OF EACH HINGE LEAF AND JOINED THERETO, THE BARREL SEGMENTS BEING DISPOSED IN SAID CHANNEL BETWEEN SAID FLANGES AND PIVOT BAR AND FITTING PART AWAY AROUND SAID PIVOT PINS FOR ROTATION THEREON, AND THE OUTSIDE OF SAID BARREL SEGMENTS BEING PROVIDED WITH LONGITUDINAL GEAR TEETH MESHING WITH SAID RACK TEETH, WHEREBY WHEN SAID HINGE LEAVES ARE SWUNG APART THE BARREL SEGMENTS WILL MOVE THE CHANNEL WEB AWAY FROM THE SEGMENTS.
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) | 1971-03-26 | 1971-09-25 | 1972-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-26 | 1975-09-25 | 1976-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-26 | 1979-09-25 | 1980-03-26 | $7700.00 | Window Closed / Lapsed |