US4140357A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric hinge
Assignee: FA ACQUISITION Inc
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Filing: 1977-12-28
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Granted: 1979-02-20
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Expires: 1997-12-28
Abstract
Abstract A hinge for use with a swinging door provided with an electric lock or other electrically operated device or component therein in which the hinge is provided with chases and hollow hinge barrels sheathing a tubular collar which also serves as a hinge pin and provides a continuous passageway through the hinge for electrical conductors in order to maintain a continuous circuit or circuits through the hinge regardless of the position of the door. Each hinge leaf includes a barrel integral therewith with the barrel and leaf being a one-piece casting. The barrels completely enclose the tubular collar which forms a hollow hinge pin and protects the electrical conductors from attack in the event the leaves and barrels are pried apart.
Inventors
- 👤 Francis T. Wolz
- 👤 Lawrence D. Butts
- 👤 Raymond V. Kambic
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:28
CPC Classifications
E; E05; E05D; E05D11/00; E05D11/0081; H; H01; H01R; H01R35/00; H01R35/02; E05Y; E05Y2900/00; E05Y2900/10; E05Y2900/13; E05Y2900/132; H01H; H01H3/00; H01H3/02; H01H3/16; H01H3/161; H01H3/162
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
113 words
A hinge for pivotally connecting a pair of relatively swingable members and enabling passage of continuous electrical conductor means from one member to the other, said hinge comprising a pair of hinge leaves with each leaf including an attaching plate and a hinge barrel along a portion of one edge thereof, each leaf including a chase communicating the interior of the hinge barrel with the face of the plate engaged with the member to which it is attached, and a tubular collar bridging aligned hinge barrels and forming a hinge pin therefor with the ends of the collar terminating inwardly of said chases thereby providing a continuous passageway for the electrical conductor means.
Claim 2
Dependent Claim
113 words
A hinge for pivotally connecting a pair of relatively swingable members and enabling passage of continuous electrical conductor means from one member to the other, said hinge comprising a pair of hinge leaves with each leaf including an attaching plate and a hinge barrel along a portion of one edge thereof, each leaf including a chase communicating the interior of the hinge barrel with the face of the plate engaged with the member to which it is attached, and a tubular collar bridging aligned hinge barrels and forming a hinge pin therefor with the ends of the collar terminating inwardly of said chases thereby providing a continuous passageway for the electrical conductor means.
Claim 3
Dependent Claim
40 words
The structure as defined in claim 1 wherein said collar is rigidly affixed to one of said hinge barrels and is of thin-walled hard material to protect the electrical conductor means even if the leaves and barrels are pried apart.
Claim 4
Dependent Claim
28 words
The structure as defined in claim 1 wherein said electrical conductor means includes a plurality of insulated electric wires having high resistance to repetitive twisting, flexing and bending.
Claim 5
Dependent Claim
24 words
The structure as defined in claim 1 wherein said collar has one end portion being press-fitted into the barrel and thereby rigidly affixed thereto.
Claim 6
Dependent Claim
24 words
The structure as defined in claim 1 wherein said hinge barrels have closed outer ends thereby concealing said collar and said electrical conductor means.
Claim 7
Dependent Claim
46 words
The structure as defined in claim 1 wherein one of said members is a door jamb and the other is a door and the electrical conductor means includes a plurality of electric wires to enable operation of an electric door lock, monitoring devices, and the like.
Claim 8
Dependent Claim
63 words
The structure as defined in claim 4 wherein said hinge barrels have closed outer ends thereby concealing said collar and said electrical conductor means and one of said members is a door jamb and the other is a door and the electrical conductor means includes a plurality of electric wires to enable operation of an electric door lock, monitoring devices, and the like.
References Cited (Backward Citations)
US3860312A
Cited
US3838234A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-02-19 | 1982-08-21 | 1983-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-02-19 | 1986-08-21 | 1987-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-02-19 | 1990-08-21 | 1991-02-20 | $7700.00 | Window Closed / Lapsed |