Patent US3889315A successfully refreshed from Google Patents.
US3889315A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety door hinge
Assignee: Individual
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Filing: 1974-04-15
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Granted: 1975-06-17
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Expires: 1994-04-15
Abstract
Abstract A compound safety hinge for folding doors comprises a pair of elongated vertical stationary horizontally-slotted tubular connectors each having therein an elongated sleeve insert which is pivotal through an angle limited by the length of the slots, typically through 90*. One vertical edge of each door panel is fastened to one edge of an elongated casing. The other edge of each casing abuts against one of the stationary tubular connectors and is fastened to the pivotal insert by fastening pins or screws which extend through the slots in the stationary connector. Each stationary tubular connector is provided with an outward flange which mates with, and is connected to, the flange of the other stationary tubular connector. The lower end of the pivotal tubular insert is provided with an outward annular flange which serves as a bearing support for the stationary tubular connector.
Inventors
- 👤 Wilfred Stouffer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:25
CPC Classifications
E; E06; E06B; E06B7/00; E06B7/28; E06B7/36; E06B7/362; E05; E05D; E05D1/00; E05D1/04; E05Y; E05Y2900/00; E05Y2900/10; E05Y2900/13; E05Y2900/132; E06B2007/365
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
105 words
A door hinge comprising: a. an elongated vertical stationary tubular connector having horizontal slots at spaced intervals along the length of said connector; b. an elongated cylindrical insert pivotal within said stationary connector; c. an elongated vertical support casing having means along one edge for receiving an edge of door panel and having means along its opposite edge for receiving said stationary tubular connector; d. fastening means extending through said slots in said stationary tubular connector for fastening said casing to said pivotal cylindrical insert; e. elongated flange means extending radially from said stationary tubular connector for securing said connector to an adjacent stationary support.
Claim 2
Dependent Claim
105 words
A door hinge comprising: a. an elongated vertical stationary tubular connector having horizontal slots at spaced intervals along the length of said connector; b. an elongated cylindrical insert pivotal within said stationary connector; c. an elongated vertical support casing having means along one edge for receiving an edge of door panel and having means along its opposite edge for receiving said stationary tubular connector; d. fastening means extending through said slots in said stationary tubular connector for fastening said casing to said pivotal cylindrical insert; e. elongated flange means extending radially from said stationary tubular connector for securing said connector to an adjacent stationary support.
Claim 3
Dependent Claim
17 words
A door hinge according to claim 1 wherein said elongated cylindrical pivotal insert is a tubular sleeve.
Claim 4
Dependent Claim
33 words
A door hinge according to claim 2 wherein the lower end of said elongated pivotal tubular sleeve insert is provided with an outwardly extending flange on which said stationary tubular connector is supported.
Claim 5
Dependent Claim
43 words
A door hinge according to claim 2 wherein said means along said one edge of said support casing for receiving an edge of a panel door comprises a recess formed by pair of opposed flanges which extend from the body of said casing.
Claim 6
Dependent Claim
38 words
A door hinge according to claim 4 wherein said means along said other edge of said support casing for receiving the tubular stationary connector comprises a surface having a curvature corresponding to that of said tubular stationary connector.
Claim 7
Dependent Claim
159 words
A compound hinge for folding doors comprising: A. First and second hinge assemblies, each assembly comprising: a. an elongated vertical stationary tubular connector having elongated flange means extending outwardly thereform and having horizontal slots in its wall at spaced intervals therealong; b. an elongated cylindrical member inserted for pivotal movement within said stationary connector; c. a door-panel support casing having a recess along one edge for receiving an edge of a door panel and having an arcuate surface along its other edge having a curvature corresponding to that of said stationary tubular connector for receiving said tubular connector; and d. fastening means extending through said slots in said stationary tubular connector for fastening said casing to said cylindrical insert, aNd for allowing pivotal movement of said casing relative to said stationary connector through an angle limited by the length of said slots. B. Fastening means for fastening together the elongated flange means of said first and second hinge assemblies.
Claim 8
Dependent Claim
159 words
A compound hinge for folding doors comprising: A. First and second hinge assemblies, each assembly comprising: a. an elongated vertical stationary tubular connector having elongated flange means extending outwardly thereform and having horizontal slots in its wall at spaced intervals therealong; b. an elongated cylindrical member inserted for pivotal movement within said stationary connector; c. a door-panel support casing having a recess along one edge for receiving an edge of a door panel and having an arcuate surface along its other edge having a curvature corresponding to that of said stationary tubular connector for receiving said tubular connector; and d. fastening means extending through said slots in said stationary tubular connector for fastening said casing to said cylindrical insert, aNd for allowing pivotal movement of said casing relative to said stationary connector through an angle limited by the length of said slots. B. Fastening means for fastening together the elongated flange means of said first and second hinge assemblies.
Claim 9
Dependent Claim
17 words
A compound door hinge according to claim 6 wherein said elongated cylindrical insert is a tubular member.
Claim 10
Dependent Claim
18 words
A compound door hinge according to claim 7 wherein said fastening means extending through said slots are pins.
Claim 11
Dependent Claim
21 words
A compound door hinge according to claim 8 wherein said stationary tubular connectors and said tubular pivotal insert are extruded aluminum.
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) | 1978-06-16 | 1978-12-16 | 1979-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-16 | 1982-12-16 | 1983-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-16 | 1986-12-16 | 1987-06-17 | $7700.00 | Window Closed / Lapsed |