Patent US4168922A successfully refreshed from Google Patents.
US4168922A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Frame jointing assembly and the like
Assignee: Individual
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Filing: 1977-06-01
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Granted: 1979-09-25
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Expires: 1997-06-01
Abstract
Abstract A corner structure for use in assembling and dismantling frames for screens, etc., includes two extruded members to be joined to each other at a 90° angle and a corner piece. Each extruded member has an X-shaped cross section with lips at the ends of the cross members forming lipped channels. The corner piece is in the shape of a right triangle and is provided with pairs of flanges extending longitudinally along two sides of the triangle. The flanges are longitudinally insertable into the lipped channels.
Inventors
- 👤 Anthony C. Worrallo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:28
CPC Classifications
F; F16; F16B; F16B12/00; F16B12/44; Y; Y10; Y10T; Y10T403/00; Y10T403/46; Y10T403/4602; Y10T403/70; Y10T403/7062; Y10T403/7064; Y10T403/7066; Y10T403/76
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
129 words
A connecting device for connecting angularly oriented structural members of the type having longitudinally extending slots with each slot bounded by two flanges, comprising two, generally planar elements with opposed first and second faces, each of said elements having two grooves formed in its first face adjacent and generally parallel to, but spaced from, adjacent edges thereof, said grooves of each element intersecting at an angle of less than 180; wedge means comprising a wedge member for insertion between said elements and in a plane generally parallel to said elements when said elements are generally parallel to each other with said second faces facing toward each other, with said first faces facing away from each other and with said grooves overlapping, to force said elements away from each other.
Claim 2
Dependent Claim
129 words
A connecting device for connecting angularly oriented structural members of the type having longitudinally extending slots with each slot bounded by two flanges, comprising two, generally planar elements with opposed first and second faces, each of said elements having two grooves formed in its first face adjacent and generally parallel to, but spaced from, adjacent edges thereof, said grooves of each element intersecting at an angle of less than 180; wedge means comprising a wedge member for insertion between said elements and in a plane generally parallel to said elements when said elements are generally parallel to each other with said second faces facing toward each other, with said first faces facing away from each other and with said grooves overlapping, to force said elements away from each other.
Claim 3
Dependent Claim
14 words
A connecting device according to claim 1, wherein said wedge member is generally planar.
Claim 4
Dependent Claim
52 words
A connecting device according to claim 2, wherein each second face has a generally L-shaped step formed therein to provide raised face portions adjacent said adjacent element edges and a lower face portion remote from said adjacent element edges, and has triangular inclined ramp surfaces linking its raised and lower face portions.
Claim 5
Dependent Claim
18 words
A connecting device according to claim 3, wherein said wedge member is generally planar and triangular in shape.
Claim 6
Dependent Claim
13 words
A connecting device according to claim 1, wherein said angle is approximately 90°.
Claim 7
Dependent Claim
141 words
A connecting device according to claim 1, in combination with first and second structural members, each of said structural members has a longitudinally extending slot bounded by opposed edges of two flanges, one end of said second structural members abuts a longitudinally extending face of said first structural member so that said structural members form an angle with said slots intersecting to form a continuous, angled slot; said elements are mounted in said slots and are parallel to each other with said first faces facing away from each other and said second faces facing each other, each groove of each element receiving a flange of a different structural member; and said wedge member is located between and parallel to said elements, and is substantially coextensive therewith to force said elements outwardly to lock said elements and said structural members in place.
Claim 8
Dependent Claim
49 words
A connecting device according to claim 1, wherein each second face has a step formed therein to provide a raised face portion adjacent said adjacent element edges and a lower face portion remote from said adjacent element edges, and inclined ramp surfaces linking its raised and lower face portions.
Claim 9
Dependent Claim
46 words
A connecting device according to claim 7, wherein each of said inclined ramp surfaces is triangular in shape and has one edge coextensive with an edge of said raised face portion and another edge coextensive with an edge of said lower face portion of its element.
Claim 10
Dependent Claim
44 words
A connecting device according to claim 1, wherein said wedge member is in the form of a trapezoid having a long edge, a short edge parallel to the long edge, and two further edges which converge from said long edge towards said short edge.
References Cited (Backward Citations)
US3669479A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-09-24 | 1983-03-26 | 1983-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-09-24 | 1987-03-26 | 1987-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-09-24 | 1991-03-26 | 1991-09-25 | $7700.00 | Window Closed / Lapsed |