US4115970A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grid ceiling trim intersection cap
Assignee: HELVIE PLASTIC EXTRUSIONS
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Filing: 1977-09-01
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Granted: 1978-09-26
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Expires: 1997-09-01
Abstract
Abstract An intersection cap for covering the ends of a plurality of pieces of grid celing trim mounted on grid ceiling supports where such supports intersect, usually at right angles, includes a base member, usually cruciform in shape, but sometimes readily convertible to T-shape, for covering the horizontal surfaces of the trim and of any exposed support, wall members extending upwardly from the base member, for covering the sides of the trim and of any exposed support and opposed retainers located at tapered portions of the walls at the ends thereof and beyond the base member which readily, yet firmly, snap fasten onto the trim. Also described is the injection molding of such intersection caps in which the mold parts are moved together in simple linear relative motion to obviate the employment of complex mold part motions to form suitable retainers integral with the walls of the intersection cap.
Inventors
- 👤 Roger Neil Weinar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:09
CPC Classifications
E; E04; E04B; E04B9/00; E04B9/06; E04B9/12; E04B9/14; E04B2009/062; Y; Y10; Y10T; Y10T403/00; Y10T403/46; Y10T403/70; Y10T403/7001; Y10T403/7003
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
76 words
An intersection cap for covering ends of a plurality of pieces of grid ceiling trim mounted on grid ceiling supports where such intersect which comprises a substantially horizontal base member and a plurality of wall members extending upwardly from the base member, said wall members being tapered upwardly away from the base member at ends of the wall members and having at said extended tapered ends inwardly extending retainers suitable for holding onto grid ceiling trim.
Claim 2
Dependent Claim
76 words
An intersection cap for covering ends of a plurality of pieces of grid ceiling trim mounted on grid ceiling supports where such intersect which comprises a substantially horizontal base member and a plurality of wall members extending upwardly from the base member, said wall members being tapered upwardly away from the base member at ends of the wall members and having at said extended tapered ends inwardly extending retainers suitable for holding onto grid ceiling trim.
Claim 3
Dependent Claim
94 words
An intersection cap according to claim 1 which is of integral construction and wherein the base member is substantially flat, the plurality of wall members extend substantially at right angles to the base member, the tapers at the ends of the wall members are of substantially the same angle and make an angle of less than 45° with respect to an extended plane of the base member and the retainers are located past the base member ends and in opposing relationship and extend inwardly distances greater than the thickness of the grid ceiling trim.
Claim 4
Dependent Claim
68 words
An intersection cap according to claim 2 which is made of a synthetic organic polymeric plastic of sufficient resilience so that it snaps into place on the grid ceiling trim in such manner that matching retainers are moved toward the base and outwardly as the intersection cap is moved into place on the trim and return to original and retaining position when the intersection cap is in place.
Claim 5
Dependent Claim
41 words
An intersection cap according to claim 3 wherein the base is cruciform or T-shaped, the retainers extend inwardly distances less than the cap wall height and the tapers at the ends of the wall members are of angles less than 40°.
Claim 6
Dependent Claim
19 words
An intersection cap according to claim 4 in which the base is cruciform in shape with curved internal corners.
Claim 7
Dependent Claim
67 words
An intersection cap according to claim 1 wherein the base is cruciform and is weakened along a line extending longitudinally with respect to the grid ceiling support and grid ceiling trim on which it is to be mounted so that upon separating the intersection cap into two parts along said line there is produced from the cruciform cap a T-shaped cap suitable for installation along room walls.
Claim 8
Dependent Claim
64 words
An intersection cap according to claim 5 wherein the base is weakened along a line extending longitudinally with respect to the grid ceiling support and grid ceiling trim on which it is to be mounted so that upon separating the intersection cap into two parts along said line there is produced from the cruciform cap a T-shaped cap suitable for installation along room walls.
Claim 9
Dependent Claim
25 words
An intersection cap according to claim 7 wherein the scoring or weakening is of an upper surface of the intersection cap and is molded therein.
References Cited (Backward Citations)
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Cited
US2860742A
Cited
US3004639A
Cited
US3119475A
Cited
US3343309A
Cited
US3855747A
Cited
US4055930A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-09-25 | 1982-03-27 | 1982-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-09-25 | 1986-03-27 | 1986-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-09-25 | 1990-03-27 | 1990-09-26 | $7700.00 | Window Closed / Lapsed |