US3991533A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Louver assembly
Assignee: YKK Corp
•
Filing: 1975-08-06
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Granted: 1976-11-16
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Expires: 1995-08-06
Abstract
Abstract A combination louver and window sash assembly includes a plurality of louver boards extending horizontally and each having a cross-section of substantially inverted-Y shape. A pair of parallel, vertical sash frames having vertically extending slots faced in opposed relation to one another and including pairs of cutout recesses formed in the marginal edges of the slots. The louver boards have their horizontal ends thrusted resiliently through the slots and received snappingly in the cutout recesses.
Inventors
- 👤 Mitsuo Nagase
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:54
CPC Classifications
E; E06; E06B; E06B7/00; E06B7/02; E06B7/08; E06B7/082
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
176 words
A combination louver and window assembly, comprising: a. a pair of vertical stiles having vertically extending slots facing each other; b. three parallel rails, one joining the upper ends of said stiles, one joining intermediate points on said stiles, and one joining the lower ends of said stiles; c. a panel encircled by and received within a portion of said vertical stiles, within the intermediate one of said rails and one of the other of said rails; d. said stiles, remotely from said panel, having opposed pairs of vertically aligned recesses in the marginal edges defining said slots, said pairs being vertically spaced, said recesses being symmetrical in shape relative to the vertical slots; and e. a plurality of horizontal louver boards held at opposite ends in opposed pairs of said recesses in said vertical stiles, and disposed between said intermediate rail and the other of said rails, said louver boards having a cross-section of inverted Y-shaped configuration having two downwardly extending legs fitting into a pair of said opposed symmetrical recesses, and an upwardly extending
Claim 2
Dependent Claim
176 words
A combination louver and window assembly, comprising: a. a pair of vertical stiles having vertically extending slots facing each other; b. three parallel rails, one joining the upper ends of said stiles, one joining intermediate points on said stiles, and one joining the lower ends of said stiles; c. a panel encircled by and received within a portion of said vertical stiles, within the intermediate one of said rails and one of the other of said rails; d. said stiles, remotely from said panel, having opposed pairs of vertically aligned recesses in the marginal edges defining said slots, said pairs being vertically spaced, said recesses being symmetrical in shape relative to the vertical slots; and e. a plurality of horizontal louver boards held at opposite ends in opposed pairs of said recesses in said vertical stiles, and disposed between said intermediate rail and the other of said rails, said louver boards having a cross-section of inverted Y-shaped configuration having two downwardly extending legs fitting into a pair of said opposed symmetrical recesses, and an upwardly extending
Claim 3
Dependent Claim
32 words
A combination louver and window assembly according to claim 1, each said louver board having a flashing of upwardly pointing arrow-head configuration extending along the upper edge of said upwardly extending leg.
Claim 4
Dependent Claim
30 words
A combination louver and window assembly according to claim 1, each said louver board having drip lips extending toward each other along the lower ends of said downwardly extending legs.
Claim 5
Dependent Claim
51 words
A combination louver and window assembly according to claim 1, the one of said rails lying just above said louver boards having elongated flanges corresponding to the legs of said inverted Y-shaped configuration and disposed at opposite sides of said upwardly extending leg of the uppermost one of said louver boards.
Claim 6
Dependent Claim
51 words
A combination louver and window assembly according to claim 1, the one of said rails lying just below said louver boards having an elongated flange corresponding to the upwardly extending leg of said inverted Y-shaped configuration and disposed between the downwardly extending legs of the lowermost one of said louver boards.
Claim 7
Dependent Claim
28 words
A combination louver and window assembly according to claim 1, said rails being held in further symmetrical recesses of complemental configuration in said marginal edges of said stiles.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-11-16 | 1980-05-17 | 1980-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-11-16 | 1984-05-17 | 1984-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-11-16 | 1988-05-17 | 1988-11-16 | $7700.00 | Window Closed / Lapsed |