Patent US4688767A successfully refreshed from Google Patents.
US4688767A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Louvered wall
Assignee: Individual
•
Filing: 1986-08-28
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Granted: 1987-08-25
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Expires: 2006-08-28
Abstract
Abstract A louvered wall is formed of spaced stacks of thin masonry blocks with elongated louvers disposed between adjacent blocks and extending longitudinally of the wall through several stacks of blocks. The middle longitudinal region of each louver is higher than its longitudinal edge regions and the upper and lower surfaces of the blocks are shaped to conform to the cross-sectional configuration of the louvers to lock the blocks and louvers against transverse movement.
Inventors
- 👤 Richard J. Bradshaw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:45
CPC Classifications
E; E06; E06B; E06B7/00; E06B7/02; E06B7/08; E06B7/082; E04; E04C; E04C1/00; E04C1/39; E04C1/395
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
97 words
A louvered wall comprising spaced stacks of masonry blocks and a plurality of louvers extending longitudinally of the wall in vertical spaced relationship with each louver passing between a pair of blocks in a least two stacks of blocks, each said louver being characterized by having a middle longitudinal region which is raised with respect to the longitudinal edge regions thereof and the middle region has a convex upper surface and the edge regions have concave upper surfaces, and the blocks being characterized by having upper and lower surfaces corresponding to the cross-sectional configuration of said louvers.
Claim 2
Dependent Claim
97 words
A louvered wall comprising spaced stacks of masonry blocks and a plurality of louvers extending longitudinally of the wall in vertical spaced relationship with each louver passing between a pair of blocks in a least two stacks of blocks, each said louver being characterized by having a middle longitudinal region which is raised with respect to the longitudinal edge regions thereof and the middle region has a convex upper surface and the edge regions have concave upper surfaces, and the blocks being characterized by having upper and lower surfaces corresponding to the cross-sectional configuration of said louvers.
Claim 3
Dependent Claim
44 words
The wall of claim 1 further characterized in that the radius of curvature of the upper surface of the middle region of each louver is equal but opposite to the radius of curvature of the upper surface of each edge region of each louver.
Claim 4
Dependent Claim
27 words
The wall of claim 1 further characterized in that each louver in cross-section ressembles two opposite S-curves joined end to end at the centerline of the louver.
Claim 5
Dependent Claim
58 words
The wall of claim 1 further characterized in that the wall has at least two runs at an angle to each other and the ends of the louvers in one run at the junction of the runs are carried by blocks which are integrally formed with adjoining blocks supporting the ends of the louvers in the other run.
References Cited (Backward Citations)
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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) | 1990-08-24 | 1991-02-23 | 1991-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-08-24 | 1995-02-23 | 1995-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-08-24 | 1999-02-23 | 1999-08-25 | $7700.00 | Window Closed / Lapsed |