US5254034A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable width louver
Assignee: PENN ACQUISTION CORP
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Filing: 1991-04-25
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Granted: 1993-10-19
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Expires: 2011-04-25
Abstract
Abstract An adjustable louver includes a longitudinally spaced pair of side frame numbers, a spaced apart pair of end members extending between the side members and including inner and outer submembers slidably engaging to extend or telescope through a continuum of positions respecting one another and blades extending between the side members with each blade including blade members which slidably engage to extend substantially through the continuum of positions through which said end members are extendable.
Inventors
- 👤 Ronald A. Roth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:58
CPC Classifications
F; F24; F24F; F24F13/00; F24F13/08
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
158 words
A horizontally adjustable louver, comprising: a. horizontally spaced vertically extending side members movable horizontally within a continuum of positions; b. vertically spaced two-piece telescoping top and bottom members extending horizontally between said side members, respective first and second pieces of said top and bottom members being interchangeable; and c. telescopingly engaging pairs of blade members extending between said side members, said blade members being interchangeable and each blade member comprising: i. a horizontally elongated web formed along one horizontally extending edge of said blade member and defining a blade member vertical extremity; ii. a horizontally elongated hook formed along a second horizontally extending edge of said blade member and defining a blade member second vertical extremity; iii. respective hook portions of each blade member of a pair slidably receiving webs of the paired blade member; iv. respective hook portions of respective blade members of a pair defining respective upper and lower vertical extremities of said paired blade members.
Claim 2
Dependent Claim
158 words
A horizontally adjustable louver, comprising: a. horizontally spaced vertically extending side members movable horizontally within a continuum of positions; b. vertically spaced two-piece telescoping top and bottom members extending horizontally between said side members, respective first and second pieces of said top and bottom members being interchangeable; and c. telescopingly engaging pairs of blade members extending between said side members, said blade members being interchangeable and each blade member comprising: i. a horizontally elongated web formed along one horizontally extending edge of said blade member and defining a blade member vertical extremity; ii. a horizontally elongated hook formed along a second horizontally extending edge of said blade member and defining a blade member second vertical extremity; iii. respective hook portions of each blade member of a pair slidably receiving webs of the paired blade member; iv. respective hook portions of respective blade members of a pair defining respective upper and lower vertical extremities of said paired blade members.
Claim 3
Dependent Claim
24 words
The louver of claim 1 wherein respective outer telescoping pieces and respective inner telescoping pieces of said respective top and bottom members are identical.
Claim 4
Dependent Claim
16 words
The louver of claim 2 wherein said blade members of a telescopingly engaging pair are identical.
Claim 5
Dependent Claim
16 words
The louver of claim 1 wherein said blade members of a telescopingly engaging pair are identical.
Claim 6
Dependent Claim
20 words
The louver of claim 4 wherein central portions of said blade members between said hook and web are substantially planar.
Claim 7
Dependent Claim
17 words
The louver of claim 5 wherein central portions of said blade members are skew to said webs.
Claim 8
Dependent Claim
16 words
The louver of claim 6 wherein central portions are substantially at 45 degrees to said webs.
Claim 9
Dependent Claim
10 words
The louver of claim 7 wherein said webs extend vertically.
Claim 10
Dependent Claim
11 words
The louver of claim 8 wherein said hooks are open vertically.
Claim 11
Dependent Claim
46 words
The louver of claim 7 wherein said central portions of said blade members have vertically contiguous respective first, second and third portions, said second portions being substantially perpendicular to said first portions and said third portions being skew to both said first and said second portions.
Claim 12
Dependent Claim
69 words
The louver of claim 7 wherein said blade member central portions are defined by vertically contiguous first, second and third portions with said first and third portions being parallel and with first and third portions of respective blade members of a pair being disposed for sliding complemental contact with respective third and first parties of a remaining blade of said pair as horizontal width of said louver is adjusted.
Claim 13
Dependent Claim
94 words
The louver of claim 1 wherein said blade members of a telescopingly engaging pair are identical; members between said hook and web are substantially planar and skew to said webs; wherein said blade member central portions are defined by vertically contiguous first, second and third portions with said first and third portions being parallel and with first and third portions of respective blade members of a pair being disposed for sliding complemental contact with respective third and first parties of a remaining blade of said pair as horizontal width of said louver is adjusted.
Claim 14
Dependent Claim
144 words
A horizontally adjustable louver, comprising: a. horizontally spaced vertically extending side members movable horizontally within a continuum of positions; b. vertically spaced telescoping top and bottom members extending horizontally between said side members; and c. telescopingly engaging pairs of blade members extending between said side members, said blade members being interchangeable and each blade member comprising: i. a horizontally elongated web formed along one horizontally extending edge of said blade member and defining a blade member vertical extremity; ii. a horizontally elongated hook formed along a second horizontally extending edge of said blade member and defining a blade member second vertical extremity; iii. respective hook portions of each blade member of a pair slidably receiving webs of the paired blade member; iv. respective hook portions of respective blade members of a pair defining respective upper and lower vertical extremities of said paired blade members.
Claim 15
Dependent Claim
144 words
A horizontally adjustable louver, comprising: a. horizontally spaced vertically extending side members movable horizontally within a continuum of positions; b. vertically spaced telescoping top and bottom members extending horizontally between said side members; and c. telescopingly engaging pairs of blade members extending between said side members, said blade members being interchangeable and each blade member comprising: i. a horizontally elongated web formed along one horizontally extending edge of said blade member and defining a blade member vertical extremity; ii. a horizontally elongated hook formed along a second horizontally extending edge of said blade member and defining a blade member second vertical extremity; iii. respective hook portions of each blade member of a pair slidably receiving webs of the paired blade member; iv. respective hook portions of respective blade members of a pair defining respective upper and lower vertical extremities of said paired blade members.
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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) | 1996-10-18 | 1997-04-19 | 1997-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-10-18 | 2001-04-19 | 2001-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-10-18 | 2005-04-19 | 2005-10-19 | $7700.00 | Window Closed / Lapsed |