Patent US4463639A successfully refreshed from Google Patents.
Patent US4541328A successfully refreshed from Google Patents.
US4541328A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Damper seal apparatus
Assignee: Ruskin Co
•
Filing: 1984-02-06
•
Granted: 1985-09-17
•
Expires: 2004-02-06
Abstract
Abstract In general, a sealing apparatus for substantially preventing the flow of air through a damper assembly having a plurality of movable vanes includes a first, rigid sealing member having a generally circular cross-section and adapted to be attached to a first edge of a first movable vane. The first edge is movable through a first arc between a damper-open position and a damper-closed position. A second resilient sealing member has a generally rectangular cross-section and is adapted to be attached to a second edge of a second movable vane. The second edge is movable through a second arc between the damper-open and damper-closed positions. The sealing members make substantially line contact one with the other as the edges are moved toward the damper-closed position and are in substantially gas flow-preventing area contact one with the other when the vanes are in the damper-closed position.
Inventors
- 👤 Donald E. Brzezinski
- 👤 Christy C. Kadue
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:25
CPC Classifications
F; F24; F24F; F24F13/00; F24F13/08; F24F13/10; F24F13/14; F24F13/15; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87265; Y10T137/8741; Y10T137/87442; Y10T137/87467; Y10T137/87483
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
182 words
Sealing apparatus for substantially preventing the flow of gaseous fluid through a damper assembly having a plurality of movable vanes and including: a first rigid sealing member having a generally circular cross-section and adapted to be attached to a first edge of a first movable vane, said first edge being movable through a first arc between a damper-open position and a damper-closed position; a second, resilient sealing member having a top wall for contacting said first member, a pair of generally planar side walls and a bottom wall, said walls defining a generally rectangular cross-section, said second member being adapted to be attached to a second edge of a second movable vane, said second edge being movable through a second arc between said damper-open position and said damper-closed position; said second sealing member having said generally rectangular cross-section when said movable vanes are in said damper-open position; said sealing members making substantially line contact one with the other as said edges are moved toward said damper-closed position; said side walls being maintained generally planar when said vanes are at said damper-closed position.
Claim 2
Dependent Claim
182 words
Sealing apparatus for substantially preventing the flow of gaseous fluid through a damper assembly having a plurality of movable vanes and including: a first rigid sealing member having a generally circular cross-section and adapted to be attached to a first edge of a first movable vane, said first edge being movable through a first arc between a damper-open position and a damper-closed position; a second, resilient sealing member having a top wall for contacting said first member, a pair of generally planar side walls and a bottom wall, said walls defining a generally rectangular cross-section, said second member being adapted to be attached to a second edge of a second movable vane, said second edge being movable through a second arc between said damper-open position and said damper-closed position; said second sealing member having said generally rectangular cross-section when said movable vanes are in said damper-open position; said sealing members making substantially line contact one with the other as said edges are moved toward said damper-closed position; said side walls being maintained generally planar when said vanes are at said damper-closed position.
Claim 3
Dependent Claim
28 words
The invention set forth in claim 1 wherein said second sealing member is deformably compressed by said first sealing member when said vanes are at said damper-closed position.
Claim 4
Dependent Claim
22 words
The invention set forth in claim 2 wherein said second sealing member includes a plurality of walls defining a hollow core area.
Claim 5
Dependent Claim
249 words
A sealing apparatus for substantially preventing the flow of gaseous fluid through a damper assembly having a plurality of pivotably movable vanes and including: an elongate, rigid, generally cylindrical first sealing member adapted to be attached to a first edge of a first movable vane, said first edge being movable from a damper-open position through a first arc to a damper-closed position; a second, resilient sealing member adapted to be attached to a second edge of a second movable vane, said second edge being movable from a damper-open position through a second arc to a damper-closed position, said second member including a first, elongate sealing portion having a top wall, a pair of generally planar side walls and a bottom wall to define a generally rectangular cross-section, said second member further including a second support portion coupled to said first portion; said second support portion including a foot member adapted to attach to a second edge of a second movable vane in substantially gas tight, sealing engagement therewith, said support portion further including a support rib disposed intermediate said first sealing portion and said foot member for maintaining said first sealing portion and said foot member in a spaced relationship; said first sealing member deformably engaging said top wall of said first sealing portion for substantially preventing the flow of gaseous fluid therebetween when said damper assembly is in a closed position, said side walls being maintained substantially generally planar when said damper assembly is in said closed position.
Claim 6
Dependent Claim
249 words
A sealing apparatus for substantially preventing the flow of gaseous fluid through a damper assembly having a plurality of pivotably movable vanes and including: an elongate, rigid, generally cylindrical first sealing member adapted to be attached to a first edge of a first movable vane, said first edge being movable from a damper-open position through a first arc to a damper-closed position; a second, resilient sealing member adapted to be attached to a second edge of a second movable vane, said second edge being movable from a damper-open position through a second arc to a damper-closed position, said second member including a first, elongate sealing portion having a top wall, a pair of generally planar side walls and a bottom wall to define a generally rectangular cross-section, said second member further including a second support portion coupled to said first portion; said second support portion including a foot member adapted to attach to a second edge of a second movable vane in substantially gas tight, sealing engagement therewith, said support portion further including a support rib disposed intermediate said first sealing portion and said foot member for maintaining said first sealing portion and said foot member in a spaced relationship; said first sealing member deformably engaging said top wall of said first sealing portion for substantially preventing the flow of gaseous fluid therebetween when said damper assembly is in a closed position, said side walls being maintained substantially generally planar when said damper assembly is in said closed position.
Claim 7
Dependent Claim
18 words
The invention set forth in claim 4 wherein said second support portion is attached to said bottom wall.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-09-16 | 1989-03-18 | 1989-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-09-16 | 1993-03-18 | 1993-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-09-16 | 1997-03-18 | 1997-09-17 | $7700.00 | Window Closed / Lapsed |