US3604458A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temperature compensating damper structure
Assignee: Modine Manufacturing Co
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Filing: 1969-02-13
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Granted: 1971-09-14
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Expires: 1989-02-13
Abstract
Abstract A temperature compensating damper structure adapted to be used to control flow of fluid and subject to extreme temperature changes in which the structure comprises a fluid control damper means such as a plurality of dampers mounted in a frame and movable between open and closed position, stop means against which the damper means bear when in the closed position and yieldable operating means such as springs for moving the damper means to this closed position, the yieldable operating means having a path of travel extending beyond the corresponding closed position of the damper structure against the stop means regardless of expansion and contraction of the damper structure parts during temperature changes therein.
Inventors
- 👤 Harry J Silvey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:24
CPC Classifications
F; F16; F16K; F16K1/00; F16K1/16; F16K1/165; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87265; Y10T137/8741; Y10T137/87442; Y10T137/87467; Y10T137/87483
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
216 words
A temperature compensating damper structure for controlling flow of fluid, comprising: fluid flow control damper means comprising a plurality of dampers; means for mounting said damper means for movement between open and closed positions; stop means against which each said damper of said damper means bears in said closed position; yieldable operating means for moving said damper means to said closed position having a path of travel extending beyond the corresponding closed position of each said damper of said damper means, thereby applying a yieldable closing force holding said damper structure against said stop means during temperature changes in said structure; a frame through which said fluid flows and across which said damper means extends, said yieldable operating means being located externally of said frame to be out of substantial contact with said fluid; and bearings in which said plurality of individual dampers are rotatably held in said frame, said external yieldable operating means comprising an arm operatively attached to each said damper and arcuately movable therewith, a longitudinally movable bar and yieldable force applying means between said bar and each said arm, said yieldable force applying means comprising a pair of springs on said bar operatively bearing against opposite sides of each said arm and extending between a stop on said bar and its arm.
Claim 2
Dependent Claim
216 words
A temperature compensating damper structure for controlling flow of fluid, comprising: fluid flow control damper means comprising a plurality of dampers; means for mounting said damper means for movement between open and closed positions; stop means against which each said damper of said damper means bears in said closed position; yieldable operating means for moving said damper means to said closed position having a path of travel extending beyond the corresponding closed position of each said damper of said damper means, thereby applying a yieldable closing force holding said damper structure against said stop means during temperature changes in said structure; a frame through which said fluid flows and across which said damper means extends, said yieldable operating means being located externally of said frame to be out of substantial contact with said fluid; and bearings in which said plurality of individual dampers are rotatably held in said frame, said external yieldable operating means comprising an arm operatively attached to each said damper and arcuately movable therewith, a longitudinally movable bar and yieldable force applying means between said bar and each said arm, said yieldable force applying means comprising a pair of springs on said bar operatively bearing against opposite sides of each said arm and extending between a stop on said bar and its arm.
Claim 3
Dependent Claim
34 words
The structure of claim 1 wherein each said damper comprises longitudinal side edge portions, and said stop means comprises stop members between said dampers against which said edge portions bear in said closed position.
Claim 4
Dependent Claim
177 words
A temperature compensating damper structure for controlling flow of fluid, comprising: fluid flow control damper means; means for mounting said damper means for movement between open and closed positions; stop means against which said damper means bears in said closed position; yieldable operating means for moving said damper means to said closed position having a path of travel extending beyond the corresponding closed position of said damper means, thereby applying a yieldable closing force holding said damper structure against said stop means during temperature changes in said structure; and a frame through which said fluid flows and across which said damper means extends, wherein said yieldable operating means is located externally of said frame to be out of substantial contact with said fluid and wherein said damper means comprises a plurality of individual dampers rotatably held in bearings in said frame, and said external yieldable operating means comprises an arm operatively attached to each said damper and arcuately movable therewith, a longitudinally movable bar and individual yieldable force applying means between said bar and each said arm.
Claim 5
Dependent Claim
177 words
A temperature compensating damper structure for controlling flow of fluid, comprising: fluid flow control damper means; means for mounting said damper means for movement between open and closed positions; stop means against which said damper means bears in said closed position; yieldable operating means for moving said damper means to said closed position having a path of travel extending beyond the corresponding closed position of said damper means, thereby applying a yieldable closing force holding said damper structure against said stop means during temperature changes in said structure; and a frame through which said fluid flows and across which said damper means extends, wherein said yieldable operating means is located externally of said frame to be out of substantial contact with said fluid and wherein said damper means comprises a plurality of individual dampers rotatably held in bearings in said frame, and said external yieldable operating means comprises an arm operatively attached to each said damper and arcuately movable therewith, a longitudinally movable bar and individual yieldable force applying means between said bar and each said arm.
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) | 1974-09-13 | 1975-03-15 | 1975-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-13 | 1979-03-15 | 1979-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-13 | 1983-03-15 | 1983-09-14 | $7700.00 | Window Closed / Lapsed |