US3613548A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air-mixing valve assembly
Assignee: Hospitality Homes
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Filing: 1968-12-30
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Granted: 1971-10-19
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Expires: 1988-12-30
Abstract
Abstract An air-mixing valve assembly for high-pressure air-conditioning systems. The valve assembly includes a damper disposed between opposed gasketed openings which are provided in spaced-apart walls. Link hinge means supports the damper for swinging movement about two spaced generally parallel axes, between the walls, toward and away from engagement with a selected one of the gasketed openings. A gasket of improved configuration is provided at each opening. A positive seal is formed when the damper engages either of the gasketed openings.
Inventors
- 👤 Paul V Motts
- 👤 Wayne K Stoops
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:45
CPC Classifications
F; F24; F24F; F24F13/00; F24F13/02; F24F13/04; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86847
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
156 words
In an air-mixing valve having a pair of spaced-apart walls defining a mixing chamber and presenting opposed air inlet openings, a gasket applied at the rim of each of said openings and a damper positioned between said spaced-apart walls and confronting said opposed openings, said damper having opposite first and second edges, the improvement comprising: hinge means for supporting said damper along said first edge for swinging movement between said spaced-apart walls, said hinge means providing a pair of spaced-apart pivot axes extending parallel with said first edge of said damper, said damper being pivotal about said pivot axes into flush sealing contact with the entire periphery of the gasket of a selected one of said opposed openings; and operating means connected to said damper intermediate of said first and second edges for swinging said damper about said pivot axes toward and away from flush sealing contact with the gasket of each of said opposed openings.
Claim 2
Dependent Claim
156 words
In an air-mixing valve having a pair of spaced-apart walls defining a mixing chamber and presenting opposed air inlet openings, a gasket applied at the rim of each of said openings and a damper positioned between said spaced-apart walls and confronting said opposed openings, said damper having opposite first and second edges, the improvement comprising: hinge means for supporting said damper along said first edge for swinging movement between said spaced-apart walls, said hinge means providing a pair of spaced-apart pivot axes extending parallel with said first edge of said damper, said damper being pivotal about said pivot axes into flush sealing contact with the entire periphery of the gasket of a selected one of said opposed openings; and operating means connected to said damper intermediate of said first and second edges for swinging said damper about said pivot axes toward and away from flush sealing contact with the gasket of each of said opposed openings.
Claim 3
Dependent Claim
37 words
The improvement of claim 1 wherein one of said pivot axes is stationary with respect to said spaced-apart walls, the other of said pivot axes is movable about said one of said pivot axes along an arc.
Claim 4
Dependent Claim
27 words
The improvement of claim 1 wherein one of said pivot axes is disposed between said first edge of said damper and the other of said pivot axes.
Claim 5
Dependent Claim
14 words
The improvement of claim 1 wherein said spaced-apart walls converge toward said hinge means.
Claim 6
Dependent Claim
27 words
The improvement of claim 1 wherein said operating means includes an operating rod extending through one of said opposed openings and is pivotally connected to said damper.
Claim 7
Dependent Claim
76 words
The improvement of claim 1 wherein said hinge means comprises: movable pivotal block means secured to said first edge of said damper and having axially aligned first bores defining one of said pivot axes; stationary pivot block means having axially aligned second bores each adjacent to one of said first bores and defining the other of said pivot axes; and link means for pivotally connecting said movable pivot block means to said stationary pivot block means.
Claim 8
Dependent Claim
55 words
The improvement of claim 6 wherein said link means comprises: generally Z-shaped pin members, each having a central portion and oppositely extending parallel leg portions at the ends thereof, one of said leg portions extending into one of said first bores and the other of said leg portions extending into one of said second bores.
Claim 9
Dependent Claim
57 words
The improvement of claim 1 wherein said hinge means comprises: A flexible strip having first edge secured to said one end of said damper and an opposite end spaced from said first edge; and A hinge including a stationary member and a movable member, said movable member being secured to said opposite end of said flexible strip.
Claim 10
Dependent Claim
52 words
The improvement defined in claim 1 wherein said gasket comprises: an annular body portion applied to and enclosing the rim of said opening; and an annular flexing lip having a trailing edge adjoining said body portion and a leading edge spaced from said annular body portion in the direction of said damper.
Claim 11
Dependent Claim
14 words
The improvement of claim 9 wherein said annular flexing lip has a frustoconical configuration.
Claim 12
Dependent Claim
25 words
The improvement of claim 9 wherein said annular body portion includes an inner edge and an outer edge; said trailing edge adjoining said outer edge.
Claim 13
Dependent Claim
20 words
The improvement of claim 10 wherein the diameter of said trailing edge is larger than that of said leading edge.
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) | 1974-10-18 | 1975-04-19 | 1975-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-18 | 1979-04-19 | 1979-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-18 | 1983-04-19 | 1983-10-19 | $7700.00 | Window Closed / Lapsed |