Patent US2168390A successfully refreshed from Google Patents.
Patent US3789916A successfully refreshed from Google Patents.
US3789916A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotor for exchangers of the thermodynamic characteristics of two gas currents
Assignee: Carl Munters AB
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Filing: 1971-04-06
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Granted: 1974-02-05
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Expires: 1991-04-06
Abstract
Abstract A rotor for exchangers in which the thermodynamic characteristics of two gas currents are transferred from one current to the other while they are being passed through the exchanger insert in zones separated from one another, said rotor being formed with sector spaces defined by the outer surface of an inner hub, an outer envelope and radial spokes interconnecting said hub with said envelope, which sector spaces are filled with a moisture and/or heat transferring insert formed as prefabricated units having the shape of the sector spaces.
Inventors
- 👤 S Lindahl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:13
CPC Classifications
F; F24; F24F; F24F3/00; F24F3/12; F24F3/14; F24F3/1411; F24F3/1423; F28; F28D; F28D19/00; F28D19/04; F28D19/041; F28D19/042; F28D19/044; F24F2203/00; F24F2203/10; F24F2203/1004; F24F2203/1032; F24F2203/104; F24F2203/1068; F24F2203/108; F24F2203/1096; Y; Y10; Y10S; Y10S165/00; Y10S165/009; Y10S165/013; Y10S165/016
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
141 words
A rotary transferrer of thermodyanmic characteristics of two gas streams passing through the transfer in thermodynamic exchange relationship comprising: a. a wheel-like member having a hub, and a rim, said hub having an outer cylindrical surface; b. a plurality of radial spokes interconnecting said hub and said rim defining therebetween a plurality of sector units filled with a packing of gas permeable material; c. said packing comprising a spirally wound web composed of one plane sheet and one corrugated sheet; d. said spokes being composed of self-sustaining sheet material and having removable means for securing the spokes in axial and radial position on said hub; e. said spokes having inner end surfaces contoured to the cylindrical surface of said hub, and f. screw means for retaining said spokes radially on said hub with said surfaces in firm contact with one another.
Claim 2
Dependent Claim
141 words
A rotary transferrer of thermodyanmic characteristics of two gas streams passing through the transfer in thermodynamic exchange relationship comprising: a. a wheel-like member having a hub, and a rim, said hub having an outer cylindrical surface; b. a plurality of radial spokes interconnecting said hub and said rim defining therebetween a plurality of sector units filled with a packing of gas permeable material; c. said packing comprising a spirally wound web composed of one plane sheet and one corrugated sheet; d. said spokes being composed of self-sustaining sheet material and having removable means for securing the spokes in axial and radial position on said hub; e. said spokes having inner end surfaces contoured to the cylindrical surface of said hub, and f. screw means for retaining said spokes radially on said hub with said surfaces in firm contact with one another.
Claim 3
Dependent Claim
208 words
A rotary transferrer of thermodynamic characteristics of two gas streams passing through the transferrer in thermodynamic exchange relationship and having selectively replaceable parts comprising: a. a wheel-like member having a hub and a rim; b. a plurality of radial spokes extending between said hub and said rim defining therebetween a plurality of sectors units filled with a packing of gas permeable material; c. a retainer member removably engaging the hub end of each of said spokes; d. a pin engaging the hub end of each of said spokes and adapted to be inserted into holes spaced about the periphery of the hub to localize the position of the spokes relative to the hub; e. a screw member engaging said retainer member and adapted for engagement in screw-threaded holes in said hub to secure said spokes into engagement with the hub; f. a strap mounted on the radially extending lateral edge of each of said spokes for retaining the packing unit sectors in their axial position, the outer surfaces of said straps being substantially level with the outer surfaces of said packing unit sectors; g. said rim comprising a plurality of segments corresponding to the arc of said packing unit sectors and being adapted for connection to said spokes.
Claim 4
Dependent Claim
208 words
A rotary transferrer of thermodynamic characteristics of two gas streams passing through the transferrer in thermodynamic exchange relationship and having selectively replaceable parts comprising: a. a wheel-like member having a hub and a rim; b. a plurality of radial spokes extending between said hub and said rim defining therebetween a plurality of sectors units filled with a packing of gas permeable material; c. a retainer member removably engaging the hub end of each of said spokes; d. a pin engaging the hub end of each of said spokes and adapted to be inserted into holes spaced about the periphery of the hub to localize the position of the spokes relative to the hub; e. a screw member engaging said retainer member and adapted for engagement in screw-threaded holes in said hub to secure said spokes into engagement with the hub; f. a strap mounted on the radially extending lateral edge of each of said spokes for retaining the packing unit sectors in their axial position, the outer surfaces of said straps being substantially level with the outer surfaces of said packing unit sectors; g. said rim comprising a plurality of segments corresponding to the arc of said packing unit sectors and being adapted for connection to said spokes.
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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) | 1977-02-04 | 1977-08-06 | 1978-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-04 | 1981-08-06 | 1982-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-04 | 1985-08-06 | 1986-02-05 | $7700.00 | Window Closed / Lapsed |