US3596709A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transfer wheel assembly for air conditioner
Assignee: CARNES COMPANY Inc A WISCONSIN CORP
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Filing: 1969-11-28
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Granted: 1971-08-03
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Expires: 1989-11-28
Abstract
Abstract To hold radially extending blades of a transfer wheel in a desired orientation in the wheel notches are provided in the axially facing edges of each blade and a hub is provided which includes a pair of generally annular, axially spaced projections projecting toward each other. The radially outer ends of the blades are trimmed to length using the notches as a reference point and the hub projections fit into the blade notches. The notch and projection connection holds the blades against radial movement relative to the hub. The hub is also provided with a number of ribs spaced circumferentially with respect to each other and all arranged in radial spaced relation from the hub projections. Each blade extends between an adjacent pair of ribs for engagement by the ribs to thereby prevent angular movement of the blades.
Inventors
- 👤 Konstantins Dravnieks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:21
CPC Classifications
F; F24; F24F; F24F3/00; F24F3/12; F24F3/14; F24F3/1411; F24F3/1423; F24F2203/00; F24F2203/10; F24F2203/1004; F24F2203/1032; F24F2203/104; F24F2203/1068; F24F2203/108; F24F2203/1084; F24F2203/1096; Y; Y10; Y10S; Y10S165/00; Y10S165/009; Y10S165/013; Y10S165/016; Y10S165/02; Y10S165/024; Y10T; Y10T29/00; Y10T29/49; Y10T29/49316; Y10T29/4932; Y10T29/49321
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
199 words
A transfer wheel assembly comprising, in combination, a shaft defining an axis of rotation, hub means operatively associated with said shaft for rotation about said axis, a plurality of blades projecting radially relative to said axis and having generally axially facing and oppositely directed side portions. means defining a projection and notch connection between said hub means and blades and providing engagement between said hub means and blades at said blade side portions to hold said blades in a preselected orientation relative to said axis, the portions of said projection and notch defining means in said blades having a preselected orientation relative to the radially outer end of each of said blades and the portions of said projection and notch defining means on said hub means having a preselected orientation relative to said shaft, and condition transfer medium supported within said wheel and being pervious to flow of a gaseous medium and capable of providing a condition transfer between itself and the gaseous medium flowing therethrough, said condition transfer medium separated into distinct portions within said wheel by said blades with said blades isolating adjacent portions of said transfer medium so that the condition of one transfer medium portion.
Claim 2
Dependent Claim
199 words
A transfer wheel assembly comprising, in combination, a shaft defining an axis of rotation, hub means operatively associated with said shaft for rotation about said axis, a plurality of blades projecting radially relative to said axis and having generally axially facing and oppositely directed side portions. means defining a projection and notch connection between said hub means and blades and providing engagement between said hub means and blades at said blade side portions to hold said blades in a preselected orientation relative to said axis, the portions of said projection and notch defining means in said blades having a preselected orientation relative to the radially outer end of each of said blades and the portions of said projection and notch defining means on said hub means having a preselected orientation relative to said shaft, and condition transfer medium supported within said wheel and being pervious to flow of a gaseous medium and capable of providing a condition transfer between itself and the gaseous medium flowing therethrough, said condition transfer medium separated into distinct portions within said wheel by said blades with said blades isolating adjacent portions of said transfer medium so that the condition of one transfer medium portion.
Claim 3
Dependent Claim
48 words
The combination of claim 1 including a generally cylindrical member engaging and connected to said blades at the radially outer ends of said blades for rotation therewith, said cylindrical member extending around and closing the periphery of said wheel assembly as defined by said radially outer blade ends.
Claim 4
Dependent Claim
15 words
The combination of claim 1 wherein said blades are generally planar in an axial direction.
Claim 5
Dependent Claim
69 words
The combination of claim 1 wherein said hub means include a plurality of pairs of opposed generally radially extending surfaces spaced radially from said projection and notch connection, and wherein each of said blades extend between a respective pair of said hub means radially extending surfaces for engagement of said blades by said hub means radially extending surfaces to cooperate in holding said blades in said radially projecting orientation.
Claim 6
Dependent Claim
44 words
The combination of claim 4 wherein said blades are generally planar in an axial direction and include opposite planar surfaces having both an axial and radial extension, and said opposite planar blade surfaces are engaged by said radially extending surfaces of said hub means.
Claim 7
Dependent Claim
68 words
The combination of claim 5 in combination with means defining first and second passages, and including partition means separating said first passage from said second passage, and wherein said wheel assembly is arranged for rotation through both said first and second passages, and further including sealing means connected along both of the radially extending, axially facing sides of said blades and arranged for engagement with said partition means.
Claim 8
Dependent Claim
52 words
The combination of claim 6 including circular baffle means within said passages and extending generally around the periphery of said wheel assembly, and generally circular sealing means connected to and extending around said wheel assembly adjacent the outer periphery thereof and engaging said baffle means to prevent flow bypassing said wheel assembly.
Claim 9
Dependent Claim
35 words
The combination of claim 4 wherein said hub means includes first and second hub means portions arranged with said blade means therebetween and means connecting said hub means portions to each other and said blades.
Claim 10
Dependent Claim
90 words
The combination of claim 8 wherein said blades are generally planar in an axial direction and include opposite planar surfaces having both a radial and axial extension, including means defining notches in the opposite axial facing sides of each of said blades, each of said hub means portions including axially extending first projections arranged with the first projections on one hub means portion extending toward the first projections on the other hub means portion, and said first projections engaged in said blade notches and holding said blades against radial displacement.
Claim 11
Dependent Claim
109 words
The transfer wheel assembly of claim 9 including means on each of said hub means portions defining a plurality of axially extending second projections spaced circumferentially on said hub means portions and spaced radially from said first projections, the second projections on one of said hub means portions extending toward the second projections on the other hub means portions, and each of said blades disposed between said first and second hub means portions and extending between a pair of adjacent ones of said second projections on each of said hub means portions, said second projections engaging and holding said blades in the desired orientation relative to said hub means.
Claim 12
Dependent Claim
68 words
The combination of claim 10 in combination with means defining first and second passages, and including partition means separating said first passage from said second passage, and wherein said wheel assembly is arranged for rotation through both said first and second passages, and further including sealing means connected along both of the radially extending, axially facing sides of said blades and arranged for engagement with said partition means.
Claim 13
Dependent Claim
52 words
The combination of claim 11 including circular baffle means within said passage and extending generally around the periphery of said wheel assembly, and generally circular sealing means connected to and extending around said wheel assembly adjacent the outer periphery thereof and engaging said baffle means to prevent flow bypassing said wheel assembly.
Claim 14
Independent Claim
110 words
The method of fabricating a transfer wheel comprising the steps of forming a plurality of generally elongated blades, forming a notch in the opposite longitudinal sides of each of said blades, using at least One of said notches as a reference point, trimming one of the longitudinal ends of each of said blades, forming a hub with opposed, axially spaced first projections, assembling said blades on said hub with said first projections engaged in said notches and with said blades projecting radially from said hub with said trimmed blade ends spaced radially out from said hub, and positioning gaseous medium pervious condition transfer material between adjacent ones of said blades.
Claim 15
Independent Claim
110 words
The method of fabricating a transfer wheel comprising the steps of forming a plurality of generally elongated blades, forming a notch in the opposite longitudinal sides of each of said blades, using at least One of said notches as a reference point, trimming one of the longitudinal ends of each of said blades, forming a hub with opposed, axially spaced first projections, assembling said blades on said hub with said first projections engaged in said notches and with said blades projecting radially from said hub with said trimmed blade ends spaced radially out from said hub, and positioning gaseous medium pervious condition transfer material between adjacent ones of said blades.
Claim 16
Dependent Claim
67 words
The method of claim 13 including the steps of providing a plurality of axially extending, circumferential spaced second projections on said hub and spaced radially from said first projections, and positioning each of said blades between a pair of adjacent second projections and for engagement by said second projections so that said second projections cooperate in holding said blades in said orientation projecting radially from said hub.
Claim 17
Dependent Claim
28 words
The method of claim 14 including the steps of using one of the longitudinal edges of each of said blades as a reference edge in making said notches.
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) | 1974-08-02 | 1975-02-01 | 1975-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-02 | 1979-02-01 | 1979-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-02 | 1983-02-01 | 1983-08-03 | $7700.00 | Window Closed / Lapsed |