US4013117A
Expired / Lapsed
US
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Multi-start involute regenerator matrix disk and method of assembling same
Assignee: Motors Liquidation Co
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Filing: 1976-02-06
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Granted: 1977-03-22
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Expires: 1996-02-06
Abstract
Abstract A multi-start involute regenerator matrix disk and method for assembling the same, the matrix disk including a hub mandrel with a plurality of matrix elements, each preferably including a matrix strip and a separator strip, in series orientation, endwise abutment against the hub mandrel and mechanically secured to the hub mandrel by a pair of annular pinch rings pressed into the opposite side edges of the matrix elements with the pinch rings positioned to encircle the hub mandrel radially outward thereof whereby to effect wedging of portions of the matrix elements against the outer peripheral surface of the hub mandrel, the matrix elements spirally encircling the hub mandrel in an involute configuration and bonded together to form a rigid elastic matrix structure.
Inventors
- 👤 Nikolaus Kopetzki
- 👤 Petro Mykolenko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:20
CPC Classifications
B; B23; B23P; B23P11/00; F; F28; F28D; F28D19/00; F28D19/04; F28D19/041; F28D19/042; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49357; Y10T29/49826; Y10T29/49861; Y10T29/49879; Y10T428/00; Y10T428/21; Y10T428/218
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
125 words
A regenerator matrix structure including a central hub mandrel, a plurality of matrix elements, each said matrix element having one end thereof in abutment against said hub mandrel and being spirally wound in involute configuration about said hub mandrel, each of said matrix elements including in series a chevron strip and a separator strip extending along one side of the chevron strip and, a pair of pinch rings encircling said hub mandrel on opposite sides thereof with each of said pinch rings being embedded into the edges of said matrix elements whereby to wedge said matrix elements against said hub mandrel, said matrix elements, said pinch rings and said hub mandrel being further bonded together into a rigid elastic structure integral with said hub mandrel.
Claim 2
Dependent Claim
125 words
A regenerator matrix structure including a central hub mandrel, a plurality of matrix elements, each said matrix element having one end thereof in abutment against said hub mandrel and being spirally wound in involute configuration about said hub mandrel, each of said matrix elements including in series a chevron strip and a separator strip extending along one side of the chevron strip and, a pair of pinch rings encircling said hub mandrel on opposite sides thereof with each of said pinch rings being embedded into the edges of said matrix elements whereby to wedge said matrix elements against said hub mandrel, said matrix elements, said pinch rings and said hub mandrel being further bonded together into a rigid elastic structure integral with said hub mandrel.
Claim 3
Dependent Claim
53 words
A regenerator matrix structure according to claim 1 wherein each of said pinch rings includes a flat base, a radially inboard side and a radially outboard side of a length greater than said inboard side extending from said flat base, and an inclined wedge side interconnecting said inboard side with said outboard side.
Claim 4
Independent Claim
174 words
A method of assembling a multi-start involute regenerator matrix disk having a hub mandrel means and a plurality of matrix elements, said method including the steps of providing a magnetic field on the peripheral surface of said hub mandrel, feeding matrix elements into endwise abutment against the outer peripheral surface of said hub mandrel means to be retained magnetically thereto, said matrix elements being positioned in parallel spaced apart relationship to each other about the outer peripheral surface of said hub mandrel means, mechanically securing said matrix elements to said hub mandrel means by pressing annular pinch rings into the edges of said matrix elements on opposite sides of said hub mandrel means, concentrically and radially outward thereof and closely adjacent thereto to effect wedging of said matrix elements against the outer peripheral surface of said hub mandrel means, removing the magnetic field from said hub mandrel means, spirally wrapping said matrix elements about said hub mandrel means in an involute configuration and then bonding said matrix elements together into a rigid elastic structure.
Claim 5
Independent Claim
174 words
A method of assembling a multi-start involute regenerator matrix disk having a hub mandrel means and a plurality of matrix elements, said method including the steps of providing a magnetic field on the peripheral surface of said hub mandrel, feeding matrix elements into endwise abutment against the outer peripheral surface of said hub mandrel means to be retained magnetically thereto, said matrix elements being positioned in parallel spaced apart relationship to each other about the outer peripheral surface of said hub mandrel means, mechanically securing said matrix elements to said hub mandrel means by pressing annular pinch rings into the edges of said matrix elements on opposite sides of said hub mandrel means, concentrically and radially outward thereof and closely adjacent thereto to effect wedging of said matrix elements against the outer peripheral surface of said hub mandrel means, removing the magnetic field from said hub mandrel means, spirally wrapping said matrix elements about said hub mandrel means in an involute configuration and then bonding said matrix elements together into a rigid elastic structure.
Claim 6
Dependent Claim
139 words
A method of assembling a multi-start involute regenerator matrix disk according to claim 1 wherein each of said matrix elements includes a separator strip and a chevron matrix strip, each said chevron matrix strip having substantially parallel spaced apart fins interconnected to each other at alternating ends by flat crests at one end and flat valleys at the opposite end, said separator strip being positioned to abut against the flat crests of one of said chevron matrix strips and against the flat valleys of the next adjacent one of said chevron matrix strips when said matrix elements are spirally wound about said hub mandrel means, and wherein the end of each of said matrix strips in endwise abutment with the outer peripheral surface of said hub mandrel means is one of said fins of the said chevron matrix strip.
Claim 7
Dependent Claim
79 words
A method of assembling a multi-start involute regenerator matrix disk according to claim 4 wherein said separator strip of at least one of said matrix elements is of a greater length than the associated said chevron matrix strip of said matrix element whereby, during spiral winding of said matrix elements about said hub mandrel means, said separator strip may be wrapped for at least one additional revolution after termination of the wrapping of the remainder of said matrix elements.
Claim 8
Independent Claim
193 words
A method of assembling a multi-start involute regenerator matrix disk having a hub mandrel means and a plurality of corrugated matrix strips and separator strips, each said separator strip being disposed between adjacent ones of said matrix strips, said method including the steps of magnetizing said hub mandrel means, feeding individual ones of said matrix strips and alternating separator strips in series orientation into endwise abutment against the outer peripheral surface of said hub mandrel means to be retained magnetically thereto, mechanically securing said corrugated matrix strips and separator strips to said hub mandrel means by pressing annular pinch rings into the assembly of said matrix strips and separator strips on opposite sides of said hub mandrel means concentrically and radially outward thereof and closely adjacent thereto to effect wedging of said matrix strips and said separator strips against the outer periphery of said hub mandrel means next adjacent to said pinch rings, de-magnetizing said hub mandrel means, spirally wrapping said corrugated matrix strips and said separator strips about said hub mandrel means in an involute configuration and, bonding said corrugated matrix strips and said separator strips together into a rigid elastic structure.
Claim 9
Independent Claim
193 words
A method of assembling a multi-start involute regenerator matrix disk having a hub mandrel means and a plurality of corrugated matrix strips and separator strips, each said separator strip being disposed between adjacent ones of said matrix strips, said method including the steps of magnetizing said hub mandrel means, feeding individual ones of said matrix strips and alternating separator strips in series orientation into endwise abutment against the outer peripheral surface of said hub mandrel means to be retained magnetically thereto, mechanically securing said corrugated matrix strips and separator strips to said hub mandrel means by pressing annular pinch rings into the assembly of said matrix strips and separator strips on opposite sides of said hub mandrel means concentrically and radially outward thereof and closely adjacent thereto to effect wedging of said matrix strips and said separator strips against the outer periphery of said hub mandrel means next adjacent to said pinch rings, de-magnetizing said hub mandrel means, spirally wrapping said corrugated matrix strips and said separator strips about said hub mandrel means in an involute configuration and, bonding said corrugated matrix strips and said separator strips together into a rigid elastic structure.
References Cited (Backward Citations)
US3596709A
Cited
US3875994A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-03-21 | 1980-09-20 | 1981-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-03-21 | 1984-09-20 | 1985-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-03-21 | 1988-09-20 | 1989-03-22 | $7700.00 | Window Closed / Lapsed |