US4871300A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compressor spring mounting
Assignee: Danfoss AS
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Filing: 1988-07-14
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Granted: 1989-10-03
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Expires: 2008-07-14
Abstract
Abstract This invention relates to an insert freely displaceable in a coil spring that at opposite ends abut against spring support formed in a motor compressor unit capsule and a spring support formed by a stator plate. The spring supports project into the opposite ends of the spring to extend toward one another. The opposite ends of the insert are recessed to be of shapes generally corresponding to the adjacent parts of the supports. The insert serves as a transport abutment and permits lateral movement without excessively deforming of the spring.
Inventors
- 👤 Svend E. Outzen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:32
CPC Classifications
F; F04; F04B; F04B39/00; F04B39/12; F04B39/127; F16; F16F; F16F1/00; F16F1/02; F16F1/04; F16F1/12; F16F1/13; H; H02; H02K; H02K5/00; H02K5/24
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
157 words
A compressor spring mounting, comprising a compressor base having a lower spring support, a compressor upper spring support movable relative to the lower spring support in at least two diamensions and spaced therefrom, a helical spring disposed between the upper and lower spring supports in abutting relationship to the spring supports and having an interior, and a movable insert disposed in the spring interior and being elongated in the direction of spacing of the supports from one another and movable away from each of the supports, the insert having at least one arcuately curved recessed end, the spring support adjacent to the recessed end having a portion adjacent to and arcuately curved to generally correspond to the adjacent arcuately curved recessed end to permit the insert pivoting in all directions relative to the support portion when the insert is supported by the support portion, the support portion extending into the spring to be abutable against the insert.
Claim 2
Dependent Claim
157 words
A compressor spring mounting, comprising a compressor base having a lower spring support, a compressor upper spring support movable relative to the lower spring support in at least two diamensions and spaced therefrom, a helical spring disposed between the upper and lower spring supports in abutting relationship to the spring supports and having an interior, and a movable insert disposed in the spring interior and being elongated in the direction of spacing of the supports from one another and movable away from each of the supports, the insert having at least one arcuately curved recessed end, the spring support adjacent to the recessed end having a portion adjacent to and arcuately curved to generally correspond to the adjacent arcuately curved recessed end to permit the insert pivoting in all directions relative to the support portion when the insert is supported by the support portion, the support portion extending into the spring to be abutable against the insert.
Claim 3
Dependent Claim
22 words
A spring mounting according to claim 1, characterized in that the insert is disattached with reference to each of the spring supports.
Claim 4
Dependent Claim
23 words
A spring mounting according to claim 1, characterized in that one of the spring supports is defined by a one piece compressor support.
Claim 5
Dependent Claim
30 words
A spring mounting according to claim 1, characterized in that one of the spring supports is defined by a one piece compressor mounting that projects toward the other spring support.
Claim 6
Dependent Claim
24 words
A spring mounting according to claim 1, characterized in that the insert is formed from a thermoplastic polyester material that is resistant to refrigerants.
Claim 7
Dependent Claim
32 words
A spring mounting according to claim 1, characterized in that the insert has a generally cylindrical, axially intermediate portion and an end portion of a smaller diameter than the axial intermediate portion.
Claim 8
Dependent Claim
18 words
A spring mounting according to claim 6, characterized in that the insert has a generally cylindrical outer surface.
Claim 9
Dependent Claim
24 words
A spring mounting according to claim 1, characterized in that each of the spring supports projects into the spring toward the other spring support.
Claim 10
Dependent Claim
38 words
A spring mounting according to claim 8, characterized in that the insert has at least one recessed end, the spring support adjacent to the recessed end having a portion adjacent to and corresponding to the adjacent recessed end.
Claim 11
Dependent Claim
81 words
A compressor spring mounting, comprising a compressor base having a lower spring support, a compressor upper spring support movable relative to the lower spring support in at least two dimensions, a helical spring disposed between the upper and lower spring supports in abutting relationship to the spring supports and having an interior, and a movable insert disposed in the spring interior, the insert having a generally cylindrical surface and at least three longitudinal ribs extending radially outwardly of the cylindrical surface.
Claim 12
Dependent Claim
81 words
A compressor spring mounting, comprising a compressor base having a lower spring support, a compressor upper spring support movable relative to the lower spring support in at least two dimensions, a helical spring disposed between the upper and lower spring supports in abutting relationship to the spring supports and having an interior, and a movable insert disposed in the spring interior, the insert having a generally cylindrical surface and at least three longitudinal ribs extending radially outwardly of the cylindrical surface.
Claim 13
Dependent Claim
75 words
A compressor spring mounting, comprising a compressor base having a lower spring support, a compressor upper spring support movable relative to the lower spring support in at least two dimensions, a helical spring disposed between the upper and lower spring supports in abutting relationship to the spring supports and having an interior, and a movable insert disposed in the spring interior, at least one of the spring supports and the recessed end being generally conical.
Claim 14
Dependent Claim
75 words
A compressor spring mounting, comprising a compressor base having a lower spring support, a compressor upper spring support movable relative to the lower spring support in at least two dimensions, a helical spring disposed between the upper and lower spring supports in abutting relationship to the spring supports and having an interior, and a movable insert disposed in the spring interior, at least one of the spring supports and the recessed end being generally conical.
Claim 15
Dependent Claim
63 words
A spring mounting according to claim 11, characterized in that the spring supports and insert have a longitudinal axis, that the recessed end is defined by a generally conical insert wall and that the angle between the conical wall and the longitudinal axis of the insert is larger than the angle between the conical wall and the longitudinal axis of the spring supports.
Claim 16
Dependent Claim
77 words
A compressor spring mounting, comprising a compressor base having a lower spring support, a compressor upper spring support movable relative to the lower spring support in at least two dimensions, a helical spring disposed between the upper and lower spring supports in abutting relationship to the spring supports and having an interior, and a movable insert disposed in the spring interior, at least one spring support and the adjacent recessed end being of substantially spherical shaped segments.
Claim 17
Dependent Claim
77 words
A compressor spring mounting, comprising a compressor base having a lower spring support, a compressor upper spring support movable relative to the lower spring support in at least two dimensions, a helical spring disposed between the upper and lower spring supports in abutting relationship to the spring supports and having an interior, and a movable insert disposed in the spring interior, at least one spring support and the adjacent recessed end being of substantially spherical shaped segments.
Claim 18
Dependent Claim
22 words
A spring mounting according to claim 13, characterized in that the radii of curvature of the spherical segmental shapes are substantially equal.
References Cited (Backward Citations)
US2118150A
Cited
US2520937A
Cited
US3030056A
Cited
US3531069A
Cited
JPS5759077A
Cited
US4549859A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-10-02 | 1993-04-03 | 1993-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-10-02 | 1997-04-03 | 1997-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-10-02 | 2001-04-03 | 2001-10-03 | $7700.00 | Window Closed / Lapsed |