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US3887303A Expired / Lapsed US ⏱️ 0.0 years remaining

Hermetically sealed motor compressor

Assignee: Toshiba Corp
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Filing: 1971-01-19
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Granted: 1975-06-03
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Expires: 1991-01-19
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Abstract

Abstract A hermetically sealed motor compressor including a casing and a compressor body received therein and provided with a frame having a rim formed on the periphery, wherein there are formed notches in the upper part of the rim and there are provided springs, the bottom end of which is fitted into a socket in each notch and the upper end of which is fixed to a spring hanger so as to suspend the compressor body in the casing.

Inventors

  • 👤 Takashi Matsuzaka
  • 👤 Tsuneo Koga
  • 👤 Kazuya Komiyama

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 07:46
CPC Classifications
F; F04; F04B; F04B39/00; F04B39/12; F04B39/127

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 273 words
A hermetically sealed motor compressor including: a hermetically sealed casing; a compressor body housed in said casing and comprising a generally cup-shaped frame having a generally circular rim extending downward therefrom, said frame being provided at the upper portion thereof with a plurality of substantially equally spaced notches for causing the interIor of said frame to communicate with the outside thereof, the bottom of each of said notches constituting the horizontally flat upper surface of said rim; a plurality of generally L-shaped one piece spring hangers equal in number to the number of said notches, each spring hanger comprising a fitting portion fixed to said casing and an arm portion extending inwardly of said casing from said fitting portion, said spring hangers being disposed in said casing at a substantially equal peripheral spacing and with the free ends of said arm portions jointly defining an inscribed circle having a diameter larger than the outside diameter of said frame; a plurality of springs equal in number to the number of said notches, each spring having the lower end portion thereof fitted into a spring socket provided on the upper surface of the rim at the respective notch, and having the upper end portion thereof connected with the arm portion of the respective spring hanger by means of said free end of said arm portion being inserted between two adjacent coils of the upper end portion of the respective spring; and a substantially semicircular spring-engaging groove provided on at least one of the upper and lower surfaces of the arm portion of said spring hangers to receive one of the coils of its respective spring.
Claim 2
Dependent Claim 273 words
A hermetically sealed motor compressor including: a hermetically sealed casing; a compressor body housed in said casing and comprising a generally cup-shaped frame having a generally circular rim extending downward therefrom, said frame being provided at the upper portion thereof with a plurality of substantially equally spaced notches for causing the interIor of said frame to communicate with the outside thereof, the bottom of each of said notches constituting the horizontally flat upper surface of said rim; a plurality of generally L-shaped one piece spring hangers equal in number to the number of said notches, each spring hanger comprising a fitting portion fixed to said casing and an arm portion extending inwardly of said casing from said fitting portion, said spring hangers being disposed in said casing at a substantially equal peripheral spacing and with the free ends of said arm portions jointly defining an inscribed circle having a diameter larger than the outside diameter of said frame; a plurality of springs equal in number to the number of said notches, each spring having the lower end portion thereof fitted into a spring socket provided on the upper surface of the rim at the respective notch, and having the upper end portion thereof connected with the arm portion of the respective spring hanger by means of said free end of said arm portion being inserted between two adjacent coils of the upper end portion of the respective spring; and a substantially semicircular spring-engaging groove provided on at least one of the upper and lower surfaces of the arm portion of said spring hangers to receive one of the coils of its respective spring.
Claim 3
Dependent Claim 273 words
A hermetically sealed motor compressor including: a hermetically sealed casing; a compressor body housed in said casing and comprising a generally cup-shaped frame having a generally circular rim extending downward therefrom, said frame being provided at the upper portion thereof with a plurality of substantially equally spaced notches for causing the interIor of said frame to communicate with the outside thereof, the bottom of each of said notches constituting the horizontally flat upper surface of said rim; a plurality of generally L-shaped one piece spring hangers equal in number to the number of said notches, each spring hanger comprising a fitting portion fixed to said casing and an arm portion extending inwardly of said casing from said fitting portion, said spring hangers being disposed in said casing at a substantially equal peripheral spacing and with the free ends of said arm portions jointly defining an inscribed circle having a diameter larger than the outside diameter of said frame; a plurality of springs equal in number to the number of said notches, each spring having the lower end portion thereof fitted into a spring socket provided on the upper surface of the rim at the respective notch, and having the upper end portion thereof connected with the arm portion of the respective spring hanger by means of said free end of said arm portion being inserted between two adjacent coils of the upper end portion of the respective spring; and a substantially semicircular spring-engaging groove provided on at least one of the upper and lower surfaces of the arm portion of said spring hangers to receive one of the coils of its respective spring.
Claim 4
Dependent Claim 273 words
A hermetically sealed motor compressor including: a hermetically sealed casing; a compressor body housed in said casing and comprising a generally cup-shaped frame having a generally circular rim extending downward therefrom, said frame being provided at the upper portion thereof with a plurality of substantially equally spaced notches for causing the interIor of said frame to communicate with the outside thereof, the bottom of each of said notches constituting the horizontally flat upper surface of said rim; a plurality of generally L-shaped one piece spring hangers equal in number to the number of said notches, each spring hanger comprising a fitting portion fixed to said casing and an arm portion extending inwardly of said casing from said fitting portion, said spring hangers being disposed in said casing at a substantially equal peripheral spacing and with the free ends of said arm portions jointly defining an inscribed circle having a diameter larger than the outside diameter of said frame; a plurality of springs equal in number to the number of said notches, each spring having the lower end portion thereof fitted into a spring socket provided on the upper surface of the rim at the respective notch, and having the upper end portion thereof connected with the arm portion of the respective spring hanger by means of said free end of said arm portion being inserted between two adjacent coils of the upper end portion of the respective spring; and a substantially semicircular spring-engaging groove provided on at least one of the upper and lower surfaces of the arm portion of said spring hangers to receive one of the coils of its respective spring.
Claim 5
Dependent Claim 42 words
The motor compressor according to claim 1 wherein said arm portions of the spring hangers are inclined to the same extent as the pitch angle of said spring with respect to a horizontal place so as to suspend said spring substantially vertically.
Claim 6
Dependent Claim 44 words
The motor compressor according to claim 2 wherein the arm portion of each of said spring hangers is provided on the upper surface thereof with a substantially semicircular spring-engaging groove for receiving the upper coil of said two adjacent coils of the respective spring.
Claim 7
Dependent Claim 44 words
The motor compressor according to claim 3 wherein the arm portion of each of said spring hangers is provided on the lower surface thereof with a substantially semicircular spring-engaging groove for receiving the lower coil of said two adjacent coils of the respective spring.
Claim 8
Dependent Claim 35 words
The motor compressor according to claim 1 wherein the upper surface of said rim defined by the bottom of said notch lies substantially in a horizontal place including the gravitational center of the compressor body.

References Cited (Backward Citations)

US3089639A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-06-02 1978-12-02 1979-06-03 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-06-02 1982-12-02 1983-06-03 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-06-02 1986-12-02 1987-06-03 $7700.00 Window Closed / Lapsed

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