Patent US4449610A successfully refreshed from Google Patents.
US4449610A
Expired / Lapsed
US
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Muffler for compressor for refrigerating apparatuses
Assignee: Necchi Compressori Srl
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Filing: 1982-02-17
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Granted: 1984-05-22
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Expires: 2002-02-17
Abstract
Abstract A muffler on the intake tube in a hermetically sealed compressor for refrigerating apparatuses in direct communication with the intake chamber located in the compressor cylinder head. The body of the muffler, preferably made of plastic material, consists of two half-shells of identical form and structure assembled in an overlapped way and turned by 180° C. with respect to each other.
Inventors
- 👤 Alfredo Bar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:22
CPC Classifications
F; F04; F04B; F04B39/00; F04B39/12; F04B39/123; F04B39/0027; F04B39/0055; F04B39/0061; Y; Y10; Y10S; Y10S181/00; Y10S181/403
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
132 words
A muffler for compressors which compressors consist of a hermetically sealed shell, a driving electric motor, a cylinder, and a head for said cylinder in which are located the intake and compression chambers of the refrigerant gas, said muffler consisting of two overlapping half-shells of identical structure, assembled by bringing their open walls together and rotating one half-shell 180° with respect to the other, each half-shell defining two extensions therefrom, one of said extensions in each half-shell defining a conduit therethrough communicating with the interior of said half-shell, said extension with conduit located on the upper half-shell conveying the refrigerant gas from the hermetically sealed shell into the muffler and the extension with conduit on the lower half-shell communicating the interior of said muffler with the intake chamber located in said head.
Claim 2
Dependent Claim
132 words
A muffler for compressors which compressors consist of a hermetically sealed shell, a driving electric motor, a cylinder, and a head for said cylinder in which are located the intake and compression chambers of the refrigerant gas, said muffler consisting of two overlapping half-shells of identical structure, assembled by bringing their open walls together and rotating one half-shell 180° with respect to the other, each half-shell defining two extensions therefrom, one of said extensions in each half-shell defining a conduit therethrough communicating with the interior of said half-shell, said extension with conduit located on the upper half-shell conveying the refrigerant gas from the hermetically sealed shell into the muffler and the extension with conduit on the lower half-shell communicating the interior of said muffler with the intake chamber located in said head.
Claim 3
Dependent Claim
27 words
The muffler according to claim 1, wherein said half-shells are made of plastic material resistant to the chemical action of the refrigerant gas and the lubricating oil.
References Cited (Backward Citations)
US3750840A
Cited
US4370104A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-05-22 | 1987-11-21 | 1988-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-05-22 | 1991-11-21 | 1992-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-05-22 | 1995-11-21 | 1996-05-22 | $7700.00 | Window Closed / Lapsed |