US4415060A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Muffler for compressors
Assignee: Necchi Compressori Srl
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Filing: 1982-02-17
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Granted: 1983-11-15
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Expires: 2002-02-17
Abstract
Abstract A muffler for hermetically sealed compressors consisting of a body made of plastic material with two chambers separated by a wall and directly assembled on the compressor cylinder head by means of two lined up small tubes equipped with special sealing means. The danger that the muffler may break loose from the head and possibly rotate on its axis of vertical symmetry is thus avoided.
Inventors
- 👤 Alfredo Bar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:09
CPC Classifications
F; F01; F01N; F01N13/00; F01N13/002; F04; F04B; F04B39/00; F04B39/0027; F04B39/0055; F04B39/0061; F04B39/12; F04B39/123; Y; Y10; Y10S; Y10S181/00; Y10S181/403
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
175 words
A muffler for compressors which compressors consist of an electric motor, a cylinder and a head for the cylinder in which are located the intake and compression chambers for refrigerant gas, comprising a muffler body constructed from plastic material resistant to the action of the chemical agents of the refrigerant gas and the lubricating oil and which consists of first and second chambers separated partially by a central wall, said muffler body having a hole therein communicating with said first chamber for the passage of said refrigerant gas and an external small tube extending therefrom through which said second chamber communicates with the intake chamber located in said head, a second small tube extending from the muffler body below said first chamber and co-operating with said small tube interconnecting the second chamber and the intake chamber of said head, said head having two holes communicating with said intake chamber for receiving and projecting both small tubes into said intake chamber, and two rings one on each tube which hold the muffler body to the head.
Claim 2
Dependent Claim
175 words
A muffler for compressors which compressors consist of an electric motor, a cylinder and a head for the cylinder in which are located the intake and compression chambers for refrigerant gas, comprising a muffler body constructed from plastic material resistant to the action of the chemical agents of the refrigerant gas and the lubricating oil and which consists of first and second chambers separated partially by a central wall, said muffler body having a hole therein communicating with said first chamber for the passage of said refrigerant gas and an external small tube extending therefrom through which said second chamber communicates with the intake chamber located in said head, a second small tube extending from the muffler body below said first chamber and co-operating with said small tube interconnecting the second chamber and the intake chamber of said head, said head having two holes communicating with said intake chamber for receiving and projecting both small tubes into said intake chamber, and two rings one on each tube which hold the muffler body to the head.
References Cited (Backward Citations)
US4111278A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-11-14 | 1987-05-16 | 1987-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-11-14 | 1991-05-16 | 1991-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-11-14 | 1995-05-16 | 1995-11-15 | $7700.00 | Window Closed / Lapsed |