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US3556735A Expired / Lapsed US ⏱️ 0.0 years remaining

Muffler adapted to purify the exhaust gases of internal combustion engines

Assignee: Individual
•
Filing: 1967-06-23
•
Granted: 1971-01-19
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Expires: 1987-06-23
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Abstract

Abstract A MUFFLER WHICH SILENCES AND PURIFIES EXHAUST GASES AND IS ADAPTED TO BE ASSEMBLED AND EASILY DISMANTLED FOR CLEANING WITHOUT REMOVING THE OUTER SHELL, THE MUFFLER COMPRISING A TUBULAR ELONGATED SHELL HAVING STRAIGHT SIDES, INLET AND OUTLET AND COVERS FOR THE OPEN ENDS, LONGITUDINAL BOLTS WHICH PRESS THE ACTIVE PURIFYING MEANS IN PROPER POSITION WITHIN THE SHELL, THE BOLTS BEING TREADED AT THE ENDS PASSING THROUGH THE COVERS, THE TREADED ENDS ENGAGING NUTS AND THE PURIFYING MEANS INCLUDING POROUS PACKING ELEMENTS WITHIN THE SHELL WHICH ARE ALSO RETAINED WITHIN PAIRS OF PERFORATED PARTITIONS BY THE BOLTS. THE END NUTS, WHEN LOOSENED, OPEN THE COVERS AND PERFORATED PARTITIONS TO PERMIT REPLACEMENT AND/OR CLEANING OF THE PACKING ELEMENTS. THE PURIFYING MEANS INCLUDES MEANS WHICH DESTROY THE CARBON MONOXIDE. THE RELATIONSHIP BETWEEN THE PERFORATED COVERS, THE PACKING ELEMENTS AND THE SHELL IS SUCH AS TO PROVIDE A CHAMBER THROUGH WHICH THE EXHAUST GASES PASS AND A FILTER SECTION THROUGH WHICH ALL OF THE EXHAUST GASES FLOW.

Inventors

  • 👤 Jacobo Epelman

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 13:05
CPC Classifications
F; F01; F01N; F01N3/00; F01N3/02; F01N3/021; F01N3/0215; F01N13/00; F01N13/009; F01N13/0097; F01N3/033; F01N3/0335; F01N3/08; F01N3/10; F01N3/24; F01N3/28; F01N3/2839; F01N3/2882; F01N3/2885; F01N1/00; F01N1/08; F01N1/089; F01N2230/00; F01N2230/02; F01N2230/04; F01N2250/00; F01N2250/02; F01N2330/00; F01N2330/10; F01N2450/00; F01N2450/30; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1974-01-18 1974-07-20 1975-01-19 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-01-18 1978-07-20 1979-01-19 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-01-18 1982-07-20 1983-01-19 $7700.00 Window Closed / Lapsed

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