Exhaust backpressure tester

Details Exhaust backpressure tester Exhaust backpressure tester

1988-01-04

1989-12-12

Tokar, Michael J.

Measuring and testing

Vehicle drive train

Rear end

73756, G01M 1500, G01L 700

Patent

active

048859346

ABSTRACT:
A method and apparatus for determining exhaust backpressure in which a bore is created in the wall of a manifold, pipe, muffler, of the like which is in fluid communication with an exhaust port of an internal combustion engine. A pressure-indicating device of the type having an elongate probe is inserted through the bore in unsealed and unthreaded relation therewith. After reading the backpressure indicated by the device, the probe is withdrawn and a plug is frictionally engaged with the bore thereby sealing against exhaust leakage.

REFERENCES:
patent: 3338102 (1967-08-01), Cain
patent: 3797317 (1974-03-01), Peterson, Jr.
patent: 3978719 (1976-09-01), Hadden et al.
patent: 4289027 (1981-09-01), Gleaves et al.
patent: 4414851 (1983-11-01), Maglic
patent: 4449412 (1984-05-01), Fallon et al.
patent: 4515019 (1985-05-01), Woodfill
patent: 4577511 (1986-03-01), Wetzel
patent: 4599902 (1986-09-01), Ferris
patent: 4630480 (1986-12-01), Betterton et al.
MPEP, pp. 700-14,15, 600-28,24, 700-29,30,31,32,33,34.

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