Power valve shield

Details Power valve shield Power valve shield

1989-01-23

1990-06-12

Miles, Tim

Gas and liquid contact apparatus

Fluid distribution

Valved

261DIG6, F02M 720

Patent

active

049331167

ABSTRACT:
A device for preventing damage to the carburetor power valve during engine backfire conditions. The device, which comprises an internal one-way valve and is threaded at one end, is used to replace a throttle body mounting screw on the bottom of the carburetor. Used in conjunction with the device is a means to block the original vacuum port to the power valve and redirect the vacuum through the device.

REFERENCES:
patent: 1155457 (1915-10-01), Witterhahn
patent: 1292613 (1919-01-01), Kessler
patent: 3284063 (1966-11-01), Bickhaus et al.
patent: 3337197 (1967-08-01), Iannelli
patent: 3365179 (1968-01-01), LaForce
patent: 3789702 (1974-02-01), Price
patent: 4224908 (1980-09-01), Bier et al.
patent: 4225536 (1980-09-01), Dougherty et al.

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