Split gear pump mechanism with gear offset

Details Split gear pump mechanism with gear offset Split gear pump mechanism with gear offset

Filed on

1990-10-26

Date issued

1992-03-03

Examiner

Bertsch, Richard A.

Patent Class

Rotary expansible chamber devices

SubClass

Methods

Other Related Categories

418200, 4182013, F04C 218

Type

Patent

Status

active

Patent number

050927515

Description

ABSTRACT:
The invented split gear mechanism replaces a standard single spur gear used within metering pumps and operates in conjunction with a similar driven split gear mechanism. The invention includes two or more layered gear pairs, each layer being re-indexed at a slightly altered fixed orientation relative to a given index point. The invention is typically used within "precision metering pumps" used, for example, in the textile industry. The invention facilitates uniformity by reducing pulsations generated by existing pumps. A method for reducing pulsations in pumping tasks is also included.

REFERENCES:
patent: 621280 (1899-03-01), Pitt
patent: 2236980 (1941-04-01), Ungar
patent: 2382042 (1945-08-01), Etnyre
patent: 2982221 (1961-05-01), Whitfield
patent: 3272140 (1966-09-01), Curry et al.
patent: 4277230 (1981-07-01), Muller
patent: 4761125 (1988-08-01), Inagaki et al.
patent: 4907954 (1990-03-01), Slupski

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