Gear pump with gears having curved teeth and method of...

Details Gear pump with gears having curved teeth and method of... Gear pump with gears having curved teeth and method of...

2006-05-09

2006-05-09

Freay, Charles G. (Department: 3746)

Pumps

Processes

C417S410400, C418S201300

Reexamination Certificate

active

07040870

ABSTRACT:
A gear pump and method for pumping elastomeric material having two gears with meshing herringbone gear teeth. Each of the gear teeth has helical side portions and a curved central portion which extends circumferentially of the gear a distance equal to at least one half the pitch of the gear teeth to provide a continuous squeezing contact between the teeth of the two gears for pumping a uniform strip of elastomeric material from the gear pump.

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European Search Report—Dated Apr. 29, 2005—4 pages.

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