Dual pump

Details Dual pump Dual pump

2005-10-11

2005-10-11

Freay, Charles G. (Department: 3746)

Pumps

Three or more cylinders arranged in parallel, radial, or...

C092S071000, C091S499000, C060S484000, C060S486000

Reexamination Certificate

active

06953327

ABSTRACT:
A dual pump apparatus having two pumps mounted in a housing, where the housing comprises two elements mounted on opposite sides of a hydraulic mounting member or center section. The pumps are mounted on one side of the hydraulic mounting member in a pump cavity, and the center section and second housing element form a gear cavity in which gears to connect the two pump input shafts are located. Various charge pumps or auxiliary pump configurations are disclosed, including one embodiment where the input shaft gears themselves may act as a charge pump for the pump assembly.

REFERENCES:
patent: 3643433 (1972-02-01), Widmaier
patent: 3680312 (1972-08-01), Forster
patent: 4252508 (1981-02-01), Forster
patent: 4426911 (1984-01-01), Robinson et al.
patent: 5957229 (1999-09-01), Ishii
patent: 6332393 (2001-12-01), Trimble
patent: 6425244 (2002-07-01), Ohashi et al.
patent: 6672843 (2004-01-01), Holder et al.
patent: 2002/0033093 (2002-03-01), Nemoto
patent: 2-135765 (1990-11-01), None
patent: 2000-9023 (2000-01-01), None
patent: 2001-146951 (2001-05-01), None

Affiliated with

Also associated with

Rating

Dual pump does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Dual pump, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dual pump will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3479996