US 7,320,577 B1
Dual pump transmission
Lonnie E. Holder, Sullivan, Ill. (US); Michael Todd, Sullivan, Ill. (US); and Robert E. Trimble, Sullivan, Ill. (US)
Assigned to Hydro-Gear Limited Partnership, Sullivan, Ill. (US)
Filed on Apr. 07, 2005, as Appl. No. 11/100,836.
Application 11/100836 is a continuation of application No. 10/701830, filed on Nov. 05, 2003, abandoned.
Application 10/701830 is a continuation of application No. 10/118263, filed on Apr. 08, 2002, granted, now 6,672,843.
Int. Cl. F04B 1/26 (2006.01); F04B 49/00 (2006.01)
U.S. Cl. 417—270  [417/307] 24 Claims
OG exemplary drawing
 
1. A hydraulic apparatus comprising:
a hydraulic mounting member having a first end, a second end formed opposite the first end and a pair of sides connecting the first and second ends;
a first hydraulic pump and a second hydraulic pump both rotatably mounted on the hydraulic mounting member; and
a pair of system passages formed in and extending through the hydraulic mounting member from the first end to the second end, each system passage comprising a first port in fluid communication with the first hydraulic pump and an opening on the first end of the hydraulic mounting member and a second port in fluid communication with the second hydraulic pump and an opening on the second end of the hydraulic mounting member.