The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 21, 2015
Filed:
Nov. 17, 2010
Applicants:
Jeffrey M. Merth, Oakdale, MN (US);
Shawn Auxier, Madison, IN (US);
Inventors:
Jeffrey M. Merth, Oakdale, MN (US);
Shawn Auxier, Madison, IN (US);
Assignee:
Stac, Inc., St. Paul, MN (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B62D 21/00 (2006.01); F16K 49/00 (2006.01); F16L 53/00 (2006.01); B60P 3/22 (2006.01); F04B 17/05 (2006.01);
U.S. Cl.
CPC ...
F04B 17/05 (2013.01); Y10T 29/49236 (2013.01); B60P 3/2245 (2013.01);
Abstract
Separate from the vehicle's engine, a self-contained internal combustion engine supplies hydraulic power to drive a product pump on a bobtail. The self-contained engine, which can itself run on propane, is provided as part of a preassembly which includes the hydraulic pump, the hydraulic fluid tank, a heat exchanger, and a solenoid controlled start-up valve. The preassembly is mounted as a unit to the side of the bobtail in front of the rear wheels, powering the product pump at the rear of the bobtail while the vehicle's engine is off.