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:
May. 16, 2017
Filed:
Jul. 13, 2015
Applicant:
TD Ip Holdco, Llc, Waterford, MI (US);
Inventor:
Leon Yulkowski, Bloomfield Hills, MI (US);
Assignee:
TD IP HOLDCO, LLC, Waterford, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 47/02 (2006.01); E05F 15/53 (2015.01); E05F 1/00 (2006.01); E05F 3/10 (2006.01); F16H 35/00 (2006.01);
U.S. Cl.
CPC ...
F16H 47/02 (2013.01); E05F 1/002 (2013.01); E05F 3/102 (2013.01); E05F 15/53 (2015.01); F16H 2035/003 (2013.01);
Abstract
A gear assembly comprises a housing, a first gear shaft in the housing, a first spiral gear coupled to the first gear shaft in the housing, a second gear shaft in the housing, a second spiral gear coupled to the second gear shaft in the housing, and a fluid connection between a first chamber and a second chamber. The first spiral gear and the second spiral gear couple to define the first chamber and the second chamber within the housing.