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:
Dec. 08, 2015
Filed:
Mar. 17, 2010
Applicants:
Rob Oolderink, Ootmarsum, NL;
Ermanno Nizzoli, Fahrwangen, CH;
Hendrik Vandenbruaene, Tielt, BE;
Inventors:
Assignee:
QUADRANT EPP AG, Lenzburg, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 39/10 (2006.01); B29D 15/00 (2006.01); B29C 37/00 (2006.01); B29L 15/00 (2006.01); F16H 55/06 (2006.01);
U.S. Cl.
CPC ...
B29D 15/00 (2013.01); B29C 37/0082 (2013.01); B29C 39/10 (2013.01); B29L 2015/003 (2013.01); F16H 55/06 (2013.01); Y10T 74/19828 (2015.01); Y10T 428/211 (2015.01);
Abstract
Composite gear blanks are manufactured by placing a rigid centerpiece in a mold, optionally inertizing the mold, filling the mold by adding a liquid reactive mixture around the centerpiece, applying static pressure to the mold and polymerizing the reactive mixture so as to form a plastic outer part surrounding the centerpiece. The composite gear blanks thus made have improved values of normal and shear adhesion strength both at room temperature and at elevated temperatures of up to 120° C. and are particularly suited for making worm gear parts of automotive electronic power steering systems.