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:
Jun. 01, 1993
Filed:
Apr. 07, 1992
Hans C Petersen, Nordborg, DK;
Tom Tychsen, Gr.ang.sten, DK;
Danfoss A/S, Nordborg, DK;
Abstract
A gear wheel assembly of the type having an externally toothed gear wheel and an internally toothed ring wheel with the gear wheel having one less tooth than the ring wheel and the wheels having eccentrically spaced axes with said gear wheel being rotatable about the gear wheel axis which in turn is orbitable about the ring wheel axis. Each tooth of the gear wheel has a flank on each side of the tip thereof with each said flank having a shallow recess formed thereon. Each such recess has three successive curved sections with each such recess starting and ending with the same tangent as the respective adjacent part of the associated flank. With this gear construction an automatic braking action is generated in the absence of hydraulic pressure.