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:
Jul. 04, 1978
Filed:
Jul. 01, 1976
Josef Helmer, Aich, DE;
Abstract
A brake drum for braking a transmission member of a planetary gear change-speed transmission, with a cylinder provided on its outside with a cylindrical brake surface for the engagement of a brake band to engage a speed and on its inside with engaging surfaces for the non-rotatable mounting of clutch lamellae of a clutch operating on the transmission member, and with a drive flange which is coaxial and non-rotatable with respect to the cylinder and which is connected for rotation in unison with the transmission member. The cylinder is constructed double-walled by means of a collar provided with the brake surface while the cylinder section disposed on the inside of the collar is constructed in one piece with the drive flange.