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. 02, 1986
Filed:
Dec. 10, 1985
Applicant:
Inventor:
Wolfgang Kroener, Pforzheim, DE;
Assignee:
Pforzheimer Uhren Rohwerke Porta GmbH, Pforzheim, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G04B / ;
U.S. Cl.
CPC ...
368322 ;
Abstract
In a drive shaft arrangement for a timepiece provided with a minute shaft for carrying a minute hand and an hour sleeve disposed on the minute shaft for carrying an hour hand, the minute shaft is provided with a collar and carries on one side of the collar a minute gear and a pinion gear for rotation with the minute shaft and on the other side the hour sleeve which is provided with an hour gear. The hour gear has a pan-shaped cavity formed in its face adjacent the collar and a Belleville spring is disposed in the pan-shaped cavity so as to abut with its outer circumference the cavity wall and with its radially inner end the collar.