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:
Nov. 22, 1977
Filed:
May. 05, 1976
Applicant:
Inventors:
Ulrich Bar, Nuremberg, DT;
Martin Schmidt, Erlangen, DT;
Assignee:
Siemens Aktiengesellschaft, Berlin & Munich, DT;
Primary Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
353103 ; 353117 ;
Abstract
A slide projector comprising a slide magazine with a motor drive, a motor-driven pusher for conveying respective slides one by one from the slide magazine into the path of the light of an optical system, and a guide unit for guiding the slides. A mechanical stop is provided for establishing the projection position of the slides and a spring is interposed between the pusher and its motor drive for transmitting force therebetween. For displacing the pusher there is provided a roller guided in a curved slot in a disk connected to the motor.