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:
May. 19, 1981
Filed:
Jun. 28, 1979
Applicant:
Inventors:
Pierre Patin, Paris, FR;
Jean Plagne, St-Maur-des-Fosses, FR;
Assignee:
Regie Autonome des Transports Parisiens, Paris, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B65G / ;
U.S. Cl.
CPC ...
198851 ; 198334 ;
Abstract
The chain has a single direction of curvature and is capable of passing over pinions of small diameter. This chain is made up of a classic chain comprising at regular intervals a link to which is fixed a block having at least two rectilinear coplanar faces and tangent to the pins of the links and each extending over a length equal to the interval respectively from one part to the other of the link. An application of this chain consists in a variable speed handrail.