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. 04, 2002
Filed:
Apr. 25, 2000
Dario Bergamo, Venice, IT;
François Biquez, Brignais, FR;
Alstom, Paris, FR;
Abstract
A three-position control apparatus has a control shaft secured to a Maltese cross provided with two drive slots and rotated from a determined angular position to an angular position from among two other determined angular positions. The Maltese cross is rotated in this way by one or the other of two studs fixed to a drive shaft and associated with a cam that is complementary to the Maltese cross. Rotation of the drive shaft is limited by the action of a fixed stop abutment which stops the rotation in each of the two rotation directions at the two chosen starting and finishing end positions, and by a complementary shaft-stopping mechanism that prevents the shafts from rotating from the determined intermediate position by interposing a stop element in the path that is followed by a projecting complementary element carried by one of the shafts as it rotates.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile