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. 17, 1991
Filed:
Dec. 19, 1990
Cyril F Tetherton, Poway, CA (US);
Cubic Automatic Revenue Collection Group, San Diego, CA (US);
Abstract
A turnstile is made with a stationary turnstile support shaft extending from a solid support, and a bearing on the end of the shaft. The turnstile hub is supported on the end of the shaft with a bearing. The turnstile hub is locked against rotation in a fee-paid direction by a unidirectional pawl that engages a cutout on a ratchet plate attached to the hub. The unidirectional pawl is released by energizing a solenoid latching mechanism, rather than acting directly on the unidirectional pawl. Backcocking of the turnstile is prevented by a bidirectional pawl that engages notches on the ratchet plate. The bidirectional pawl is released by energizing a second solenoid latching mechanism, rather than acting directly on the bidirectional pawl.