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:
Mar. 12, 1991
Filed:
Sep. 18, 1989
James A Wood, Spartanburg, SC (US);
John W Drake, Greenville, SC (US);
American Standard Inc., Spartanburg, SC (US);
Abstract
An axle health discriminatory safety timer arrangement for a railway vehicle braking system including a first logic network connected to a pair of safety timers. The pair of safety timers being connected to a second logic network. The second logic network being connected to a pair of speed difference threshold detection sensors. The pair of speed difference detection sensors being connected to a third logic network. The third logic network being connected to a pair of output circuits. The pair of safety timers are also connected to a fourth logic network. A fifth logic network being connected to the third logic network and also being connected to a sixth logic network. The sixth logic network is connected to a pair of truck cutout circuits for nullifying the slip control on a multiple-truck vehicle for preventing an extended period of time of release of the brake cylinder pressure.