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:
Jan. 06, 2004
Filed:
Jan. 22, 2002
Allen R. Gale, South Bend, IN (US);
Jeffrey K. Arnold, South Bend, IN (US);
Allan W. Blunt, Granger, IN (US);
Leo H. McWilliams, Granger, IN (US);
Honeywell International Inc., Morristown, NJ (US);
Abstract
A combination brake and anti-lock system for a wheeled vehicle such as an aircraft includes an operator controlled source of pressurized hydraulic fluid for selectively applying hydraulic pressure to a hydraulically actuated wheel rotation braking device which responds to the applied hydraulic pressure to apply a braking force to a wheel of the vehicle to thereby arresting wheel motion. There is a low pressure hydraulic fluid return with a normally open hold valve in circuit between the source and the braking device for selectively opening and closing a fluid flow path from the source to the braking device and a normally closed decay valve in circuit between the braking device and the return for selectively opening and closing a fluid flow path from the braking device to the return. A wheel speed sensing device provides an indication of the rotational speed of the wheel and a valve control responds to an indication of a skid indicative wheel speed irregularity from the sensing device to close the normally open valve and open the normally closed valve. The valve control may be disabled manually by an operator on command or automatically upon detecting an anti-skid malfunction.