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. 21, 1992
Filed:
Feb. 28, 1990
Applicant:
Inventors:
Angel P Bezos, Rockville, MD (US);
Emilio A Fernandez, McLean, VA (US);
Assignee:
Pulse Electronics, Inc., Rockville, MD (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B61L / ;
U.S. Cl.
CPC ...
36442404 ; 340452 ; 2461 / ;
Abstract
A railroad brake pressure recorder for use with both analogue and digital break pressure manifolds monitors the signal on its analogue air brake pressure input connector. If the signal on this input exceeds a predetermined frequency, inputs are processed as coming from an analogue manifold. If it is less than this frequency, the inputs are processed as coming from a digital manifold.