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:
May. 21, 2002
Filed:
Nov. 19, 1999
Savvas K. Constantinides, Fresno, CA (US);
Ted D Smith, S. Fresno, CA (US);
TSE Brakes, Inc., Fresno, CA (US);
Abstract
Disclosed is an easily removable and replaceable filter for attachment to the breather holes in the housing of a spring or service brake actuator. The invention has a hollow shaft and flange for snap fitment into a brake actuator breather hole, and includes a plurality of ventilation openings and a membrane made of material which allows air to pass into and out of the spring brake housing, while keeping foreign material out. The present invention may be easily adapted for use on any of a large number of existing spring or service brake housing assemblies (including piston, diaphragm, dual-diaphragm, dual-piston, and/or piston & diaphragm) at minimal cost. When the filter(s) of the present invention are installed, any unused breather openings in the spring brake housing should be plugged so that all air is filtered through the membrane in the filter.