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:
Oct. 15, 2002
Filed:
Sep. 08, 2000
William T Urmson, Valencia, PA (US);
Frank T. Lenco, Bellevue, PA (US);
John W. Mospan, Pittsburgh, PA (US);
Portec Rail Products, Inc., Pittsburgh, PA (US);
Abstract
A retrofit for an actuator element in a railway track lubricating apparatus for applying lubricant to a rail of a railway track includes a housing with a chamber, an enclosure block, a spacer element for occupying the space in existing actuator elements, a T-shaped plunger with a base adjacent a coil spring, and an actuator stem movable in a bore in the top of the housing, and wherein the stem is supported by and in sealed communication with a bushing that is placed within the cavity of the bore. A hydraulic fluid inlet opening is located at the bottom of the housing and a hydraulic fluid outlet opening is located at the top of the housing. A second embodiment provides an actuator element for use in new lubricating systems whereby the actuator element is mounted onto the rail and does not involve a spacer element in the chamber of the actuator element.