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.

Date of Patent:
Mar. 28, 2000

Filed:

Mar. 31, 1998
Applicant:
Inventors:

Robert J Alderman, Canyon Lake, TX (US);

James E Taylor, Seguin, TX (US);

Ernest Craig Abney, Deltona, FL (US);

Ernest Abney, Winter Garden, FL (US);

Assignee:
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E04G / ;
U.S. Cl.
CPC ...
5274912 ; 5274611 ; 524041 ; 52478 ; 242557 ; 2425985 ; 2426103 ;
Abstract

An apparatus for moving a carriage along a roof structure of the type having a plurality of purlins spaced apart from one another in a parallel arrangement, and method of using same are disclosed. The apparatus includes a grappling member mounted for movement along the length of a first one of the plurality of purlins. The grappling member is adapted to be temporarily placed into a locked position so that the grappling member is fixed with respect to the first purlin. A tension member operatively connects the grappling member to the carriage. A pulling device is used to pull on the tension member so as to shorten the distance between the grappling member and the carriage, thereby advancing the carriage along the length of the purlins in a direction towards the grappling member when the grappling member is in the locked position.


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