A-frame tripod truss for a scaffold

Description

FIG. 1 is a perspective view of the A-frame tripod truss for a scaffold shown in open position;

FIG. 2 is a perspective view thereof with the extensions retracted, and the crossbars exploded;

FIG. 3 is a perspective view thereof with the attachments and crossbars exploded;

FIG. 4 is a perspective view thereof with the arm in folded position;

FIG. 5 is a perspective view of the A-frame tripod truss for a scaffold shown in collapsed position;

FIG. 6 is a front elevational view thereof;

FIG. 7 is a right side elevational view thereof, the left side being identical;

FIG. 8 a rear elevational view thereof;

FIG. 9 is a top plan view thereof;

FIG. 10 is a bottom plan view thereof;

FIG. 11 is a front elevational view of FIG. 1;

FIG. 12 is a right side elevational view thereof, the left side being identical thereto;

FIG. 13 is a rear elevational view thereof;

FIG. 14 is a top plan view thereof; and,

FIG. 15 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
865858 September 1907 Bonenberger
3098540 July 1963 Hiner
Patent History
Patent number: D433761
Type: Grant
Filed: Feb 9, 1998
Date of Patent: Nov 14, 2000
Inventor: Robert M. Phillips (Dennis, MA)
Primary Examiner: Doris Clark
Attorney: Thomas A. Kahrl, Esq.
Application Number: 0/83,791
Classifications
Current U.S. Class: Stair, Ladder, Scaffold, Or Similar Support (D25/62)
International Classification: 2504;