Connector for a single strut mine roof truss


FIG. 1 is a bottom, front isometric view of a connector for a single strut mine roof truss showing my new design;

FIG. 2 is a bottom, rear isometric view thereof;

FIG. 3 is a left end elevational view thereof;

FIG. 4 is a right end elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a front elevational view thereof; and

FIG. 8 is a sectional view taken in the direction of the arrows on line 8--8 of FIG. 1.

Referenced Cited

U.S. Patent Documents

D275452 September 11, 1984 Payne
3427811 March 1967 White
3505824 February 1969 White
3601994 August 1971 Galis
4395161 July 26, 1983 Wilson et al.
4456405 June 26, 1984 Galis
4498816 February 12, 1985 Korpela et al.

Other references

  • Design of Supports in Mines by Cemal Biron et al., [pp. 105, 119, 421]. Double Bolt Truss, from F. M. Locotos Co., Inc., [one page]. Current Trends . . . , by C. P. Mangelsdorf, [pp. 108, 110]. Mine Roof Truss System, from Hansen Corp., [one page]. Page 17 of Unidentified Article--Comprising Figures 8 and 9. Pattin Truss System advertisement.

Patent History

Patent number: D292670
Type: Grant
Filed: Jan 28, 1985
Date of Patent: Nov 10, 1987
Inventor: Ben L. Seegmiller (Salt Lake City, UT)
Primary Examiner: B. J. Bullock
Attorney: Lynn G. Foster
Application Number: 6/695,785


Current U.S. Class: D/8382; D/8399