Adustable pipe clamp

- Hirsh Company
Description

FIG. 1 is a perspective view of an adjustable pipe clamp showing our new design;

FIG. 2 is an enlarged front elevational view thereof;

FIG. 3 is an enlarged rear elevational view thereof;

FIG. 4 is an enlarged left side elevational view thereof, the right side being a mirror image;

FIG. 5 is an enlarged top plan view thereof; and

FIG. 6 is an enlarged bottom plan view thereof.

The pipe is shown in broken lines for illustrative purposes only.

Referenced Cited
U.S. Patent Documents
9294 October 1852 Butler
24194 May 1859 Clarkson
97376 November 1869 Fenner
292207 January 1884 Corbett
307439 November 1884 Corbett
319517 June 1885 Sheldon
324803 August 1885 Bancroft
404368 May 1889 Stearns
410815 September 1889 Tarbell
749732 January 1904 Hanson et al.
875302 December 1907 Verdin
926030 June 1909 Stout
927067 July 1909 Offineer
946140 January 1910 Knoke
974240 November 1910 Darr
977695 December 1910 Anderson
1004743 October 1911 Cobb
1201461 October 1916 Hargrave
1356136 October 1920 Gaul
1503606 August 1924 Singleton
1577868 March 1926 Muller
1638848 August 1927 Hargrave
1783713 December 1930 Holman
2061217 November 1936 Watcher
2221325 November 1940 Holman
2391143 December 1945 Ertner
2581317 January 1952 Zabich
2675839 April 1954 Beasley
2815778 December 1957 Holman
2923334 February 1960 Brennan, Jr.
2949947 August 1960 Story
2973792 March 1961 Fonken
4257584 March 24, 1981 Sterling
Other references
  • Advertising Sheet (81/2".times.11", 2 sides) entitled, "Hirsh Ultra Clamp Adjustable Bar Clamp. " .COPYRGT.1981.
Patent History
Patent number: D279646
Type: Grant
Filed: Sep 16, 1982
Date of Patent: Jul 16, 1985
Assignee: Hirsh Company (Skokie, IL)
Inventors: Irwin J. Ferdinand (Glencoe, IL), Richard Sylvan (Glenview, IL), Herbert Baisch (Palatine, IL)
Primary Examiner: Susan J. Lucas
Assistant Examiner: Clare E. Heflin
Law Firm: Dressler, Goldsmith, Shore, Sutker & Milnamow, Ltd.
Application Number: 6/418,735
Classifications
Current U.S. Class: D 8/72