Electromagnetic radiated signal transmitter

Skip to: Description  ·  References Cited  · Patent History  ·  Patent History
Description

FIG. 1 is a top, front and left side perspective view of an electromagnetic radiated signal transmitter showing our new design;

FIG. 2 is a left side elevational view;

FIG. 3 is a right side elevational view;

FIG. 4 is a front elevational view;

FIG. 5 is a rear elevational view;

FIG. 6 is a top plan view; and,

FIG. 7 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
D162750 April 1951 Polye et al.
D175284 August 1955 Wagenseller
D175591 September 1955 Darr
D193931 October 1962 Bagshaw
D223293 April 1972 Banks
D232660 September 1974 McKenney
D273039 March 13, 1984 Behrens
3906504 September 1975 Guster et al.
4044299 August 23, 1977 Weber
4303879 December 1, 1981 Podhrasky
4348639 September 7, 1982 Karbowski
4387340 June 7, 1983 Peterman
4452075 June 5, 1984 Bockhorst et al.
4806869 February 21, 1989 Chau et al.
4837489 June 6, 1989 McFee
Foreign Patent Documents
63-26526 April 1988 JPX
Other references
  • "3D-301A Pipe-Cable Locator/Tracer" brochure. "Dynatel 4420 Power Cable/Fault Locator Operator's Manual". "TELTRAK 2001", Metrotech brochure. "Dynatel Locator--573DX and 573D Sheath Fruit/Cable Locators--500D Cable Locator". SLIMDRIL brochure. "Locator Cuts Time to Find Underground Cable Faults", a 3M Technical Article. "Dynatel 500A Cable Locator" brochure. "Dynatel 500A/P Cable Locator and Dynatel 573A/P Earth Return Fault and Cable Locator Operator's Manual". "Metrotech Model 810 Fully Automatic Utility Line Tracer" brochure. "The Lynch PL55 Pipeline and Cable Locator" brochure. "The Lynch PL-801GXII Pipeline and Cable Locator" brochure. "Micro-Computerized Pipe Locator MPL-H5-E" brochure. "Dynatel Cable and Earth Fault Locators for Electrical Power Applications" brochure. "RD800: Guided Boring Tool Monitor".
Patent History
Patent number: D328257
Type: Grant
Filed: Apr 23, 1990
Date of Patent: Jul 28, 1992
Assignee: The Charles Machine Works, Inc. (Perry, OK)
Inventors: Tommy K. Ormand (Perry, OK), Mitchell H. Babkes (Wichita, KS), Benjamin C. Baugh (Wichita, KS), John W. Bieberdorf (Stillwater, OK)
Primary Examiner: Donald P. Walsh
Assistant Examiner: Antoine D. Davis
Law Firm: Banner, Birch, McKie & Beckett
Application Number: 7/513,186