Digital depth meter

- Signet Scientific Co.
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Description

FIG. 1 is a top, front, left side perspective view of a digital depth meter showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a rear 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 of a second embodiment of that shown in FIG. 1; and

FIG. 8 is a rear elevational view of that shown in FIG. 7.

Referenced Cited
U.S. Patent Documents
D191581 October 1961 Scharfenberg et al.
D198913 August 1964 Smith
D233152 October 1974 Knutson
3588795 June 1971 Linardos et al.
4413518 November 8, 1983 Jones
Other references
  • Practical Electronics, 5/81, p. 48, Digisounder. Powerboat & Fishing Instruments Buyers Guide, 1982, pp. 43-53, Depth Sounders.
Patent History
Patent number: D281148
Type: Grant
Filed: Apr 25, 1983
Date of Patent: Oct 29, 1985
Assignee: Signet Scientific Co. (El Monte, CA)
Inventors: Rebecca A. Highstreet (Azusa, CA), Raymond G. Shield (West Covina, CA), Nancy A. Jensen (Pasadena, CA)
Primary Examiner: Bernard Ansher
Assistant Examiner: Terry Pfeffer
Law Firm: Pretty, Schroeder, Brueggemann & Clark
Application Number: 6/488,122
Classifications
Current U.S. Class: Linear Or Distance (9) (D10/70)