Sonic web break detector for printing presses

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Description

FIG. 1 is a perspective view of a sonic web break detector for printing presses showing my new design;

FIG. 2is a right side elevational view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
D261118 October 6, 1981 Perhacs, Jr.
D261629 November 3, 1981 Doheny
D271573 November 29, 1983 Wada et al.
D273572 April 24, 1984 Wada et al.
3928844 December 1975 Meihofer
3987665 October 26, 1976 Hansen
4221329 September 9, 1980 Schneider
4335603 June 22, 1982 Locke
4493065 January 8, 1985 Sword, Jr.
4519249 May 28, 1985 Hunt
Other references
  • U.S. Patent Application Entitled: "Sonic Web Break Detector"; Ser. No. 390,783; filed 8/8/89; Inventor: Gnuechtel et al.
Patent History
Patent number: D320760
Type: Grant
Filed: Aug 8, 1989
Date of Patent: Oct 15, 1991
Assignee: Web Printing Controls Co., Inc. (Lake Barrington, IL)
Inventor: Herman C. Gnuechtel (Arlington Heights, IL)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Marcus Jackson
Law Firm: Welsh & Katz, Ltd.
Application Number: 7/390,913
Classifications
Current U.S. Class: Element Or Attachment (D10/121); D10/104