Vibrating hoist

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Description

FIG. 1 is a front elevational view of a vibrating hoist showing my new design;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom side perspective view thereof.

Referenced Cited
U.S. Patent Documents
D134180 October 1942 Parker
D141471 January 1945 Knutson
3526388 September 1970 Geiger et al.
3876182 April 1975 Hansson
Other references
  • The Lowery Co. Brochure, Jul. 20, 1949, p. 4, Electric Hoist, Nos. 1-6, top of page.
Patent History
Patent number: D325276
Type: Grant
Filed: Feb 21, 1989
Date of Patent: Apr 7, 1992
Assignee: National Air Vibrator Company (Houston, TX)
Inventor: Lewis H. Manci (Spring, TX)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Holly H. Baynham
Law Firm: Michael Sand Co.
Application Number: 7/312,968
Classifications
Current U.S. Class: Crane Or Hoist (5) (D34/33)