Chain block

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Description

FIG. 1 is a perspective view of a chain block taken from the top, front, right side thereof;

FIG. 2 is a perspective view of the chain block in FIG. 1 taken from the bottom, rear, left side thereof;

FIG. 3 is a perspective view of the body of the chain block in FIG. 1 taken from the front, right side thereof;

FIG. 4 is a perspective view of the chain block body in FIG. 3 taken from the rear, left side thereof;

FIG. 5 is a perspective view of the pendant switch assembly of the chain block in FIG. 1 taken from the top, front, right side thereof;

FIG. 6 is a perspective view of the chain block pendant switch assembly in FIG. 5 taken from the front, right side thereof; and,

FIG. 7 is a perspective view of the chain block pendant switch assembly in FIG. 5 taken from the rear, left side thereof.

The chain block is shown without the pendant switch in FIGS. 3 and 4 and the pendant switch is shown by itself in FIGS. 5-7 for convenience of illustration.

Claims

The ornamental design for the chain block, as shown and described.

Referenced Cited
U.S. Patent Documents
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D152124 December 1948 Parker
2608004 August 1952 Pinanski
3139268 June 1964 Carroll
3370832 February 1968 Spyridakis
D220772 May 1971 Hawkins et al.
4097024 June 27, 1978 Schreyer
4218046 August 19, 1980 Bathum et al.
D307659 May 1, 1990 Kobayashi et al.
D307965 May 15, 1990 Eley et al.
D309969 August 14, 1990 Tamura
D347508 May 31, 1994 Kubota et al.
D377555 January 21, 1997 Ueno
D407175 March 23, 1999 Nishimura
D411364 June 22, 1999 Sasaki et al.
D421172 February 22, 2000 Mizutani et al.
D438358 February 27, 2001 Huang
D439722 March 27, 2001 Huang
D459048 June 18, 2002 Leemans
D471338 March 4, 2003 Hodge
D473992 April 29, 2003 Hodge
D475499 June 3, 2003 Hodge
D491333 June 8, 2004 Blasek
Patent History
Patent number: D524508
Type: Grant
Filed: Feb 5, 2004
Date of Patent: Jul 4, 2006
Assignee: Demag Cranes & Components GmbH (Wetter)
Inventor: Uwe Lichtenvort (Essen)
Primary Examiner: Cynthia E. Ramirez
Attorney: Van Dyke, Gardner, Linn & Burkhart, LLP
Application Number: 29/198,853
Classifications
Current U.S. Class: Crane Or Hoist (5) (D34/33)