Keyless chuck

- Black & Decker Inc.
Skip to: Description  ·  References Cited  · Patent History  ·  Patent History
Description

FIG. 1 is a front perspective view of a keyless chuck showing a first embodiment of my new design.

FIG. 2 is a left side elevational view of the first embodiment.

FIG. 3 is a front elevational view of the first embodiment.

FIG. 4 is a rear elevational view of the first embodiment.

FIG. 5 is a front perspective view of a keyless chuck showing a second embodiment of my new design.

FIG. 6 is a left side elevational view of the second embodiment.

FIG. 7 is a front elevational view of the second embodiment; and,

FIG. 8 is a rear elevational view of the second embodiment.

Referenced Cited
U.S. Patent Documents
146143 January 1874 Olmsted
D361076 August 8, 1995 Shadeck et al.
D366052 January 9, 1996 Barton et al.
3237955 March 1966 McCarty et al.
4154450 May 15, 1979 Derbyshire
4695065 September 22, 1987 Komatsu et al.
4836563 June 6, 1989 Rohm
5031925 July 16, 1991 Tasu et al.
5348318 September 20, 1994 Steadings et al.
5411275 May 2, 1995 Huff et al.
5499828 March 19, 1996 Salpaka et al.
5501473 March 26, 1996 Barton et al.
5531461 July 2, 1996 Huff et al.
5553873 September 10, 1996 Salpaka et al.
Foreign Patent Documents
9002386 February 1991 DEX
9306398 February 1994 DEX
9401141 August 1994 DEX
9405172 November 1994 DEX
9409188 May 1995 DEX
9505477 January 1996 DEX
Patent History
Patent number: D421615
Type: Grant
Filed: Aug 4, 1997
Date of Patent: Mar 14, 2000
Assignee: Black & Decker Inc. (Newark, DE)
Inventors: Stephen Argo (Laytonsville, MD), Donald W. Zurwelle (Lutherville, MD)
Primary Examiner: Antoine Duval Davis
Attorneys: Dennis A. Dearing, John D. Del Ponti, Bruce S. Shapiro
Application Number: 0/74,519
Classifications
Current U.S. Class: Tool Or Work Holder (D15/140); D8/70
International Classification: 1509;