Impact wrench

- S.P. Air Kabusiki Kaisha
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Description

FIG. 1 is a right side elevation of an impact wrench of a first embodiment of the present invention showing a detail of texturing used on a grip of the wrench;

FIG. 2 is a left side elevation of the wrench of the first embodiment;

FIG. 3 is a front elevation of the wrench of the first embodiment;

FIG. 4 is a rear elevation of the wrench of the first embodiment;

FIG. 5 is a top plan of the wrench of the first embodiment; and

FIG. 6 is a bottom plan of the wrench of the first embodiment;

FIG. 7 is a right side elevation of an impact wrench of a second embodiment of the present invention;

FIG. 8 is a left side elevation of the wrench of the second embodiment;

FIG. 9 is a front elevation of the wrench of the second embodiment;

FIG. 10 is a rear elevation of the wrench of the second embodiment;

FIG. 11 is a top plan of the wrench of the second embodiment; and,

FIG. 12 is a bottom plan of the wrench of the second embodiment.

The broken lines shown in the drawings indicate features which form no part of the design.

Referenced Cited
U.S. Patent Documents
RE35617 September 30, 1997 Krivec
D205091 June 1966 Averitt
D223134 March 1972 Bunyea
D256771 September 9, 1980 Kitagawa et al.
D256980 September 23, 1980 Adams et al.
D288769 March 17, 1987 Doman
D288770 March 17, 1987 Doman
D289136 April 7, 1987 Doman
D294001 February 2, 1988 Greenlee et al.
D299411 January 17, 1989 Porcaro
D313736 January 15, 1991 Boliver et al.
D316019 April 9, 1991 Belanger
D319763 September 10, 1991 Reiferscheid
D324801 March 24, 1992 Caskey et al.
D324802 March 24, 1992 Caskey et al.
D327830 July 14, 1992 Fisher
D329580 September 22, 1992 Sasaki et al.
D344000 February 8, 1994 Shibata et al.
D360129 July 11, 1995 Guegan et al.
D364544 November 28, 1995 Izumisawa
D388678 January 6, 1998 Bantly et al.
D393580 April 21, 1998 Bantly et al.
D394995 June 9, 1998 Cooper
D400074 October 27, 1998 Cooper
D403564 January 5, 1999 Izumisawa
D410830 June 8, 1999 Pusateri et al.
2829285 April 1958 Steiner et al.
3352368 November 1967 Maffey, Jr.
3605914 September 1971 Kramer
3661217 May 1972 Maurer
3833068 September 1974 Hall
3880245 April 1975 Anderson, Jr.
3924961 December 1975 Hess et al.
3951217 April 20, 1976 Wallace et al.
4379492 April 12, 1983 Hiraoka
4778015 October 18, 1988 Jacobsson
5083619 January 28, 1992 Giardino et al.
5199505 April 6, 1993 Izumisawa
5269733 December 14, 1993 Anthony, III
5377769 January 3, 1995 Hasuo et al.
5918686 July 6, 1999 Izumisawa
6062323 May 16, 2000 Pusateri et al.
Foreign Patent Documents
0849052A2 June 1998 EPX
Other references
  • Ingersoll-Rand publication entitled, "Ingersoll-Rand Automotive Power Tools Catalog," 1996, pp. 1, 8-9, 11-17, 23 and 41. Mermaid Distributors publication entitled, "Shinano Pneumatic Ind. Inc.," published at least as early as Oct. 5, 1999. Coventrys publication entitled, "Conventrys SP Air," Sep. 1994. SP Air Corporation publication entitled, "1/2 [inch] Square Drive Impact Wrenches," published at least as early as Oct. 5, 1999. Shinano Pneumatic Industries Inc. publication entitled, "SP Air," published at least as early as Oct. 5, 1999. Shinano Pneumatic Industries Inc. publication entitled, "SP Pneumatic Tools," published as early as Oct. 5, 1999, pp. 1-2, 7-12 and 15. Burson Auto Parts publication entitled, "Burson Auto Parts SP Air," published at least as early as Oct. 5, 1999. Viking Air Tools untitled publication, Aug. 1990.
Patent History
Patent number: D434298
Type: Grant
Filed: Dec 6, 1999
Date of Patent: Nov 28, 2000
Assignee: S.P. Air Kabusiki Kaisha (Nagano Pref.)
Inventor: Osamu Izumisawa (Tokyo)
Primary Examiner: Antoine Duval Davis
Law Firm: Senniger, Powers, Leavitt & Roedel
Application Number: 0/115,045
Classifications
Current U.S. Class: D 8/68
International Classification: 0805;