Impact wrench

- S.P. Air Kabasiki Kaisha

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Description

FIG. 1 is a right side elevation of an impact wrench of the present invention, the left side elevation being a mirror image of the right side elevation;

FIG. 2 is a front elevation of the wrench;

FIG. 3 is a rear elevation of the wrench;

FIG. 4 is a top plan of the wrench; and,

FIG. 5 is a bottom plan of the wrench.

Referenced Cited
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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 Jan. 26, 2000. Coventrys publication entitled, "Coventrys SP Air," Sep. 1994. SP Air Corporation publication entitled, "1/2 [inch] Square Drive Impact Wrenches," published at least as early as Jan. 26, 2000. Shinano Pneumatic Industries Inc. publication entitled, "SP Air," published at least as early as Jan. 26, 2000. Shinano Pneumatic Industries Inc. publication entitled, "SP Pneumatic Tools," published at least as early as Jan. 26, 2000, pp. 1-2, 7-12 and 15. Burson Auto Parts publication entitled, "Burson Auto Parts SP Air," 1994. Viking Air Tools untitled publication, Aug. 1990.
Patent History
Patent number: D434958
Type: Grant
Filed: Jan 26, 2000
Date of Patent: Dec 12, 2000
Assignee: S.P. Air Kabasiki Kaisha (Nagano Pref.)
Inventor: Osamu Izumisawa (Tokyo)
Primary Examiner: Antoine Duval Davis
Law Firm: Senniger, Powers, Leavitt & Roedel
Application Number: 0/117,546
Classifications
Current U.S. Class: D 8/68
International Classification: 0805;