Impact wrench

- K.K.U. Limited
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Description

FIG. 1 is a left side view of an impact wrench showing my design;

FIG. 2 is a rear view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a front view thereof; and,

FIG. 6 is a bottom view thereof.

Referenced Cited
U.S. Patent Documents
D357849 May 2, 1995 Izumisawa
D358314 May 16, 1995 Izumisawa
D364544 November 28, 1995 Izumisawa
4886215 December 12, 1989 Ruud
5035161 July 30, 1991 Huang
Other references
  • Rodac Industrial Air Tools, Catalog RIT75, RODAC 4100 Air Hammer. Zone King Industrial Co., Ltd., ZK 502 Air Impact Wrench. RF Air Tools, RF-101, 102&103 Air Hammers, dated Aug. 15, 1995. Automotive Power Tools, Ingersoll-Rand Catalog, 1R206, 207, 2131, 2131-2, 244, 244-2, 231, & 231-2 Air impact wrenches, no date given. Chicago Pneumatic Automotive Air Tools, pp. 5 and 7, no date given. Matco Tool and Equipment, 1992-93, pp. 162-164. Air Tools, 1992, Mechanics Products.RTM. Catalog, p. 2. Ingersoll-Rand, 1992 Catalog Form No. 52114A, front and back covers. Chicago Pneumatic Automotive Air Tools, 1990, front cover, Impact wrench cover sheet, CP-778 air sander and Drills coversheet. Florida Pneumatic Catalog. No date given. Dynabrade Automotive Finishing Systems, 1992. Buffalo Tools and Accessories, 1992. Astro Power, Astro Pneumatic Tool Company, no date given. Viking Air Tools Catalog, no date given. Mac Tools Catalog, no date given. Raider Air Tools Catalog, by Florida Pneumatic. No date given. Sioux Tools, Inc., Catalog No. 90A, no date given. Snap-On Worldwide Catalog, no date given. Sunex Automotive Tools & Equipment, 1990-91. Zzone King Air Impact Wrench Model ZK-508, Zone King Industrial Co. Ltd. Catalog, Aug. 15, 1995. Pneumatic Tool, Second From Top, Chicago Pneumatic "Automotive Air Tools" Catalog, Front Cover, Mar. 1990. Pneumatic Tool, Middle of Page, Chicago Pneumatic "Automotive Air Tools" Catalog, p. 2. Mar. 1990. Ingersoll-Rand, 1992, form 52114A. Chicago Pneumatic Automotive Air Tools, 1990, CP-778 hi-speed air sander and drills, p. 44. Florida Pneumatic Air Tools catalog, FP-723, 725, 500, 734, 732, 742, 742L, 750, 2000,2100, 888,889, 788A, 3251, 3501, 4025A, 3050, no date given. Dynabrade Automotive Finishing Systems, 1992, p. 10. Buffalo Tools and Accessories, 1992, air sander 5-HS & air impact wrenches 538 p.14 SS1-12T. Viking Air Tools product catalog, no date given. Raider Air Tools, Florida Pneumatic, page showing R-910, R-915 & R-917 sanders. no date given. Sioux Tools, Inc. Automotive Tools and Equipment Catalog, no date given. Rodac Industrial Air Tools, Catalog RIT 75, no date given. Zone King Industrial Co., Ltd., Air impact wrench ZK-50F, no date given. RF Ait Rools catalog sheet showing RF-502 air impact wrench, dated. Automotive Power Tools, Ingersoll-Rand Catalog, 3 pages showing IR206, IR207, IR2131, IR2131-2, IR244 thru IR231-2, and IR317 thru IR319. no date given. Air Tools, 1992, p. 2.
Patent History
Patent number: D396620
Type: Grant
Filed: Apr 30, 1996
Date of Patent: Aug 4, 1998
Assignee: K.K.U. Limited (Tokyo)
Inventor: Eric Sung (Taichung County)
Primary Examiner: James Gandy
Assistant Examiner: Robert M. Spear
Law Firm: Greer, Burns & Crain, Ltd.
Application Number: 0/53,004
Classifications
Current U.S. Class: D 8/68
International Classification: 0805;