Mechanical hand tool called the swing arm

Details Mechanical hand tool called the swing arm Mechanical hand tool called the swing arm

2001-09-24

2003-03-25

Hail, III, Joseph J. (Department: 3723)

Tools

Wrench, screwdriver, or driver therefor

Having stationary structure for supporting wrench or...

C081S057000

Reexamination Certificate

active

06536311

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to a hand tool with multiplying force to loosen or tighten wheel nuts on a vehicle.
2. Related Art
A hand tool used in loosening the wheel nuts that a frozen by rust or tightly secured has been exemplified by several patents. Most use gears as like U.S. Pat. No. 3,992,964 in which Osmond discloses a hand tool with coordinated gear assembly and a bracing rod or U.S. Pat. No. 5,179,879 where Mantilla discloses a hand tool with a multiple step down gears making it compact. Or as a variation from gearing there is U.S. Pat. No. 5,129,290 in which Haun uses a hydraulic driven mechanism. These and others are listed for your review.
U.S. Pat. No. 5,616,095 U.S. Pat. No. 5,179,876 U.S. Pat. No. 5,176,047 U.S. Pat. No. 5,129,290 U.S. Pat. No. 5,125,297 U.S. Pat. No. 5,123,308 U.S. Pat. No. 5,075,914 U.S. Pat. No. 5,074,170 U.S. Pat. No. 4,063,475 U.S. Pat. No. 3,992,964 U.S. Pat. No. 3,905,254 U.S. Pat. No. 636,706 U.S. Pat. No. 535,006 U.S. Pat. No. 304,075 U.S. Pat. No. 200,950
BRIEF SUMMARY OF THE INVENTION
It is therefore the object of the present invention to provide a wheel nut loosening and/or tightening system with simple engineering that provides the user with ease, speed and stability. This and other objects will be become apparent from further reading of the detailed descriptions with reference drawings and appended claims.


REFERENCES:
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patent: 5129290 (1992-07-01), Haviv
patent: 5176047 (1993-01-01), Bai
patent: 5179876 (1993-01-01), Mantilla
patent: 5309796 (1994-05-01), Jones
patent: 5616095 (1997-04-01), Pruitt
patent: 5768957 (1998-06-01), Baker
patent: 200950 (1920-06-01), None
patent: 304075 (1930-09-01), None
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patent: 636706 (1962-02-01), None

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