Tools – Wrench – screwdriver – or driver therefor – Handle or shank
Reexamination Certificate
1999-10-12
2001-03-13
Meislin, D. S. (Department: 3723)
Tools
Wrench, screwdriver, or driver therefor
Handle or shank
C081S180100, C081S125100
Reexamination Certificate
active
06199456
ABSTRACT:
TECHNICAL FIELD
This invention relates to a manually operable device for connection to tools or other objects to apply leverage thereto.
BACKGROUND OF THE INVENTION
Ratchet wrenches and other wrenches or tools occasionally prove inadequate to the task of threading or unthreading nuts, bolts and the like due to the fact that the user cannot apply the torque necessary to accomplish the job. This becomes a problem, for example, when the tool is in a confined or restricted area, making it difficult for an individual to apply the necessary degree of leverage.
It is known to insert straight pipes over the handles of ratchet wrenches and other wrenches or tools to increase the leverage applied to the tool and the nut or bolt to which it is applied. Such an approach is not suitable in all situations since the straight pipe can be utilized only when there is sufficient clearance to allow movement of the pipe, which of course is usually coaxial with the handle of the tool.
U.S. Pat. No. 5,570,617, issued Nov. 5, 1996, discloses an extendable extension handle for wrenches, ratchets, tire irons and such to permit the user to increase the leverage applied to the tool. The device is straight and extends coaxially with the handle of the wrench, ratchet or the like.
U.S. Pat. No. 4,733,583, issued Mar. 29, 1988, discloses a lug wrench for loosening and tightening lug nuts on a vehicle wheel which incorporate a moment arm bar and a multiplier bar pivotally connected together to change the mechanical advantage when loosening or tightening the lug nut.
U.S. Pat. No. 5,613,411, issued Mar. 25, 1997, discloses a tool for emergency use during changing a tire alongside a roadway which includes a socket and extension therefor. An inclined support member urges the socket into lug nut engagement during tool use when downward force is exerted on an arm on the extension. Projections on the support member penetrate the ground surface to prevent slippage of the member.
U.S. Pat. No. 5,254,519, issued Oct. 12, 1993, discloses a wrench kit for servicing threaded components such as nuts and bolts that are not easily accessible. The kit consists of a wrench member and a plurality of heads releasably engageable by the wrench member. The wrench member has a shaft elongated between proximal and distal extremities. An operational block, disposed at the distal extremity, is capable of securing a head in orthogonal relationship to the shaft. The proximal extremity is provided with a straight turning handle that penetrates the shaft in T-shaped relationship.
DISCLOSURE OF INVENTION
The present invention relates to a manually operable device for receiving tools or other objects having elongated, manually graspable portions and for applying leverage thereto. The device is characterized by its simplicity, relatively low cost, and versatility of use.
The device includes a double-ended elongated member having a primary axis.
A double-ended first receptacle is at one of the ends of the elongated member and defines a first pair of openings. The two openings of the first pair of openings are spaced from one another and disposed at the ends of the first receptacle. The openings lead to a recess defined by the first receptacle for receiving and holding tools or other objects with the elongated, manually graspable portions thereof disposed orthogonally relative to the primary axis of the elongated member.
The device also includes a double-ended second receptacle at the other of the ends of the elongated member defining a second pair of openings. The two openings of the second pair of openings are spaced from one another and are disposed at the ends of the second receptacle and lead to a recess defined by the second receptacle for receiving and holding tools or other objects with the elongated, manually graspable portions thereof being angularly disposed relative to the primary axis of the elongated member.
Such an arrangement allows a tool or other object to be approached from a plurality of angles depending upon the circumstances presented.
Other features, advantages, and objects of the present invention will become apparent with reference to the following description and accompanying drawings.
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patent: 5570617 (1996-11-01), Love
patent: 5613411 (1997-03-01), Rines
patent: 6058814 (2000-05-01), Johnson
Lampe Thomas R.
Meislin D. S.
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