Compound tools – Plier type – With tool or plier handle
Utility Patent
1998-11-19
2001-01-02
Scherbel, David A. (Department: 3723)
Compound tools
Plier type
With tool or plier handle
C081S416000, C081S412000
Utility Patent
active
06167581
ABSTRACT:
This invention relates to a combination tool based on a pliers and more particularly to pliers-based, combination tool, which can be easily locked in a position to use one of the other tools in the combination tool.
BACKGROUND OF THE INVENTION
Pliers generally have two arm elements pivotally connected at a slip joint. Each arm element has a handle at one end and a jaw at the other end. The slip joint serves to expand or contract the size of the jaw opening and the resultant gripping capability of the pliers as required. Two types of pliers are typical, being commonly referred to as crescent pliers or slip joint pliers.
It is highly desirable to provide combination tools. However, use of combination tools can result in a complicated set up, which destroys the efficiency of the tool involved. Also, it is highly desirable for a compound tool to be easily used with other components and easily transferred from the use of one element of the compound tool to another element, while at the same retaining the effectiveness of the individual tool.
Furthermore, there is great difficulty in having the elements locked into position for efficient use of each element of the compound tool. If the locking cannot be accomplished efficiently, the tool lacks the required effectiveness.
The locking device of the prior art are cumbersome. There is often difficulty in operating the locking device while in the act of using the pliers as a screwdriver or other tool. Both U.S. Pat. Nos. 4,920,593; and 5,119,520, by the same inventor, address these issues and are incorporated herein by reference. For that reason, further discussion of prior art locking mechanisms is not required.
If these factors can be accomplished efficiently, the advantages of having a compound tool are equivalent to providing each tool individually while retaining the advantages of having more than one tool available immediately.
If the pliers can be locked in a variety positions, the adaptability of the pliers becomes greater. This requires an adaptable pliers locking mechanism. Such an adaptability for the pliers locking mechanism is difficult to obtain.
While it is sometimes necessary to use the standard pliers as wire cutters, it is difficult to do so. There is no feature on existing pliers to greatly enhance the wire cutting capabilities of the pliers. If such an enhancement can be efficiently added, without complicating the manufacture of the pliers, great advantages can be obtained.
Also desirable is to have a multi-faceted pair of pliers. If the pliers tool can conserve the pliers function, while, at the same time, being modifiable in a simple fashion for other types of tools, greater advantages are obtained for the field of combination hand tools.
SUMMARY OF THE INVENTION
Therefore, among the many objectives of this invention is to provide a pliers combination tool, which is easily adapted to support the use of an additional tool, with the addition of a wire cutting capability.
A further objective of this invention is to provide a pliers combination tool, which is adapted to a side lock position.
A still further objective of this invention is to provide a pliers-based, combination tool adaptable to lock with one hand for using another tool.
Yet a further objective of this invention is to provide a pliers-based, combination tool adaptable with a phillips screw driver tip.
Also an objective of this invention is to provide a pliers-based, combination tool adaptable with a flat or blade screw driver tip.
Another objective of this invention is to provide a pliers-based, combination tool adaptable with a star screw driver tip.
Yet another objective of this invention is to provide a pliers-based, combination tool adaptable with an allen wrench tip.
Still another objective of this invention is to provide a pliers-based, combination tool adaptable with a scribe tip.
A further objective of this invention is to provide a pliers-based, combination tool adaptable with a square tip.
A still further objective of this invention is to provide a pliers-based, combination tool adaptable with a socket drive tip.
These and other objectives of the invention (which other objectives become clear by consideration of the specification, claims and drawings as a whole) are met by providing a pliers-based, combination tool; wherein the pliers have an elongated slot for the purpose of locking the shanks apart in order to permit the other tools to be used or an enhanced wire cutting slot.
REFERENCES:
patent: 753048 (1904-02-01), Des Moineaux
patent: 928849 (1909-07-01), Carlson
patent: 2787925 (1957-04-01), Buchanan et al.
patent: 2925652 (1960-02-01), Lundquist
patent: 3860981 (1975-01-01), Mayer
patent: 4987626 (1991-01-01), Montgomery et al.
Danganan Joni B.
Perrone, Jr. Mathew R. P.
Scherbel David A.
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