Chucks or sockets – Accessory or component – Adapter
Reexamination Certificate
1999-10-06
2001-07-24
Bishop, Steven C. (Department: 3722)
Chucks or sockets
Accessory or component
Adapter
C030S500000, C074S049000, C173S029000, C279S144000, C408S022000
Reexamination Certificate
active
06264211
ABSTRACT:
RELATED APPLICATIONS AND DISCLOSURES
The present invention was first disclosed in the Disclosure Document filed on Nov. 18, 1999. There have been no previously filed, nor any co-pending applications, anywhere in the world.
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates generally to power hand tools, and, more particularly, to a universal, quick connect, reciprocating saw attachment for cordless drills.
2. Description of the Related Art
General construction and wood working projects require a wide variety of power tools to accomplish the job properly. Two power tools that have proven themselves worthy of inclusion in any toolbox are the power drill and the reciprocating saw.
The ability for the drill to produce a hole in just about any material and the reciprocating saw's ability to quickly cut in small, close quarters make them very valuable indeed. However, many individuals do not have the money to afford both tools. The expense for both tools duplicates components that are almost identical in both tools. This redundancy is immediately evident when one looks at both tools and notices that the back half of each is identical in configuration. Also, many individuals do not have the space to store both of the tools. Finally and perhaps the most important, the time spent keeping track of each tool on the job site and having it handy when work needs to be done is an inconvenience. Inevitably, the situation arises where the proper tool is not on hand, and, as a result, time and money are wasted in tracking it down. Accordingly, there is a constant need for new and innovative products that will afford construction workers, wood workers and the like the benefits of the aforementioned devices in a single convenient tool.
In the related art, several devices are disclosed that describe a drill/saw apparatus for converting rotary drill to a reciprocating saw. These include U.S. Pat. No. 5,755,293, issued in the name of Bourke, U.S. Pat. No. 5,595,250, issued in the name of Bourke, U.S. Pat. No. 5,566,768, issued in the name of Bourke, U.S. Pat. No. 4,949,463, issued in the name of Chen and U.S. Pat. No. 4,841,643, issued in the name of Colella et al.
Several patents disclose a hole saw for use in a hand drill. These include U.S. Pat. No. 5,096,341, issued in the name of Despres, U.S. Pat. No. 4,760,643, issued in the name of Juma, U.S. Pat. No. 4,741,651, issued in the name of Despres and U.S. Pat. No. 4,101,238, issued in the name of Reibetanz et al.
U.S. Pat. No. 5,316,415, issued in the name of Chiu, describes a power drill adapter with a saw blade transmission.
U.S. Pat. No. 5,083,376, issued in the name of Lentino, discloses a bevel gear set to convert rotary drill to a reciprocating saw.
U.S. Pat. No. 4,972,589, issued in the name of Povleski, describes various cutting and sanding attachments for a rotary drill.
U.S. Pat. No. 257,309, issued in the name of Ford, discloses an apparatus with provisions for drilling or boring, circular sawing, or scroll sawing.
A search of the prior art did not disclose any patents that anticipate directly many features of the instant invention. Consequently, a need has been felt for providing an apparatus and method which overcomes the problems cited above.
SUMMARY OF THE INVENTION
It is therefore an object of the present invention to provide an improved universal, quick connect, reciprocating saw attachment for all electric drills that allows a power rotary drill to be used as a reciprocating saw.
Briefly described according to one embodiment of the present invention, a universal, quick connect, reciprocating saw attachment for cordless drills is disclosed, designed as an adapter that converts a power rotary drill into a reciprocating saw. The present invention converts the rotary action of a drill into the necessary reciprocating action to power a saw blade. The present invention adapts to the housing of various cordless drills and provides for a connection of a steel shank to the drill chuck. A gear box with a reciprocating mechanism inside the housing then provides a coupling to a saw blade to provide necessary cutting action of a conventional reciprocating saw. Additionally, there are buttons that are designed to expand in and out to tighten the chuck which holds the adapter. The housing is made of a heavy duty impact resistant plastic with the associated gears and reciprocating mechanism made from hardened steel. Coupled with a cordless drill, and a saw blade, the present invention provides for the functions of two, usually separate, power tools in the convenience of one.
It is another object of the present invention to provide a device that permits a drill to be used as a reciprocating saw, thereby saving time, money and space.
It is another object of the present invention to provide a device that is universal in design, being capable of attachment to all models of drills.
It is another object of the present invention to provide a device that is quick to connect and disconnect.
It is another object of the present invention to provide a device that is durable, long lasting, and requires little or no maintenance.
REFERENCES:
patent: Re. 36558 (2000-02-01), Moore et al.
patent: 257309 (1882-05-01), Ford
patent: 2621685 (1952-12-01), Butz
patent: 2822005 (1958-02-01), Lee et al.
patent: 3759336 (1973-09-01), Marcovitz et al.
patent: 3876015 (1975-04-01), Kivela
patent: 4101238 (1978-07-01), Reibetanz et al.
patent: 4741651 (1988-05-01), Despres
patent: 4760643 (1988-08-01), Juma
patent: 4841643 (1989-06-01), Colella et al.
patent: 4949463 (1990-08-01), Chen
patent: 4972589 (1990-11-01), Povleski
patent: 5083376 (1992-01-01), Lentino
patent: 5096341 (1992-03-01), Despres
patent: 5316415 (1994-05-01), Chiu
patent: 5566768 (1996-10-01), Bourke
patent: 5595250 (1997-01-01), Bourke
patent: 5607265 (1997-03-01), Lane
patent: 5755293 (1998-05-01), Bourke
Bishop Steven C.
Gugliotta John
LandOfFree
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