Skil Corporation

James R Hartmann

Louis J Vassos

P Sean Gallagher

Dale M Flowers

Jennifer F Uzumcu

John W Heinz

A unitary rechargeable battery pack includes a plurality of axially aligned battery cells coupled to each other in electrical series with an insulated housing surrounding and enclosing the cells. The housing includes complementary halves detachably connected to each other. First, second and third electrical terminals provide two positive voltages and a common or negative voltage terminal, respectively. First and second and third openings in one end of the battery pack expose the first, second and third terminals for electrical connection. The openings are accessible for connection in a 90.degree. quadrant at one end of the battery pack.

Battery pack

An improved cordless motor-driven electric hand tool that has an elongated body portion with a tool bit-receiving chamber at one end and a housing at the other end having a battery-receiving chamber therein. An elongated tool bit storage chamber is formed in the housing above and/or below the battery-receiving chamber and has a cover that is pivotally mounted for open and closed positions. The housing is oval shaped to create a space above and/or below the battery-receiving chamber in which the tool bit storage chamber is formed.

Cordless tool bit storage

A reciprocating jigsaw tool having a plurality of selectible fixed linear plunger and blade motions as well as fully adjustable orbital and manual or auto scrolling saw blade control. A single mode selector is provided to select between the above operational modes. The mode selector includes a cam to selectively limit the oscillatory motion of a pivotally mounted plunger upper swivel bearing carriage assembly thereby directly limiting the degree of orbital plunger motion. The mode selector further includes a gear segment in operative engagement with a rack member which, in turn, engages an integral scrolling interface member of the top-mounted scrolling adjustment knob. The scrolling interface member incorporates an annular ring having a gap therein adapted to inhibit upward travel of the rack which, in turn, inhibits orbital saw operation when the plunger and blade is positioned other than in the cut forwardly position. The scrolling interface further includes locking ridges adapted to engage the rack and to preclude rotation of the scrolling adjustment knob when either the orbital or fixed linear mode is selected.

Combination jig saw adjusting mechanism

A cordless electric drill has a housing formed by two clam-shell sections secured together by a plurality of fasteners. These housing sections define a closed motor and gear compartment which receives a sub-assembly, the latter including a generally U-shaped gear box frame mounting a small D.C. electric motor, a plurality of reduction gears and a spindle. A drill chuck is mounted on the spindle. The sub-assembly and the housing sections include co-operating mounting formations, defined in part by projections and cavities, which mounting formations serve to mount the sub-assembly in place in response to securing the clam-shell housing sections together by the aforesaid fasteners.

Growing community of inventors

Chicago, IL, United States of America

James R Hartmann