| Patent Number |
Title Of Patent |
Date Issued |
| D247619 |
Rechargeable battery pack |
March 28, 1978 |
|
| 4191917 |
Battery pack rechargeable in recessed or flush-type receptacles |
March 4, 1980 |
| A relatively flat, rectangular, box-shaped, rechargeable, battery pack has a multi-positionable plug with prongs. The plug can be appropriately positioned for recharging the pack by insertion of the plug into either a European-type, deeply recessed receptacle, in a shallow recessed r |
| 4158246 |
Portable cordless scrubber |
June 19, 1979 |
| A hand-held, portable, cordless scrubber is disclosed which incorporates counter-rotating, scrubbing brushes detachably mounted on counter-rotating, concentric shafts. The scrubber housing is designed to prevent the entry of moisture and provides a pocket with a detachable cover for |
| 4122320 |
Hand-operated double-acting trigger switch |
October 24, 1978 |
| A hand-operated, double-action trigger switch is mounted in the handle area of a portable electric tool and comprises a thumb-actuated safety button protruding from the upper portion of the handle and a finger depressable trigger on the lower portion of the handle. The safety button must |
| 4089114 |
Cutting device |
May 16, 1978 |
| A cordless electric lawn edger utilizes a flexible strand of nylon monofilament rotated at high speed to effect cutting of grass and weeds. The rotating assembly mounting the strand is substantially conical in order to reduce drag and prevent grass from wrapping around the assembly. |
| 4084123 |
Cordless electric devices having rechargeable battery pack(s) |
April 11, 1978 |
| A family of cordless electric tools and devices is adapted to use one or more identical rechargeable battery packs and each pack is adapted to interchangeably fit into a pocket or any one of a plurality of pockets in the tool or device in which the pack is employed. The battery pack is |
| 4064447 |
Cordless portable electrically powered device |
December 20, 1977 |
| A cordless electric device has an external side pocket for receiving a battery pack power source. The battery pack includes a pair of standard AC prongs projecting from one flat sidewall. The prongs may be received by a set of openings in the device pocket for powering the tool or may be |
| 3973378 |
Cordless grass trimmer having removable battery pack |
August 10, 1976 |
| An upright cordless grass trimmer incorporated incoporates fixed multi-toothed bottom blade and plural sets of top blades which oscillate over the bottom blade to achieve cutting. The sets of top blades are driven by a motor through a gear and cam mechanism and are synchronized so th |
| 3939362 |
Power pack with switch for plural primary-secondary connections |
February 17, 1976 |
| A power pack unit includes a casing and cover and a transformer subassembly having a molded bobbin of insulating material which receives primary and secondary lugs, a selected primary and a secondary winding configuration, laminations, A.C. terminals, connecting wiring, and a bobbin-moun |
| 3934340 |
Cutting blade edge construction for mechanically actuated shears |
January 27, 1976 |
| Pairs of planar cutting blades with angularly related cutting edges such as are used in grass shears, and the like, and which are mechanically actuated to move relative to each other and to cut by a scissors-like action are formed in a manner such that during each cutting action the |
