1
David A Saar, Richard T Walter: Method of charging batteries and apparatus therefor. Black & Decker, R B Sherer, Harold Weinstein, E D Murphy, July 5, 1983: US04392101 (256 worldwide citation)

A method of fast charging batteries by means of precise analysis of the profile of the variation with time of a characteristic of the battery which is indicative of the variation in stored chemical energy as the battery is charged. The method specifically comprises analyzing the profile for the occu ...


2
Richard E Walton II: Tool collet and control means. Black & Decker, R B Sherer, Harold Weinstein, Charles E Yocum, April 10, 1984: US04441563 (73 worldwide citation)

A power tool, such as a surgical drill, has a tool element retained in a collet coupled to the output spindle of the tool. Resilient member constantly maintains the collet in its closed position. Upon rotation of the spindle in a reverse direction, opposite to its normal driving direction, a cam is ...


3
Irvin H Reeb Jr, Robert L Beckhardt: Cordless electric device having contact increasing means. Black & Decker, R B Sherer, Harold Weinstein, Charles E Yocum, May 8, 1984: US04447749 (48 worldwide citation)

A cordless electric tool in which a motor is mounted in a housing and to which housing a battery source is connected to operate the motor. The battery source is in the form of a battery pack that will be slide-fitted into the housing to be detachably connected thereto. The tool housing has a hollow ...


4
Ammon N Heininger Jr, Edward A Barnik: Modular housing system for a circular saw. Black & Decker, R B Sherer, Edward D Murphy, Harold Weinstein, May 14, 1985: US04516324 (44 worldwide citation)

A portable circular saw includes a single, one-piece thermoplastic housing having an interface portion which interchangeably mounts either a pivot adjust or vertical adjust subassembly, whereby two types of saws may be constructed using the same field case. One type adjusts saw blade depth of cut by ...


5
David A Saar, Pradeep Bhagwat: Waveform synthesizer and motor controller. Black & Decker, R B Sherer, H Weinstein, Charles E Yocum, May 8, 1984: US04447786 (33 worldwide citation)

A waveform synthesizer for generating single or poly-phase waveforms of selected wave shape and frequency for driving AC machinery including, for example, single or poly-phase induction, synchronous or other type motors or the like, includes a plurality of controllable power-switching device pairs f ...


6
Danny R Jinkins, William R Lessig III, Timothy J Canatella: Vacuum cleaner tool for use on horizontal and vertical surfaces. Black & Decker, R B Sherer, Harold Weinstein, C E Yocum, August 9, 1983: US04397060 (30 worldwide citation)

A vacuum cleaner tool is removably mounted on the elongated wand of a conventional vacuum cleaner. The tool includes a head or main housing having a forwardly-disposed brush enclosure portion with a lower planar opening formed therein. A brush is rotatably journaled in the brush enclosure portion of ...


7
Robert G Moores Jr: Hammer-drill for masonry fasteners. Black & Decker, R B Sherer, H Weinstein, Charles E Yocum, September 4, 1984: US04468826 (24 worldwide citation)

A hammer-drill is adapted for drilling a hole in masonry and subsequently driving a threaded masonry fastener therein. The hammer-drill has a driving output shaft nested concentrically within a driving output sleeve. The shaft and sleeve both extend forwardly of the tool housing, and both are driven ...


8
Keith A Pelfrey: Magnetic base machine tool. Black & Decker, R B Sherer, H Weinstein, J B Hoofnagle, May 27, 1986: US04591301 (22 worldwide citation)

A magnetic base drilling machine includes a base having a magnet coil therein and a motor assembly mounted on the base for driving a rotary cutting tool. Electrical circuitry, including switches for applying power to the magnet coil, for reversing the direction of current to the magnet coil, and for ...


9
William D Sauerwein, Daniel H Sides, Steven A Weber, James R Horney: Composite washer assembly. Black & Decker, R B Sherer, H Weinstein, Charles E Yocum, May 22, 1984: US04449329 (13 worldwide citation)

An annular composite washer assembly provides a "soft" mount for a tool element subassembly mounted on the threaded output spindle of a portable grinder or other power tool. The composite washer includes a pair of flat annular washers and a molded body therebetween. The body has integrally-molded in ...


10
Ernest R Dynie, Colin Overy: Power lawn rake. Black & Decker, Charles E Yocum, Harold Weinstein, R B Sherer, May 8, 1984: US04446681 (12 worldwide citation)

An improved power lawn rake has a rotor provided with a plurality of ground-engaging spring tines. The dead leaves and other debris are carried by the rotor along the curved forward wall of a deflector box, and are discharged between the deflector box and a front channel and into a molded bin. The b ...