S-B Power Tool Company

Wolfgang Hirschburger

Allen M Oles

Edward T Prell

Edward G Ennis

Brad M Baber

Ed Ennis

A tool guard attachment for a rotary hand tool of the type which has a housing with a nose portion from which an output shaft protrudes and which typically has a mechanism for holding tool bits or implements is disclosed. The tool guard attachment, which mounts to the nose portion of the rotary hand tool, has a guard housing with an enlarged guard portion at the outer end thereof which provides a shield or guard for a flat circular tool implement that is mounted on an arbor shaft assembly that in turn is connected by a U-joint to a drive shaft assembly at an acute angle relative to the arbor shaft assembly. The drive shaft assembly engages a driver nut or the like that is mounted to the output shaft of the rotary hand tool. The angle between the drive shaft and the arbor shaft is offset about 10 to 30&deg; so that the rotary hand tool itself does not interfere with the cutting blade engaging a work surface at a perpendicular angle during operation. A lower guard that is retractable in the enlarged guard portion of the housing is normally biased away from the enlarged guard portion for protecting a user from injury.

Tool guard attachment for a rotary hand tool

A rotary power tool having a light source includes a housing, an electric motor provided in the housing and an elongated spindle engaged with and adapted to be rotatably driven by the motor. A rotatable holding assembly is attached to an end of the spindle and extends from a front end of the housing for holding a tool accessory. At least one magnet is adapted to be rotated by the spindle for producing a magnetic field, and a generally tubular sleeve is attached to the front end of the housing. At least one light emitting diode projects from a front end of the sleeve, generally between the inner and the outer surfaces of the sleeve. An inductive coil is also imbedded at least partially in the sleeve generally between the inner and the outer surfaces, proximate the magnet for generating an electric current from the magnetic field. Electrical conductors are also embedded and routed through the sleeve for supplying the electric current from the inductive coil to the light emitting diode.

Electric-motor rotary power tool having a light source with a self-generating power supply

A right angle attachment configured to be attached to a small electrically powered rotary hand tool of the type that is used in woodworking, hobby work and other work. Being small, lightweight, relatively vibration free and quiet in operation, the attachment is easily attached to a hand tool in a very short amount of time without the use of any special tools. The attachment has a flexible input shaft and an output shaft that are oriented at an angular orientation, such as approximately 90 degrees relative to one another so that the flexible shaft compensates for misalignment between the input shaft and the output shaft of the tool. In operation, the attachment is easily attached to the hand tool by merely removing the chuck that is a part of the original hand tool and attaching the chuck to the attachment output shaft, threadably engaging a driver nut on the rotary tool output shaft, engaging a mounting coupling assembly onto a threaded end of the rotary tool case, and fitting the attachment to the hand tool by merely sliding it into engagement and tightening the coupling assembly by hand.

Right angle attachment for power hand tool

A switch mechanism for an electrical slide switch that has a detenting or clicking action is disclosed. The switch mechanism provides such detenting action in a mechanism that has a switch lever that moves through an arcuate path of movement and provides a uniform resistance to movement through the entire range of movement of the switch lever.

Growing community of inventors

Wilmette, IL, United States of America

Wolfgang Hirschburger