Fiedor

Craig I. Fiedor, Lower Burrell, PA US

Patent application number	Description	Published
20100050523	Safety release mechanism for use with a linear motor turning a ball screw - A safety release mechanism for use with a ball screw type linear motor, featuring a lock lever that can be manually engaged or disengaged. Engaging the lock lever rigidly fixes a telescoping arm, allowing the motor to retract or extend the arm into a cover tube. Disengaging the lock lever allows the telescoping arm to rotate freely in the cover tube. One embodiment of the safety release mechanism is used with a motorized door assist mechanism, however, the release mechanism has many applications beyond a door opener, and can be used in any application requiring a linear motor with a telescoping arm, where in order for the motor to extend or retract the arm, one end of the arm must be fixedly held in place.	03-04-2010

Patent application number	Description	Published
20110074448	POTENTIOMETER - Fill level sensors designed as potentiometers are known, having two resistor strips on an electrically insulating carrier, on each of which a plurality of conductor segments are disposed at a distance from each other and act together with a pickup shoe that can move relative to the carrier, wherein the conductor segments of the one resistor strip are disposed offset from the resistors of the other resistor strip in the direction of motion of the pickup shoe. The pickup shoe electrically connects one conductor segment of the one resistor strip to a conductor segment of the other resistor strip. In order to contact the two conductor segments to be bridged, the pickup shoe has two contacts. When, however, one contact of the pickup shoe contacts a conductor segment of the one resistor strip, the other contact is in the intermediate space between the conductor segments of the other resistor strip, due to the offset arrangement of the conductor segments, so that, under some circumstances, no electrical connection is made between the conductor segments to be bridged, and no output signal is present. The conductor segments of the two resistor strips and the contacts of the pickup shoe are made of expensive metal alloys comprising noble metal. For the potentiometer according to the invention, the production costs are reduced. According to the invention, the conductor segments (	03-31-2011

Patent application number	Description	Published
20110074448	POTENTIOMETER - Fill level sensors designed as potentiometers are known, having two resistor strips on an electrically insulating carrier, on each of which a plurality of conductor segments are disposed at a distance from each other and act together with a pickup shoe that can move relative to the carrier, wherein the conductor segments of the one resistor strip are disposed offset from the resistors of the other resistor strip in the direction of motion of the pickup shoe. The pickup shoe electrically connects one conductor segment of the one resistor strip to a conductor segment of the other resistor strip. In order to contact the two conductor segments to be bridged, the pickup shoe has two contacts. When, however, one contact of the pickup shoe contacts a conductor segment of the one resistor strip, the other contact is in the intermediate space between the conductor segments of the other resistor strip, due to the offset arrangement of the conductor segments, so that, under some circumstances, no electrical connection is made between the conductor segments to be bridged, and no output signal is present. The conductor segments of the two resistor strips and the contacts of the pickup shoe are made of expensive metal alloys comprising noble metal. For the potentiometer according to the invention, the production costs are reduced. According to the invention, the conductor segments (	03-31-2011