Phd, Inc.

Solstice Medical, LLC

Clyde W Sprowl

Matthew R Williams

Michael D Westrick

Daniel L Sands

Cale M Reese

Matthew R LaFontaine

An RFID tag includes a circuit board assembly having a substrate comprised of a material with a high dielectric constant of greater than approximately 4 and having a first side and a second side. A patch antenna is mounted to the first side of the substrate. A metallic ground plane is mounted to the second side of the substrate, and an RFID circuit is at the second side of the substrate. A shorting wall includes a plurality of through holes extending through the substrate and interconnecting the antenna with the ground plane. The plurality of through holes are generally linearly arranged relative to each other along an edge of the ground plane. An electrically conductive via extends through the substrate and interconnects the antenna with the RFID circuit. The via is at a distance from the shorting wall whereby an impedance of the RFID circuit approximately matches an impedance of the antenna. A backplane is coupled with the ground plane, on a side of the ground plane opposite the substrate.

Side loaded shorted patch RFID tag

An RFID tag includes a circuit board assembly having a circuit board, an RFID circuit, an antenna, and a metallic ground plane. The circuit board has a first side and a second side. The circuit board carries the antenna on the first side and the ground plane on the second side. The RFID circuit is coupled with each of the antenna and the ground plane. A backplane is coupled with the ground plane, on a side of the ground plane opposite the circuit board. An overmolded housing surrounds and hermetically seals the circuit board assembly. The housing is comprised of a material which is both autoclavable and has a low dielectric constant of between approximately 1 to 5.

Reusable, hermetic, medical grade RFID tag

A rodless slide assembly is provided illustratively having a longitudinally-extending cylinder, a carriage, a stop assembly, and a catch assembly. The longitudinally-extending cylinder comprises first and second ends and a path of travel extending therebetween. The carriage is slidable on the path of travel on the cylinder between the first and second ends. The stop assembly comprises a stop block and is coupled to the carriage. In one embodiment the catch assembly includes a catch bar and an actuator assembly. The catch bar is located adjacent the path of travel of the carriage. The actuator assembly selectively moves the catch bar to engage the stop block and stop the carriage when the carriage is positioned at a selected location on the path of travel.

Stop for a slide assembly

A rodless slide assembly is provided illustratively having a longitudinally-extending cylinder, a carriage, a stop assembly, and a catch assembly. The longitudinally-extending cylinder includes first and second ends and a path of travel extending therebetween. The carriage is slidable on the path of travel on the cylinder between the first and second ends. The stop assembly includes a stop block and a stabilizer. The stop assembly is coupled to the carriage and the stabilizer is located between the stop block and the carriage. The catch assembly comprises a catch bar and an actuator assembly. The catch bar is located adjacent the path of travel of the carriage.

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Huntington, IN, United States of America

Clyde W Sprowl