Bioject Inc.

Slc Technologies

Victor L Bartholomew

Steven F Peterson

Charles N McKinnon, Jr

Takaaki Nakagawa

Paul E Smith

Mark S Taft

James P Casey, I

Scott A Ackley

John W Ashley

An overhead door position sensor assembly includes a sensor actuating device, and a position sensor including a roller track clamping device for mounting the position sensor onto a roller track of an overhead door assembly. The sensor actuating device is mountable to an overhead door of the overhead door assembly for actuating the position sensor when the sensor actuating device is located within a minimum actuation distance from the position sensor. The roller track clamping device includes a body having a main member for placement adjacent to a sidewall of the roller track and a curved resilient member extending from the main member for placement along the contour of a curved roller race that extends from the sidewall of the roller track. A bracket of the roller track clamping device is coupled to the body. A plurality of serrations located on one of the body and bracket engage with an edge of a slot located on the other of the body and the bracket to allow the body and the bracket to be coupled in a ratchet-like manner. The resilient member of the body includes a flexible thin section that conforms to the roller race and prevents the roller track clamping device from slipping along the roller track. When installed, no part of the position sensor assembly interferes with travel of the overhead door along the roller track.

Overhead door position sensor mounting device

A resilient and compressible door channel magnet module facilitates the installation of a door channel magnet. The module comprises a magnet set supported inside a magnet holder that is connected to a flexible and deformable outer ring by a set of elongate web members. To install, the module is compressed, positioned in the door channel, and released. The pressure of the module against the walls of the door channel retains the module in position. A preferred module includes a rare earth magnet backed with a ceramic magnet for producing the requisite magnetic field strength at less cost than a sole rare earth magnet of equal magnetic field strength.

Resilient and compressible magnet module for door channel installation

A needleless injection device includes an initiator valve controlling flow of compressed gas into a reservoir. A poppet valve connecting to the reservoir has a gas pressure regulation end to regulate flow from the initiator valve into the reservoir. A clamp piston is driven forward by gas pressure from the reservoir and causes jaws to clamp onto a plunger extending into an ampule. The poppet valve opens when reservoir pressure reaches the cracking pressure of the poppet valve. Gas from the reservoir rushes through the poppet valve into a drive chamber and forces a drive piston, containing the clamp piston and jaws, forward causing the plunger to slide into the ampule. A jet of injectant is discharged from the nozzle of the ampule and penetrates through the patient's skin. An improved method of needleless injection uses a specific pressure profile, ampule nozzle diameter, patient, injection site, and injectant parameters.

Needleless hypodermic injection methods and device

A needless injection device includes an initiator valve controlling flow of compressed gas into a reservoir. A poppet valve connecting to the reservoir has a gas pressure regulation end to regulate flow from the initiator valve into the reservoir. A clamp piston is driven forward by gas pressure from the reservoir and causes jaws to clamp onto a plunger extending into an ampule. The poppet valve opens when reservoir pressure reaches the cracking pressure of the poppet valve. Gas from the reservoir rushes through the popper valve into a drive chamber and forces a drive piston, containing the clamp piston and jaws, forward causing the plunger to slide into the ampule. A jet of injectant sprays out of the nozzle of the ampule and penetrates through the patient's skin.

Needleless hypodermic injection device

A method and mold for making an ampule for a needleless or jet injector device. The tip of a core pin is guided into a clearance hole sufficiently large to prevent the tip from hitting the mold cavity. Plastic is injected into the mold and flows into the space between the core pin tip and the clearance hole forming a vestigial nozzle pilot cylinder around and over the ampule nozzle. The ampule is removed from the mold and the vestigial nozzle pilot cylinder is removed to form a finished ampule. A core pin tip is made of drawn wire or is separately replaceable on the core pin. A nozzle of an ampule is cast in place. An ampule is molded with an enlarged nozzle and a separate orifice is installed in the ampule to provide the desired nozzle opening.

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Tigard, OR, United States of America

Victor L Bartholomew