Abstract: An injection device and method of forming an injection device. The injection device includes a unitary molded body including a cylindrical wall partially defining a syringe chamber a nose offset from the cylindrical wall to define the forward end of a needle housing positioned on one side of the cylindrical wall. The adjoining portions of the nose and the cylindrical wall having a passage formed therethrough for the flow of fluid from the chamber to the nose. The passage is concealed behind the skirt of the nose. A plunger is slidably disposed in the chamber. A sheath is spaced from the nose and cylindrical wall to define a needle housing. A needle carriage is slidably disposed in the needle housing, and is movable to a forward position with the needle extending through the aperture in the front end of the nose.

Abstract: A hypodermic syringe and method of filling the syringe with an injection fluid. The syringe includes a fluid chamber for retaining an injection fluid and a plunger assembly for expelling fluid from the chamber. The plunger assembly includes a plunger slidably disposed in the fluid chamber for creating positive pressures to cause ejection of a fluid from the chamber and an actuator coupled to the plunger for movement of the actuator between a first position with the actuator released for movement of the actuator through the fluid chamber relative to the plunger and a second position with the actuator in cooperative engagement with the plunger for driving the plunger to create the positive pressures.

Abstract: A seat cushion system that reduces the vertical impact to the seat occupant within the space and cost constraints of existing seat support structures. In one embodiment, the seat cushion employs a series of layers of varying density and lateral displacement foams with a rigid or semi-rigid material within the cushion. Each layer of foam can change in both density and lateral displacement depending on the volumetric space available. Another embodiment demonstrates how only two layers of differing densities and lateral displacement can greatly reduce the impact force from vertical thrust.

Abstract: A hypodermic needle assembly for use with an injection device. The needle assembly includes a sheath having a front end and a recess extending inwardly from the front end of the sheath, and a needle carriage positioned in the sheath. A needle is mounted to the carriage. The needle carriage is movable along the recess between a forward position with the needle projecting from the front end of the sheath and a retracted position with the needle positioned inside of the sheath. The sheath has a plurality of first locking members and the needle carriage has at least one second locking member cooperable with the first locking members for selectively retaining the needle carriage in each of the forward position and the retracted position when the second locking member and one of the first locking members are engaged and for moving the needle carriage relative to the sheath when the second locking member and the first locking members are disengaged.

Abstract: A hypodermic syringe and method of filling the syringe with an injection fluid. The syringe includes a fluid chamber for retaining an injection fluid and a plunger assembly for expelling fluid from the chamber. The plunger assembly includes a plunger slidably disposed in the fluid chamber for creating positive pressures to cause ejection of a fluid from the chamber and an actuator coupled to the plunger for movement of the actuator between a first position with the actuator released for movement of the actuator through the fluid chamber relative to the plunger and a second position with the actuator in cooperative engagement with the plunger for driving the plunger to create the positive pressures.

Abstract: A seat cushion system that reduces the vertical impact to the seat occupant within the space and cost constraints of existing seat support structures. In one embodiment, the seat cushion employs a series of layers of varying density and lateral displacement foams with a rigid or semi-rigid material within the cushion. Each layer of foam can change in both density and lateral displacement depending on the volumetric space available. Another embodiment demonstrates how only two layers of differing densities and lateral displacement can greatly reduce the impact force from vertical thrust.

Abstract: A double containment device for liquid hazardous material wherein a first liquid hazardous material container may be placed on a shelf having a second liquid hazardous material container, which meets statutory volume requirements, thereunder. The second container being located directly underneath the first container and collecting, through a support plate, any liquid hazardous material from the first container. Also disclosed is a tray in which a first container would rest. Spills from this first container seep on to the tray and are channelled through a drainage path to a second container, again fulfilling statutory volume requirements; the tray, drainage path and second container clipping on to the existing shelf.

Abstract: A test tube support system simultaneously holds a plurality of test tubes of different sizes. In one embodiment, the test tube support system includes a plurality of rectangular box-shaped units, each having four faces. The faces are injection molded plastic plates, each having a depth of between 0.25 and 0.50 inches with a plurality of tapered holes therethrough. More generally, the plates have sufficient depth to prevent tipping of test-tubes stored vertically therein. Also, the holes in each plate are of differing diameter than the other plates of the unit. A support or carrier tray holds a plurality of these units. Each unit may be differently oriented so that test tubes of various sizes may be stored in the test tube support system. In another embodiment, the test tube support system has a multiplicity of rectangular, plastic, injection molded plates, similar to the plates in the rectangular box-shaped units.

Abstract: A test tube support system wherein support holes of varying sizes are available for simultaneous upright storage of various different sizes of test tubes.