Abstract: Radial block copolymers of the butadiene-styrene type are utilized in an uncured state to form a solid golf ball center which has high rebound characteristics as well as various durometers. The golf ball centers containing the radial block copolymers can be formulated to obtain the specific properties desired by a particular manufacturer and can be manufactured at a lower cost than those presently available.

Abstract: A flow control device for regulating the flow of fluid through a flexible tubing wherein a roller is employed with a grooved surface for incrementally controlling the flow of fluid through the tubing. In order to properly orientate the groove of the roller during its path of travel through the clamp body and over the tubing, a flat segment or interrupted surface portion is provided on the roller and an interfering member is provided in the base of the clamp. In addition, and to improve the efficiency of the clamp, additional features such as a relief surface in the roller, centering lugs for the tubing to position it in the clamp body, as well as circumferential ribs on the roller are provided.

Abstract: A high volume filter for use in an I.V. or blood administration set. A double filter unit is formed by folding a length of filter material into two portions to form pocket members with tubular inlets placed in each. These components are then sealed into a length of plastic tubing with an additional tubular member to form a filter unit. In a preferred embodiment, the filter unit is formed integrally with a drip chamber.

Abstract: A needle-inside, catheter placement assembly including needle and catheter units. The needle unit comprises a needle joined by a flexible line to a needle hub. The catheter unit comprises a catheter, winged catheter insertion means, flexible tubing and tube hub, wherein an area of reduced thickness on each wing of the insertion means provides improved flexibility for the wing. The needle is captured within the winged catheter insertion means when the wings are simultaneously held in a vertical position and axial and rotational alignment of the needle and catheter units are maintained by mechanically interlocked complementary means associated with the needle and lumen of the winged catheter insertion means.

Abstract: A rotatable connecting device which provides for quick and positive interfitment between a venipuncture unit and an intravenous administration set without rotation or twisting of the venipuncture unit or intravenous tubing. A rotatable collar is provided on one of the members constituting the connecting device and is captively held thereon while permitting longitudinal movement. Frictional engaging means are disposed on the body member retaining the collar as well as the collar to provide an interference fitment. Internal threads are defined in the rotatable collar for engagement with a flange member disposed on the catheter hub. A luer lock fitment is afforded between the catheter member and the member carrying the rotatable collar.

Abstract: A disposable intravenous pump chamber cassette for an intravenous administration set which provides a fast yet fluid tight connection for a diaphragm portion to the pump chamber housing. The pump chamber is specifically constructed to be utilized in conjunction with a peristaltic-type pump having three contact members wherein the outer contact members serve as valves and the central contact member as a pumping member.

Abstract: A tamper resistant cover for the port of a container for medical liquids which when applied to the port indicates that an additive material has been introduced into the container. The port cover is easily molded from a resinous plastic material and includes latch portions which fit into a latch bar with the latch bar serving as a means to prevent access with the latch portions so as to result in a tamper-resistant structure. Preferably, the latch portions are in the form of barbed sections and are guided by means of an inclined ramp into latch openings in such a manner that a compression fit is provided so that after the barbed sections are forced through the latch openings the barbed sections will expand to engage latch surfaces in the latching bar.

Abstract: A gas burner element for a barbecue grill which can be utilized in a wide variety of barbecue grill base portions. The burner element has leg members which extend from the element in the direction of the base floor so that the burner element is supported solidly above the floor and the gas intake member is in communication with the gas supply pipe irrespective of the placement of the foot pads on the floor. In a preferred manner, the leg members are pivotally and extendably attached to the burner element.

Abstract: A flow control device for flexible tubing wherein the device utilizes a toggle action in compressing the tubing against an anvil surface. A ratchet element is employed in conjunction with the toggle-action clamp to incrementally compress the tubing against the anvil surface. The clamp can be inexpensively molded in one piece and easily assembled without the placement of additional parts in the clamp body. The ratchet and toggle mechanisms offer the advantage of a one-hand operation for incremental compression of the tubing as well as a release of the clamp member.

Abstract: Radial block copolymers of the butadiene-styrene type are utilized in an uncured state to form a core wall for a liquid golf ball center which permits rapid production with better size and weight control than is currently available. The golf ball core wall containing the radial block copolymers can be formulated to obtain the specific properties desired by a particular manufacturer and can be manufactured at a lower cost than those presently available.

Abstract: A collapsible container for medical fluids which is blow molded in such a manner that when the container is supported at one end, the side wall portions will automatically become self-pleating and will continue to assume a pleating condition toward the bottom of the container as the medical fluid is emptied therefrom. This self-pleating aspect is accomplished by blow molding the container in such a manner that the shoulder and side wall portions are of an average smaller dimension throughout the longitudinal axis of the body section and the shoulder portions join the side wall portions at an angle so as to effect a structurally weak point when the bag is supported by a hanger tab. This self-pleating phenomenon results in a container wherein the meniscus of the fluid is readily readable and accurately ascertained.

Abstract: A pressure activated shut-off device which will prevent the flow of liquid in an intravenous administration set when the pressure in the system reaches a predetermined point. The shut-off device is utilized in an I.V. set wherein a pumping mechanism is utilized as the force for moving the liquid through a filter. The shut-off device has a biasing element which is set with a predetermined force so as to become activated and stop fluid flow so that the filter mechanism is not ruptured by excessive fluid pressure.

Abstract: An improved flow control device for regulating the flow of fluid through flexible tubing wherein the flow control device utilizes a rotatable member with trunnions positioned to be captively guided and rotated along guide surfaces. The rotatable member is easily inserted into the clamp body yet once it is placed therein it is difficult to remove without excessive force. The clamp body affords a rigid structure with the opposing walls being fixed at their ends yet are flexible enough to afford entry of the rotatable member into the clamp body for placement of the trunnions in the guide surfaces. In one embodiment, a ramp means is provided through an infeed section wherein the ridge portions forming the ramp merge with the guide surfaces so that when the trunnions of the roller move up the ramp and onto the guide surfaces, an outward flexing of the clamp wall is effected with a retention of the trunnions on the guide surfaces.

Abstract: A prefilled, readily activated syringe assembly wherein a fluid medicament and a diluent therefor can be intermixed in a syringe barrel with a venting thereof. A medical powder is sealed in a barrel by means of an intermediate slidable stopper and the diluent is sealed in the same barrel between the stopper and a plunger stopper. A bypass channel is provided in the syringe barrel which permits intermixing of the diluent and the medicament when the plunger stopper is moved toward the intermediate stopper. Movement of the plunger stopper inwardly in the barrel is afforded by means of a hydrophobic filter element associated with the nozzle portion. After intermixing of the diluent and the medicament the filter vent is pierced by means of a piercing tubular member to which is attached a hypodermic needle. Continued movement of the plunger stopper will expel the mixed medicament from the syringe.

Abstract: A feminine syringe unit wherein a housing with a valve member and nozzle serve as both a filling and dispensing port for an expandable syringe bag. The syringe unit includes a removable nozzle retainer which has slidably secured thereto a nozzle member. When the nozzle member is removed, the bag is easily filled through a filling orifice and a dispensing flap valve. For cleaning and drying purposes, the valve is also removable from the bag by means of its being engaged by a valve retainer which in turn is threadably engaged on a bag retainer. The unit is activated by moving the nozzle toward the bag whereby the inlet portion of the nozzle will abut against a flap valve so as to create fluid communication between the inside of the bag and the nozzle. A hold-open means is also provided for the nozzle inlet portion in the valve member so that when a force is exerted on the bag to eject liquid through the nozzle it will not force the valve closed.