Abstract: A seat plate assembly intended more particularly for the driving seat of a commercial vehicle has a base portion and seat cushioning thereon. Between the base portion and the seat cushioning is a flat operating element with which a switching device can be actuated by way of an operatively interposed elongate actuating member for switching a functional device of the vehicle on or off in dependence on weight on the seat. The operating element is provided at its underside with at least one drive portion with which the elongate actuating member is displaced in its longitudinal direction towards the switch when the seat plate assembly is loaded with a weight, whereby the switch is actuated. Connected to the elongate actuating member is a spring which is mechanically stressed when said displacement movement occurs.

Abstract: Described is a seat (10) having a spring means (36) with which the springing characteristic of the seat (10) can be adjusted as desired. For that purpose a two-armed pivot lever (38) is provided on a back element (34) of the seat (10) at least approximately horizontally and is pivotable about a central mounting axis (40). At least one at least approximately horizontally arranged tension spring (48) is fixed by its one end portion (50) to the one arm (44) of the pivot lever (38), the second end portion (54) of the tension spring (48) being fixed to a fixing portion (56) of a support lever (58). The fixing portion (56) is at least approximately aligned with the mounting axis (40). The support lever (58) is mounted pivotably to the back element (34) and is pivotally connected by its fixing portion (56) to a scissor element (18) of a scissor support assembly (16).

Abstract: A vehicle seat comprises a seat plate, a backrest pivotably movably connected to the seat plate, and an L-shaped base formed by a horizontal portion on which the seat plate is disposed and a vertical portion on which the backrest is mounted. The seat plate is provided at the underside of its front edge with retaining members which are spaced from each other in the longitudinal direct ion of the seat. The horizontal portion carries a stationary mounting support having a further retaining member for selective latching engagement with a retaining member on the seat plate, to secure the seat plate in an adjusted position on the horizontal portion of the base. Projecting from the underside of the seat plate are spring elements which are spaced from each other in the transverse direction of the seat and which slidably movably bear on the horizontal portion of the base by way of sliding shoes.

Abstract: A device for preventing adhesions or binding of tissue to tissue or of tissue to bone which comprises a composite of a first layer and a second layer, each of which comprises a biodegradable polymer, such as, for example, a polyethylene glycol/polybutylene terephthalate copolymer. The first layer is selected from the group consisting of a non-porous layer and a porous layer having a pore size no greater than 3.mu.. The second layer has pores which have a pore size of from about 30.mu. to about 250.mu.. The device is placed between two tissues or between tissue and bone. Such a composite device provides for tissue growth into the second layer, while the first layer acts as an adhesion-preventing barrier, and enables attachment of the device to tissue without suturing. Alternatively, the device comprises the first layer hereinabove mentioned and a second layer which is an adherence layer and which adheres to tissue and/or bone.

Abstract: A method for runnerless injection molding of a synthetic resin, provided with a novel valve gate for performing intermittent temperature control to forcibly change the property of a molten or solidified resin material adjacent to the gate, capable of performing a precision molding operation without leaving an improper gate mark. The apparatus therefor comprises a runner 3 with a temperature maintaining means for storing a molten resin and forming an injection passage, a gate 1 in communication with a cavity 2 connected to the end of the runner 3, a valve pin 4 enclosed within the runner 3, and an intermittent temperature control assembly P.

Abstract: An injection mold probe and a runnerless injection mold, in which the injection mold has a tip heater for intermittently heating a tip portion of the probe and a body heater for heating a body portion of the probe. The heaters being furnished with power from a single power source. The injection mold probe has its tip portion provided with a tip heater, which is made of platinum or a platinum alloy with the electric resistance thereof increased quickly with temperature increase caused by energization and its body portion provided with a body heater, which is made from a nicrome wire with the electric resistance thereof less increased with temperature increased caused by energization, the tip and body heaters being connected in series. The probe is mounted in a runner portion of a die with its tip portion disposed near a gate portion of the die.

Abstract: A sheet or web of fluoropolymer fibers, such as ethylene/chlorotrifluoroethylene fibers, which has been hydroentangled. Such hydroentangled sheets or webs may be employed as filters, masks, membranes, synthetic papers, industrial fabrics, or liquid separators for use in oil-in-water or water-in-oil emulsions.

Abstract: A method of injection molding of polyethylene terephthalate resin which includes a process to heat and melt polyethylene terephthalate resin by means of plasticizing system, and inject the molten polyethylene terephthalate resin under a desirable injection molding pressure from nozzle part 8 through manifold part 9 and runner part 1 into cavity 4, and at the same time of the injection molding, to perform the opening and closing motion of gate 3 part by melting or solidifying the solidified or molten polyethylene terephthalate resin remaining at the gate 3 part by means of the intermittent temperature control apparatus 7 made of a platinum wire provided with along the vicinity of the gate 3, so as to produce the moldings removing the residual sprue at the gate 3 part. By the present invention, the polyethylene terephthalate resin which is very difficult to process by injection molding, is produced as moldings not accompanying a whitening phenomenon but of a high quality with superior transparency.

Abstract: Primary human cells which are genetically engineered with DNA (RNA) encoding a marker or therapeutic which is expressed to be expressed in vivo. Such engineered cells may be used in gene therapy.

Abstract: A valve gate injection molding apparatus, in which the gas produced within a heating probe is discharged through a gas discharge outlet groove from the base side of a valve pin, leak of the resin melt is prevented by flowing a cooling fluid for controlling the temperature to increase viscosity of the resin melt, and preventing overheat of the valve pin actuating assembly caused by heat conduction from the heated and pressurized resin melt.

Abstract: An airship of semirigid type including hydrogen which floats for a long period of time without supplying energy, and is for example in use for a relay station or a wide range observatory station. The airship is powered by a solar cell battery in the daytime and by a hydrogen engine in the nighttime.

Abstract: A composition comprising a halopolymer, such as an ethylene/chlorotrifluoroethylene copolymer, an effective stabilizing amount of an ionomer, and an effective stabilizing amount of a compound such as a phosphite of an organic polyhydric phenol; a thioester; a phosphite; or a hindered phenolic antioxidant. Preferred ionomers are metal salts of ethylene-acrylic acid copolymers, and metal salts of sulfonated polystyrenes. The stabilized halopolymers have improved resistance to thermal degradation and suffer less discoloration when subjected to high melt processing or extrusion molding temperatures.

Abstract: A sample collection container having inner and outer chambers. The container may be fitted with upper and lower stoppers to provide a vacuum within the container. The device is adapted for the collection of a fluid, such as blood, in the inner chamber. The blood then passes from the inner chamber to the outer chamber upon releasing the vacuum. A concentrate of fluid components of blood, cellular debris, and contaminating microorganisms, if present, may be left in the inner chamber, and be removed subsequently from the inner chamber for testing for the presence of contaminating microorganisms.

Abstract: In a dehydrogenation process wherein catalyst is regenerated off-stream by use of heated air, at least two reactors are in the regeneration cycle, with regeneration air being heated to regeneration catalyst temperature for introduction into the first reactor, and thereafter being reheated to catalyst regeneration temperature and introduced into the second reactor. Such air may also be employed for preheating feed to the dehydrogenation reactor and/or for steam generation by heating such air to the temperature required for such procedure.

Abstract: A process for treating musculoskeletal tissue which comprises contacting musculoskeletal tissue with both an effective amount of at least one treating agent selected from the class consisting of antibiotics and disinfectants, and an agent to increase diffusion of the treating agent into the tissue, such as a surfactant or a permeation enhancer. The disinfectant and/or antibiotic function in killing bacteria, vegetative organisms, and viruses (including HIV virus) which may be remaining in the musculoskeletal tissue. A preferred disinfectant is ethanol.

Abstract: A warning system to alert the rider of a vehicle such as a bicycle or motorcycle that a safety helmet is not being worn when the rider is mounted on the vehicle seat. The warning system includes a helmet holder for storing the helmet when the vehicle is not being used. A first switch is secured to the helmet holder and is adapted to be positioned so that it closes when a helmet is in the holder, and a second switch is secured to the vehicle and is adapted to be positioned so that it closes when a rider is mounted on the vehicle seat. The two switches are electrically connected in such a manner that an alerting device is energized if both switches are closed, indicating that a rider mounted on the vehicle seat is not wearing a safety helmet.

Abstract: A support structure for a seat squab includes a scissor support assembly on a base element. The support assembly has two support assembly elements which are not positively connected together but simply bear against each other. One element has one end connected to a suspension spring and its other end pivotably mounted to the base element. The second support assembly element comprises first and second limb portions which are connected together by means of a connecting portion which bears loosely on the first support assembly element. The ends of the strip portions are pivotably mounted to the base element and the squab portion respectively.

Abstract: A sprung seat having an L-shaped base arrangement includes a spring means for adjusting the springing characteristic of the seat as desired. For that purpose the seat has a two-armed pivot lever mounted pivotably about a central horizontal mounting axis on a back portion of the L-shape, in an at least approximately horizontal position. One arm of the pivot lever is connected to one end of at least one at least approximately horizontal tension spring of the spring means. The second end part of the tension spring is fixed to a fixing portion of a support lever. The fixing portion is at least approximately aligned with the mounting axis about which the armed pivot lever is pivotable. The support lever is pivotably mounted to the back portion of the L-shape and is connected by its fixing portion to a member of the scissor support assembly.