Plasmapheresis apparatus is disclosed which comprises a unique combination of blood withdrawal, separation and return means, together with automatic cycle control means. This apparatus can withdraw whole blood from a donor, separate it into plasma and non-plasma components, and return the non-plasma component to the donor while the donor remains connected to the apparatus throughout the entire pro...

. A device for use in the formation of lead-acid battery plates comprises a hollow, elongated body which at one end is formed with a hole communicating with the bore in the body and is adapted for insertion into the filling and venting aperture of a battery lid. A closure member is provided at the other end of the body and is formed with an opening to allow gases generated during formation to vent...

A cutting mill for comminuting or fragmenting solid material and separating the same according to particle size is disclosed. The cutting mill comprises a housing having an upper pivotable part and a lower part, a bladed rotor rotatably mounted in the upper part and stator blades mounted in the upper part for cooperation with the rotor blades. The lower part has an opening covered by an easily rep...

In the illustrated embodiment, a single counterweight suspended on a traction cable compensates a plurality of differently moving apparatus parts and is of significantly lesser weight than corresponds to the sum of weights of the compensated apparatus parts. The cable is shown as coupled with the sighting device beneath the patient's support as well as with the carrier column for the X-ray tube wh...

PURPOSE:To obtain stable operational conditions without any malfunction by detecting the malfunction of a programmable IC and by informing it to the CPU side. CONSTITUTION:An output port P1 of a pogrammable IC5 set to an output port at a normal condition, and its output level changes an H and an L. When noise enters and an action mode of the IC5 is released, the port P1 becomes high impedance; the...

PURPOSE:To discriminate CPU runaway securely and to stop a CPU by checking whether or not the prescribed address is accessed and the prescribed data are outputted and discriminate the CPU runaway. CONSTITUTION:When a CPU1 runs away, writing of the prescribed data against the prescribed address will not be executed; therefore an output VN3 of an NOR gate N2, which inputs an output of an access dete...

PURPOSE:To detect a program abnormal running not detected by the supervisory time system by adopting the constitution that an operating state signal of a computer is converted into a program running state signal and the signal is compared always with a normal running pattern. CONSTITUTION:The operating state signal of the computer B is fetched sequentially to a signal converting circuit 1 and conv...

PURPOSE:To decrease the scale of circuit by providing a clock gate circuit between a clock generating section and a counter section constituting a supervisory timer. CONSTITUTION:A basic clock waveform a' generated from a clock generating section 11 becomes an input of a counter section 12 via a clock gate section 19 when an output waveform h' of a counter section 12 is at L and frequency- divided...

A method of forming a puncture preventing layer on an innner surface of a pneumatic tire including the steps of extruding sealing material and pulverizing the extruded sealing material into fine particles for coating the inner surface with a layer of the sealing material under pressure through action of centrifugal force. For effecting the above described method in an efficient manner, there is al...

Urethane-modified isocyanurate foams are prepared by catalytically condensing an organic polyisocyanate in the presence of a polyol and from 5% to 50% by weight based on the weight of the organic polyisocyanurate of an ammonium phosphate. The resulting foams are characterized by improved flame retardancy and strength properties.

A solution containing cellulose dissolved in a tertiary amine N-oxide solvent containing a nonsolvent for cellulose such as water is shaped by extrusion or other shaping process to form a shaped cellulose fiber, rod, plate, tubing or film. The extruded shaped article is stretched in air while still a solution to impart improved physical properties thereto and the cellulose is precipitated from the...

A composition for a crosslinked polyolefin foam is prepared from 20 to 75% by weight of a crystalline propylene copolymer containing 1 to 15% by weight of ethylene and having a crystallinity higher than 50% and 80 to 25% by weight of polyethylene.

Expandable styrene polymer particles having reduced flammability are made by incorporating from 0.1 to 15 weight per cent of non-polymeric organic halogen compounds into the polymer during impregnation of the polymer particles with a blowing agent in aqueous suspension. Temperatures greater than 90.degree.C., during the impregnation step, often cause degradation of the halog compound and subseque...

A control coupling in which an enclosure houses first and second sets of mutually interleaved elements in a viscous fluid. The first and second sets of elements are arranged for rotation about a common axis and for driving connection with first and second rotatable members respectively. The quantity of liquid within the enclosure and the construction of the enclosure are such that, at a predetermi...

A device for controlling a motor vehicle clutch is disclosed. A hydraulic control system coupled to the disengagement lever of a clutch selectively engages and disengages the clutch responsive to a control signal. The control signal is generated by a control circuit which receives a first signal representative of the speed of the vehicle and a second signal representative of the rotary speed of th...

The drive shaft of a motor can be coupled to an output shaft by an electromagnetically activated friction clutch. The output shaft can be braked by an electromagnetically activated friction brake. The motor drive shaft rotates at constant speed. The rotary speed of the output shaft is regulated by negative-feedback action to maintain a selected value, by activating the clutch and brake alternately...