AUTOMATIC CONTROL CIRCUIT FOR BRAKE CONTROL DEVICES An automatic control circuit for a brake control device, relays around the device, light lamps and other parts to be operated differently under different circumstances, e.g., braking while running, braking to stop, releasing the brake pedal after braking, starting, parking after braking, and operation when the car s-tops is semi-automatic. The au...

A copolymer reaction product of a salt of a quaternary acrylate and a polyalkylene glycol acrylate. The copolymer is useful as an anti-static agent in anti-static varnish compositions for packaging gravure printing.

A process for preparing a polyurethane foamed article comprising a hard foam encapsulated by a soft foam is provided. The process provides improved encapsulation over that described in EP 68820 by frothing the hard foam formulation, with for example carbon dioxide, before it is introduced onto the rising soft foam formulation. The hard foam formulation is frothed so that is density is between 75% ...

A cutting apparatus (1) for sheet-like materials comprises a traveling mechanism having a traveling support member (15) movable above a sheet-like material (2), a cutter (48) hung from the traveling support member of the traveling mechanism and movable in direction perpendicular to traveling directions of the traveling support member, a first detecting device (30) for detecting positions of the cu...

A process for the gasification of sewage sludge or other carbon-containing waste materials in a gasifier is described. A solid fuel and oxygen-containing gas are also fed into said gasifier. The residues formed during gasification collect at the bottom of the gasifier in the form of molten slag. Gasification takes place in a fluidized bed formed above the slag bath and constituted by the dried sew...

A circuit is disclosed for detecting manufacturing deficiencies in semi-conductor devices and selecting marketable chips. The present invention comprises a speed circuit to determine the speed at which a particular chip operates. The speed circuit is a small, self-contained circuit that may be placed on any type of semi-conductor chip. It includes an oscillator, a counter, and a control logic circ...

PCT No. PCT/GB89/00036 Sec. 371 Date Sep. 15, 1989 Sec. 102(e) Date Sep. 15, 1989 PCT Filed Jan. 16, 1989 PCT Pub. No. WO89/06740 PCT Pub. Date Jul. 27, 1989.A wire line operated shut-in tool for a tubing string of an oil or gas well has a locking mandrel for cooperation with a ported landing nipple disposed below a packer in the tubing string to lock the tool in position, and a mandrel core which...

During an initial priming procedure, the blood draw/return needle(s) fluid flow system is primed with a nonblood fluid (e.g. a saline solution) having known fluid viscosity. The pressure drop occurring across the needle orifice(s) is determined at a knonw flow rate for this predetermined fluid of known viscosity. During subsequent blood constitutent processing operations, the pressure drop across ...

Polyether ketones based on diphenols corresponding to the following general formula (I): (I) wherein R1 and R2, independently represent hydrogen, halogen, C1-C8 alkyl, C5 or C6 cycloalkyl, C6-C10 aryl or C7-C12 aralkyl; m represents an integer of from 4 to 7; R3 and R4, may be selected individually for each X and independently represent hydrogen or C1-C6 alkyl, and X represents carbon...

A porous polymeric medium having low protein affinity is provided comprising a porous polymeric substrate and a polymer coating having a low affinity for amide group-containing materials formed in situ at the surface of the porous polymeric substrate from a polymer having a plurality of hydroxyl groups and a cross-linking agent having functional groups which react with the hydroxyl groups.

A tubular fibrous structure having smaller diameter fibers randomly oriented and larger diameter fibers and/or bundles of fibers circumferentially oriented. The structure includes elongated voids also generally circumferentially oriented.