Abstract: Perfusion dilatation catheter and method of manufacturing the same. The catheter has an elongated flexible shaft with an inflatable balloon mounted near the distal end of the shaft. A first lumen in the shaft communicates with the balloon for inflating and deflating the balloon. A second lumen extends between the proximal and distal ends of the shaft and is adapted to receive a guide wire. Openings formed in the side wall of the shaft on the proximal and distal sides of the balloon communicate with the second lumen to provide a path for blood to flow past the balloon when it is inflated.

Abstract: A tamper proof hasp apparatus for use with a conventional padlock incorporating a U-shaped attached shackle pivotable, when unlocked, about a shackle pivot leg. The apparatus includes first and second hasps incorporating respective first and second hasp plates, each formed on one end with a slot for receipt laterally thereinto of the pivot leg of the shackle and formed on the opposite end with bores for receiving the closure leg of such shackle. A spacer tongue projects from such one end of one of the hasp plates to engage one end of such body and maintain such one end spaced from the plates a distance sufficient to limit travel of such shackle relative to such hasp plates. The respective hasps are formed with guard plates projecting laterally of the hasp plates to restrict access to such shackle by tampering tools such as bolt cutters, hacksaws and the like.

Abstract: A method and apparatus for rotating a portion or segment of a casing string in a relatively highly deflected well bore. A straight well bore portion is provided adjacent the completion interval, beyond the deflected portion. A casing string is made up with a segment connected by a swivel to the remainder of the string. This segment is located in the straight portion of the bore. A drill string is lowered into the casing into engagment with a rotatable swivel portion fixed to the casing segment. The drill string is rotated to rotate the casing segment independently of the remainder of the casing string. This facilitates removal of excess mud cake from the annulus adjacent the casing segment, and also placement of cement in the annulus.

Abstract: Apparatus for expanding resilient tubing includes first and second pins, sized to be received into the tubing to be expanded. The second pin, extending from a carriage, is separated from the first pin by the movement of the carriage from a first position adjacent the first pin to a second position spaced apart from the first pin. The carriage is impelled by a foot-switch actuated air cylinder.

Abstract: First and second generally harp shaped guard halves, one being formed with a vertical mounting flange for attachment to the garage door jamb adjacent the hardware to be shrouded and each being formed with co-extensive planar walls projecting along the opposite sides of the hardware and formed with inturned peripheral flanges rounding the top and vertical length thereof for complementally mating together to generally shroud the hardware within such guard apparatus.

Abstract: A microprocessor-based perimeter thermal energy control system regulates heating and cooling in the perimeter area of a building in accordance with instantaneous and integrated heat flow measurements and instantaneous temperature deviation measurements. Control of heat pumps and air conditioning units is provided as is automatic switching between heating and cooling. The inherent thermal parameters of the space are inductively determined and used by the system to continually self-adapt to the heat flow properties of the space. The gain of the heat flow based control system is varied automatically as a function of the deviation between the actual space temperature and the desired set point temperature. Morning recovery is initiated and regulated in response to instantaneous and integrated heat flow measurements and inductively determined thermal space parameters and produces a near linear stepwise change in the temperature of the space from night setback to occupancy temperature.

Abstract: Dual lumen dilatation catheter and method of manufacture in which the catheter shaft is formed in a plurality of sections of different stiffness to provide optimum strength and flexibility at different points along the length of the catheter.

Abstract: An electrical switch mounting structure includes a housing for the switch, terminals on the exterior of the housing, a substrate incorporating an opening into which the housing is inserted, conductive elements on the base which contact the terminals upon insertion of the housing, and elastic mounting members which both retain the housing in the base and assure contact between the terminals and the conductive elements.

Abstract: A razor having a hollow handle housing a cartridge adapted to receive replacement blade units. The cartridge includes channels having specially configured holding portions enabling extraction of a blade unit by a razor head in a manner similar to that used to extract a blade unit from the package in which it was marketed.

Abstract: A rocker switch incorporating a sliding contact that provides both the detent action and high current capacity desirable in such switches. The sliding contact is in the shape of a shoe with an essentially inverted wedge shape in which the angle of the wedge is an obtuse angle with its apex pointed away from the rocker. The sliding of this shoe-like contact across electrical contacts in the bottom of the switch creates the switching action.

Abstract: Water directing apparatus for the jet pump inlet of a watercraft having a planing surface within which the inlet is formed. The apparatus is carried by the planing surface and includes a pair of laterally spaced apart, longitudinally extending side fins projecting downwardly of the planing surface. Curvilinear, transversely disposed upstream and downstream vanes are oriented to direct water into the inlet, the angles of attack of the vanes being established to direct boundary layer water into the inlet without separation. The vane combination achieves water flow directional change with minimum drag and flow separation. An embodiment is disclosed employing a vane movable in response to inlet passage pressure.

Abstract: Stiffened dilation catheter and method of manufacturing the same. The catheter has a relatively stiff proximal end portion formed by bonding a relatively stiff tubular member coaxially within the proximal end portion of a relatively soft outer tubular member. The outer tubular member has a distensible portion which forms an inflatable balloon. An inner tubular member or shaft having an axial lumen adapted to receive a guide wire is positioned coaxially within the other tubular members. The distal end portions of the inner and outer tubular members are sealed together to close the distal end of the balloon, and an annular passageway for inflating and deflating the balloon is formed between the outer wall of the inner member and the inner wall of the stiffened proximal end portion of the outer tubular member. The relative wall thicknesses of the inner and outer tubular members can be varied to provide any desired stiffness or profile of stiffness along the length of the catheter.

Abstract: Freshly sawn green timber is branded with identification or grading symbols sing an aqueous acid solution of ferric ions to produce blue-black markings. A suspension of iron oxides in a solution of ferric chloride and ferric nitrate produced by dissolving iron in a mixture of hydrochloric and nitric acids gives particularly good results.

Abstract: The invention is a carburetor cleaner containing ingredients which are not listed as hazardous by the Director of the California Department of Industrial Relations. Said cleaner comprises water, sodium meta silicate, trisodium phosphate, the tetrasodium salt of ethylene diamine tetraacetic acid, sodium or potassium hydroxide, tall oil fatty acids, a synthetic detergent, and butyl carbitol.

Abstract: Perfusion-type balloon dilatation apparatus having a guiding catheter with proximal and distal extremities and with a flow passage extending therethrough. A balloon dilatation catheter is disposed in the guiding catheter. The balloon dilatation catheter is comprised of a flexible elongate tubular member having proximal and distal extremities and having a first lumen extending therethrough. First and second inflatable balloons are carried by the tubular member and having their interiors in communication with the first lumen in the tubular member. The first balloon is positioned within the guiding catheter. The second balloon is positioned adjacent the distal extremity of the tubular member. A second lumen is carried by the tubular member and extends through the first and second balloons and through the distal extremity of the tubular member. The second lumen has an opening proximal of the first balloon and opens into the interior of the guiding catheter.

Abstract: This invention relates to an improved chewable object or toy formed from a polyurethane resin having an aqueous based flavor or odor incorporated therein after the object or toy has been formed. The object or toy is particularly suitable for domestic animals such as dogs and cats.

Abstract: Steerable low profile dilatation catheter having a flexible elongate tubular member with proximal and distal extremities and with a flow passage extending therethrough. An adapter is secured to the proximal extremity of the tubular member. A separate balloon having proximal and distal extremities is provided. The balloon has its proximal extremity mounted on the distal extremity of the flexible elongate tubular member. A core wire extends through the flow passage of the tubular member and through the balloon and beyond the distal extremity of the balloon. A tip coil is provided which is formed of a radiopaque material and has proximal and distal extremities. The proximal extremity of the tip coil is secured to the distal extremity of the balloon. The distal extremity of the core wire extends into the tip coil but is spaced from the distal extremity of the tip coil.

Abstract: A faucet fixture for mounting over the faucet opening in sink structure and including a valve body capable of being pulled upwardly of the faucet fixture housing to an elevated position for inspection or maintenance. The faucet fixture includes an upper mounting plate having a threaded central bore for receiving a threaded sleeve for securement of the plate and sleeve to the sink structure. The valve body is removably secured to the mounting plate, and a potable water conduit attached to the valve body extends slidably through the sleeve for distance at least equal to the height of the housing which supports the valve body in position so that the valve body can be inspected. In one embodiment the sleeve also slidably accommodates inlet and outlet waste water conduits associated with a reverse osmosis unit so that an airgap arrangement attached to the valve body can be raised and inspected by sliding the three conduits upwardly through the sleeve.