Abstract: A Doppler scan is made of a person's blood vessels, a recording is made of the resulting plural-frequency sounds, and then successive aural sensings of selected frequency-range portions of that Doppler scan recording are made.

Abstract: A pipe union and compound seal has a first pipe member with a central passageway, a sealing surface and a flange with a shoulder. The union has a fastening member adapted to slide around the first pipe member. The fastening member has a matching flange to abut the first pipe member's flange and has threads formed along the inner surface of the fastening member. A second pipe member has a matching central passageway and threads formed along its outer surface to receive and engage the fastening member's threads. The second member has a face opposing the first pipe member's sealing surface with a trough in the face for receiving and retaining the compound seal. The compound seal is positioned in the trough and in a first embodiment has a central spring and a U-shaped outer shell surrounding the spring. The open end of the shell is disposed radially inward so that increased pressure within the central passageways increases the sealing engagement between the shell and the pipe union.

Abstract: A wheelchair ergometer provides for the stationary exercise of a subject in a wheelchair and includes a wheelchair mounted on a support with the driving wheels mounted on an elongated central shaft. A set of flywheels is mounted at either end of the central shaft and has provision for mounting weights corresponding to the weight of the subject. The flywheels load the central shaft and simulate the translational inertia present in a moving wheelchair. A torque platform is supported by bearings from the central shaft and is coupled to a friction type brake which may be selectively tightened about the central shaft to cause the brake and platform to deflect in relation to the torque applied to the central shaft. A scale fixedly mounted adjacent the torque platform measures the deflection to indicate the torque on the shaft.

Abstract: A universal drive belt includes a hollow flexible tubing which may be cut to proper length and a fastener for joining together the ends thereof. The fastener includes a medial portion in the shape of a helically wound coiled spring with a hooked head formed at each end thereof. The hooked heads are slightly larger than the internal diameter of the tubing and have a pointed tip which digs into the side-wall for anchoring the fastener and preventing its removal. The coiled spring medial portion allows twisting and flexing of the ends of the hollow tubing during use without damage or loosening of the fastener. The universal drive belt may be rapidly and easily installed without the use of tools.

Abstract: A coin-handling device responds to coins of at least three different values to establish corresponding credits on a movable credit-establishing element. A switch is closed in response to the insertion of each of those coins; and that switch energizes an electromechanical actuator to effect advancement of that credit-establishing element. Only that switch, that actuator, and the mechanical elements associated therewith are needed to effect the establishing of those corresponding credits.

Abstract: An insulating and weatherproof protective cover adapted to protect and insulate a mobile home has an outer layer of waterproof material and an inner layer preferably of foam-type insulating material bonded to the outer layer for enclosing the roof and side walls of a mobile home. Openings are cut in the sides to permit the opening and closing of windows and doors. Transparent coverings may be provided which roll up and away from the window openings. Door panels may be provided and hinged from the sides of the mobile home cover to insulate the door. Tie-downs are provided along the lower edge of the cover and may be used to secure the cover to the undercarriage of the mobile home or its supporting pad.

Abstract: A method of playing a game has a plurality of groups of distinguishably identified markers which are tossed from behind a throwing line at a receptacle in an attempt to put the marker in the receptacle. The receptacle is recessed into the ground or other playing surface and is approximately thirty feet to fifty feet away from the throwing line, which may be another receptacle. A protective cover may be provided to enclose the receptacle when not in use to avoid any accidents or the accumulation of contamination therein. The marker may be shaped as a disc or washer and may be sufficiently heavy to be substantially unaffected by all but the strongest wind during play.The game is played by the method of choosing teams, distributing the markers amongst each team, and then alternately tossing the markers from behind the throwing line at the receptacle until all of the markers have been thrown.

Abstract: Waste water is reclaimed for re-use by emulsifying with a water insoluble (or oil soluble), high molecular weight, anionic surface active oil, then breaking the emulsion by physical or chemical methods, thereby producing a coherent floc which occludes insoluble matter suspended in the water, then separating the floc from the purified water in a coherent mass.

Abstract: A liquid dispenser has a transparent frame which houses a rotatable mounting assembly of a plurality of mounted liquid compressible containers having needle discharge outlets having covering caps to block liquid flow. A control unit can be operated so that the mounting assembly is rotated by a motor secured to the frame, and locked in position by a solenoid powered lock pin mounted to the frame which engages the mounting assembly. When the mounting assembly is locked into discharge position, a selected container needle is aligned with a discharge passage in the frame. Then a motor-driven compression drive unit secured to the frame is operated to move a gear rack forward so that a flange secured to the rack engages the end of the liquid container to drive it forward to cause the container needle to puncture its cover cap and also a diaphragm at the frame discharge passage.

Abstract: A compact boring tool has a support base with a pair of blocks mounted thereon to mount a work piece and a feed support block spaced apart therefrom having a threaded opening for supporting a feed screw. The feed screw has threads matching the threaded opening of the support block and a quill rotatably mounted through its center, the quill having a socket head for being driven and a shank end for receiving and securing a drill bit or drill chuck. A locking pin selectively locks the quill to the feed screw to provide for power backing out of the feed screw and quill after a hole has been drilled in the work. A support plate attachment is provided for converting the boring tool for surface boring operation.

Abstract: A grill for cooking has a gas burner, a gas igniter adjacent that burner, and a piezo electric spark source. The grill has a metal casting; and the igniter has a bracket that mechanically secures and electrically connects that igniter to that casting, and also constitutes one arcing contact of that igniter. One contact of the spark source is electrically connected to the casting; and a wire connects the other contact of that spark source to a second arcing contact of the igniter. A shielding portion of the igniter overlies the confronting ends of the arcing contacts to keep fat, meat juices and other drippings from engaging those confronting ends.

Abstract: A scaffold device has two leg members having at their upper end spacers to space the legs away from a wall or other structure. Each leg has a support assembly for a platform upon which a worker may stand. The support assemblies comprise a pair of sleeves which can be adjustably secured to the legs, and a pair of rods each having one end pivotally secured relative to their corresponding sleeves, with the other rod ends having lock holes to permit the rod ends to be secured at a position to support the platform level with the ground for safe operation. A cross rail connects each of the legs and acts to maintain the relative position of the legs and also acts as a safety device to prevent workers from falling off the scaffold.

Abstract: A fascia-protecting drip-diverting device has an upper portion which is thin enough to be telescoped upwardly into the narrow space between a fascia and a gutter which is disposed immediately adjacent that fascia, has a lower portion which is thicker, stiffer and stronger than said upper portion to enable it to withstand the forces which must be applied to that fascia-protecting drip-diverting device to cause that upper portion to telescope upwardly between that fascia and that gutter, has a stop which limits the extent to which that upper portion can be telescoped between that fascia and that gutter, and has flanges at the side edges thereof which displace those side edges outwardly away from the fascia to keep laterally-moving drips from reaching that fascia, and has the bottom thereof displaced below the level of the bottom of the fascia to cause drips to move downwardly below the level of, and then fall away from, the bottom of the fascia without engaging that fascia.

Abstract: A torque-transmitting, torque-sensing system has a first rotatable shaft which can be shifted radially in two orthogonally-displaced directions to be precisely concentric with a second rotatable shaft, has a first coupling element which is rotatable with but which is movable axially relative to one of those rotatable shafts, has a biasing means which urges the first coupling element for movement axially in one direction relative to the one rotatable shaft, has a second coupling element which is rotatable with the other rotatable shaft, and has a surface on one of those coupling elements which coacts with a complementary surface on the other of those coupling elements to enable those coupling elements to transmit torque from that rotatable shaft which is the driving shaft to that rotatable shaft which is the driven shaft while permitting the first coupling element to respond to a predetermined increase in rotation resistance of the driven shaft to move axially in the opposite direction relative to the one rota

Abstract: A mounting structure for vehicle suspensions for adjustably mounting first and second members of the suspension including a pin extending through aligned openings in the first and second members. The openings in one of these members are greater in at least one dimension than the pin which may be released from a locking condition to allow the pin to slide within the opening in the direction of its larger dimension producing movement of one of the members relative to the other for purposes of providing axle alignment, adjustment of axle load distribution, and the like.

Abstract: An automatic stirring device for stirring the contents of a cooking utensil includes a plurality of support arms. The support arms have insert pads to grip the sides of a cooking utensil. An agitator with a center post and agitator blades extends downward into the cooking utensil and a motor, mounted in one of the support arms with a drive shaft driving a central gear, rotates the agitator. One of the insert pads is slidably mounted to its support arm and may be operated to exert an inward force against the side of the cooking utensil to retain the stirring device on the utensil. A support pin may be screwed into the outer end of each support arm to prevent rotation of the stirring device about the cooking utensil by contacting the handle of the utensil and also to support the stirring device in a bath of soapy water for automatic cleaning. The agitator blades are adjustable to fit various sized utensils.

Abstract: A liner-separating tape-feeding machine that automatically feeds pressure-sensitive tape from a supply roll, peels the liner off the tape, delivering the tape in one direction and the liner in another and separating the tape into predetermined lengths. The liner is peeled from the tape by being brought around an edge at an acute angle from the tape, while it is kept under tension by having its feed roller move at a greater peripheral speed than the feed roller for the unseparated tape. Means are provided for optional delivery of a selected length of tape each time a previous piece of tape is removed from the machine.

Abstract: A suspension assembly having a unitized parallelogram structure with air springs for resiliently resisting movement of the axle upon loading and unloading. A hanger depends from the chassis of the vehicle and pivotally supports the forward ends of at least two torque beams or rods defining the parallelogram of the assembly. An axle seat is provided to which the axle of the vehicle is rigidly secured with the axle seat having a portion extending forwardly of the axle to which the rearward ends of the torque rods are pivotally mounted. The axle seat also has a portion extending rearwardly of the axle and air springs are mounted between the chassis and the forward and rearward extensions of the axle seat. The forward portion of the axle seat defines the pocket for receiving the rearward ends of the torque rods and the upper one of the rods is offset downwardly providing clearance from the axle seat. The rearward extension of the axle seat defines a compartment for housing an air brake cylinder of the vehicle.

Abstract: This invention relates to a hot water system which utilizes heat from the refrigerant of a refrigeration system to produce hot water. The utilized heat consists of the superheat of the refrigerant vapor, the latent heat of condensation, and part of the sensible heat of the liquid refrigerant. The water passing through a water-cooled condenser, which is part of the refrigeration system, is heated to a selected temperature by removal of both the superheat of refrigerant vapor, the latent heat of condensation, and part of the sensible heat of the liquid refrigerant as it passes through the condenser. The condenser has a water inlet and an outlet between which is connected a hot water storage tank. As the water in the condenser is heated by absorption of the superheat of the refrigerant vapor, the latent heat of condensation, and part of the sensible heat of the liquid refrigerant passing therethrough, the heated water rises and flows by convection into the storage tank.

Abstract: A spring clip break-away is used as the upper swivel point on a collar which secures a trolling motor to a retractor mounted on the bow of a fishing boat. The spring clip break-away has at least one spring clip secured to an upper support arm of the retractor with an arcuate section defining a recess for receiving a pin which is rotatably secured to the motor collar. During normal retractor use, the pin is held by the spring clips within the recess. When an unusually large torque is applied to the motor shaft, for example by the motor shaft hitting a submerged log, the motor rotates about a lower swivel point and pulls the pin out of the jaws of the spring clips, thereby allowing the motor and shaft to rotate under the bow and avoid damage to the retractor and the motor. After the log is removed, the pin may be quickly and easily re-positioned in the spring clips to permit immediate use of the retractor and motor.