Abstract: A continuous ditch excavator including a chassis having a forward portion and a rear portion, first and second motive elements carried by the chassis in laterally spaced-apart relation to each other for cooperatively driving the chassis along a ground surface, the first and second motive elements defining a centrally-disposed excavation work area therebetween, and an excavating auger mounted on the chassis in the excavation work area forwardly of the rear portion of the chassis and rearwardly of the forward portion of the chassis for penetrating and excavating a ditch in the ground as the chassis is driven along the ground,the auger defining a pivot point about which the first and second motive means are adapted to rotate the chassis to control the direction of ditch excavation.

Abstract: A door safety barrier for being positioned adjacent a doorway having a door mounted therein for interfering with movement of the door relative to the doorway. The door safety barrier defines a security opening between the door and the doorway for preventing entry therethrough, and includes a housing for being embedded into a floor adjacent the door. The housing defines a chamber therein. An elongate plunger is positioned within the chamber for reciprocating movement between an extended, operative position above the floor for engaging a side of the door to prevent movement of the door past the plunger, and a retracted, inoperative position below the bottom of the door for permitting passage of the door over the plunger. A latch assembly cooperates with the housing and the plunger for alternately locking the plunger in the extended, operative and retracted inoperative positions, respectively.

Abstract: A heel elevating device is adapted for being applied to the lower leg of a reclined patient to elevate the heel of the patient above a supporting surface. The heel elevating device includes a generally U-shaped lower leg support having a base and first and second opposed extensions. The extensions define an opening therebetween for receiving and supporting the lower leg of the patient. A comfort liner is secured to an interior of the lower leg support for cushioning the lower leg and providing a soft, protective surface against the skin of the patient. Adjustable fitting straps are provided for adjustably fitting the lower leg support to the lower leg of the patient.

Abstract: A method of infusing liquid dyestuff into synthetic yarns at the point of fiber production, comprising the steps of providing a molten polymer, at least one non-molten liquid dye, and a spin pack assembly adapted for receiving and mixing the molten polymer and the non-molten liquid dye therein to form a colored molten polymer composition. The spin pack assembly includes a screen for filtering the molten polymer therethrough, and a spinneret adapted for receiving and extruding the molten polymer composition therethrough to form a plurality of colored fibers adapted for being formed into the synthetic yarns.

Abstract: The present invention is directed to an apparatus and method for determining vane wear in rotary vane pumps that operate using slideable vanes. A view port is formed in an end of the pump housing. The view port is dimensioned such that a width of the port represents a predetermined amount of vane length loss. The view port is positioned in relation to the slots such that an end of the vane not in engagement with the wall of the pump will appear in the port only after a predetermined amount of vane loss occurs, and relative to the slots and the vanes to allow a determination of vane length for each vane when the vane is in engagement with the wall.

Abstract: Rigid structural members, profiles, joints, and forms added to structural sandwich panels to provide higher strength, integral joining joint, and single facing sheet manufacturing. Facing sheets (20) and (22), rigid structural members (24) and (26), latch side and pin side cam-locks (34) and (32), fabricated wire truss assembly (48), and rigid structural headers (28) and (30) and an integrated top plate (29) are positioned into containment form assembly (58) in the proper position. Facing sheets (20) and (22) are placed in position in the containment form assembly (58) forming a structural sandwich panel assembly. A foam resin core material (40) is injected into the structural sandwich panel assembly and allowed to cure. The resultant structural sandwich panel includes rigid structural members (24) and (26) and elongated recesses (36) and (38) which also form a joint for joining abutting structural sandwich panels together and cam-locks (32) and (34) used to secure adjoining panels together.

Abstract: A control system for measuring load imbalance in a laundry washing machine having a non-vertical axis of drum rotation, and then using the value obtained for the load imbalance to calculate a maximum permissible angular velocity for the drum during the water extraction cycle.

Abstract: A training bat including a handle having proximal and distal ends with a diameter of a conventional baseball bat and an elongate ball-striking element having proximal and distal ends. The ball-striking element is secured to the handle by the proximal end and extends outwardly from the distal end of the handle. The ball-striking element has a diameter no greater than one-half the diameter of a conventional baseball bat for providing a training effect as the bat is used to swing at a ball pitched to a batter using the training bat. Weights may be removed and added as desired to change the weight. The weights are positioned near the center of the bat in order to maintain the proper balance of the bat.

Abstract: A lug nut dispenser including a housing having an interior wall defining an elongate chamber for receiving lug nuts therein, an exterior wall, an upstream end for releasably receiving a drive impact tool, and a downstream end defining a port communicating with the chamber for permitting consecutive release and ejection of the lug nuts therethrough. A displacer ring is carried on the exterior walls of the housing and slides relative thereto. A displacer is connected to the ring and extends through a slot defined by and extending through the housing into the chamber. The displacer slides along the slot for moving the nuts downstream. The displacer includes a shoulder for engaging a nut positioned in the chamber for permitting sequential, axially-aligned movement of the nuts through the chamber. There are also at least two spaced-apart, flexible detent arms. Each arm has first and second ends. The second end includes a tip and is moveable between nut-retaining and nut-dispensing positions.

Abstract: A split door jamb having a support frame and a trim frame utilize a unique mounting system. The support frame includes two vertical side frame members connected by a laterally-extending top member. Each side frame member includes a plurality of adjustable fasteners for mounting the side frame members to walls defining a door opening. One frame member has at least one hinge pad for carrying a door or similar object to cover the opening. The support frame carries outwardly-extending tongues and tongue fasteners adjacent to the tongues. The trim frame has two vertical side trim members connected by a laterally-extending top trim member. The trim frame carries a tongue receiving cavities that receive the tongues extending from the support frame. Each trim member also carries fasteners for complementary connection with the support frame fasteners to adjustably connect the trim frame and support frame together.

Abstract: A passenger seat meal tray latch assembly having a pair of laterally spaced-apart latch plates for being secured to a surface of a seat back of a passenger seat directly above a meal tray stowage position, a cross-member for being positioned laterally across the surface of the seat back and locked to the seat back by releasable connection to the pair of latch plates, a latch mounted on the cross-member and movable between a retracted position for permitting the meal tray to be moved into and out of its stowage position and an extended position for latching the meal tray to the seat back.

Abstract: A frictional heating system for communicating with an air supply duct to heat and cool air in a building, including an enclosure defining an interior, two air inlets, and at least one air outlet therein communicating with the interior of the enclosure for permitting air flow therethrough. A plurality of turbines are carried on a common shaft for rotation therewith. Each of the turbines is positioned within the enclosure for drawing air into the enclosure and frictionally heating the air therein. A first conduit is in fluid communication with the air outlet, a water heater and an air conditioning system, for moving frictionally-heated air from the air outlet to one or the other of the water heater and the air conditioning system. A motor assembly including a motor is operatively connected to the common shaft and positioned outside the enclosure for driving the common shaft and turbines.

Abstract: A surface finishing apparatus for in-line outer surface polishing of elongate cylindrical metal stock to apply a long scratch finish, including a stock feeder for feeding a length of stock through the finishing apparatus from an infeed downstream to an outfeed position while rotating the stock about its longitudinal axis and a polishing assembly for finish-treating the outer surface of the stock as the stock is fed through the apparatus to apply a long scratch finish thereto. The polishing assembly includes a rotatable finishing wheel having a finish-treating peripheral surface for being applied in an in-line orientation against the outer surface of the stock as the stock is simultaneously fed and rotated through the finishing apparatus.

Abstract: An aortic root prosthesis for being implanted into a patient during a valve sparing surgery as a replacement for a biological aortic root segment of an ascending aorta is disclosed. The aortic root prosthesis includes a hollow, annular tube having proximal and distal ends, and an inner and outer wall. The distal end is for being attached to the ascending aorta. A plurality of sinuses are circumferentially connected to the proximal end of the tube. Each of the sinuses is adapted for being attached to the aortic wall. Each of the sinuses also includes contouring means for imparting a convex contour to an outer wall of the sinus to thereby create a space between the open leaflet and its respective sinus to prevent impact between the leaflet of the valve and the inner wall of the sinus.

Abstract: Orthopedic bandage comprising a flexible backing material and an adhesive composition, characterized in that the adhesive composition has a thermoplastic behavior, is at least tacky above an activation temperature, forms at least partially crystalline structures below the activation temperature, and at a temperature below 40° C. has a shear modulus of more than 100,000 Pa.

Abstract: A bicomponent elastic fiber that includes a core formed of an elastic fiber and having a sheath formed of a non-elastic material surrounding the core. The sheath has at least one cut therein extending at an angle to the length of the fiber to expose and release the elasticity of the core elastic fiber. This provides elasticity to the bicomponent elastic fiber.

Abstract: A load-bearing structural member includes an elongate structure body and a strength-reinforcing flat steel strap. The structure body has a top and a bottom, and first and second opposing ends. The steel strap extends along the length of the structure body from one end to the other, and is adapted for transferring an intermediate load acting on the structure body outwardly to the opposing ends of the structure body. Anchor plates located at respective opposing ends of the structure body engage and hold the strap in tension.

Abstract: A mechanic's body support including first and second horizontally-oriented and spaced-apart base rails and first and second spaced-apart support rails. Each of the support rails has one end connected to a respective one of the first and second base rails and diverging upwardly from and along the length of the base rails for supporting a mechanic in an elevated position over the engine compartment of a motor vehicle. A chest pad and a knee pad are mounted in spaced-apart relation between the support rails for securing the support rails in a fixed, spaced-apart relation, and for supporting the chest and knees of the mechanic.

Abstract: An openwork tubular knitted fabric formed of closely knitted, fine gauge yarns formed into knitted loops utilizing at least 11 needles per inch and having at least 25 courses per inch. The fabric is formed by using needles having a hook formed in a top end of a needle shank and a latch pivotally mounted on the needle shank below the hook for opening and closing the hook, and including a deflector for deflecting a loop of yarn being formed by a needle into the vertical plane of an adjacent needle, and a needle cam mounted for reciprocal movement between first and second vertically-spaced positions. The fabric is characterized by having a fine, dense background with small, closely-spaced holes which enable a highly-detailed pattern suitable for a wide range of undergarments and hosiery products. The density and fineness of the fabric provides both the comfort and lack of show through necessary for many garments of this type.