Abstract: A headwear piece having a crown defining a first opening for reception of the head of a wearer, an inflatable bladder mounted to the crown so that the bladder resides between the crown and a wearer's head in the crown opening, structure for selectively introducing a fluid into the bladder, and structure mounted to the crown for covering the fluid introducing structure and allowing operation thereof from a location externally of the crown.

Abstract: In a machining device for machining precision, in particular dental, workpieces in a machining chamber surrounded by a housing, having an inspection window with two gripping holes arranged to the two sides of the inspection window, the machining chamber is preferably connected or connectable to a suction device and arranged in the machining chamber is at least one blasting nozzle for blasting and/or a demolding tool for demolding and/or an air nozzle for blowing off the workpiece.

Abstract: A dispenser is provided for dispensing the extrudable contents of a collapsible container having a nozzle through which the container can be discharged by collapsing the container. The dispenser is of a piston/cylinder device, with the piston having a container-engaging face provided with a contoured structure of a predetermined configuration corresponding generally to a collapsing profile of the collapsible container. An elongated flexible valve device is slidably mounted relative to the housing and includes a coupling end coupled directly to a trigger member of the dispenser and a valve end for opening and closing an opening in the housing which defines the cylinder of the device. The flexible valve device is a band member of plastic material and is operatively associated with a mechanism for holding the valve open when a cover of the housing is removed and for automatically closing the valve when the cover is replaced.

Abstract: A unitized thrust bearing for reducing axial frictional forces resulting from axial loads on first and second abutting parts rotated relative to one another in a fishing reel. The thrust bearing has an annular outer race having a forward wall with a rearwardly facing surface and a forwardly facing surface and a bore for axially receiving the first abutting part. The outer race further includes a peripheral sidewall. The outer race is configured to be axially received in a seat in one of the first and second abutting parts. The thrust bearing further includes an annular inner race having a center shaft receiving bore, a rearwardly facing surface defining a support surface for the other of the one of the first and second abutting parts having the seat and a forwardly facing surface defining an axial ball contacting surface. The inner and outer races are axially received one within the other.

Abstract: The problems of minimizing size and weight in an aircraft and avoiding requirements for custom design are minimized in a generator control unit (22) provided with separate digital control circuits (74 and 76) for implementing voltage regulation and speed control. These circuits (74 and 76) are manufactured using custom very large scale integration (VLSI) technology to reduce size, weight, life cycle costs and improve reliability.

Abstract: For maximizing creative play, a hand puppet kit includes a sock-like body member formed of a flexible material to have a hand receiving opening at one end thereof. The kit also includes a separate sheet of flexible material together with at least one pattern for creating a piece in a predetermined shape from the separate sheet of flexible material. With these features, the hand puppet kit further includes at least one portion of a hook and loop fastener to be secured to the piece.

Abstract: In order to achieve ignition at altitude, particularly in relatively small combustors (10) with low fuel flow rates, a fuel injection system (20) includes an air nozzle (26), a fuel nozzle (28), and an air assist tube (34). The fuel nozzle (28) is disposed in a manner so as to direct fuel through the air nozzle (26) and includes a fuel metering orifice (30) or capillary tube (32) to control fuel flow therethrough. The air assist tube (34) is integrally associated with the fuel nozzle (28) downstream of the fuel metering orifice (30) or capillary tube (32) to accelerate fuel flowing through the fuel nozzle (28).

Abstract: A headwear piece having a crown defining an opening to accept the head of a wearer, with the crown having a top and bottom, front and back, and a peripheral wall having an annular configuration. An opening is provided through the peripheral crown wall to allow passage therethrough of an accumulation of hair on the head of a wearer with the headwear piece in place on the wearer's head.

Abstract: Low pressure resistance in a radiator for use in the cooling system of an internal combustion engine or other heat exchanger may be overcome in a construction including a core (20) defined by a plurality of elongated spaced, parallel tubes (26) with fins (28) extending between adjacent tubes, and header and tank assemblies (22, 24) at opposite ends of the core and attached thereto to be in fluid communication with the tubes (26). Each header and tank assembly (22, 24) includes an elongated housing (40, 104) including an interior passage (34) of circular cross-section and an external, generally planar surface (48, 98).

Abstract: A novel recreational game includes in combination a shield and a dart both including one-half of a structure for retaining the dart on the shield when the dart is thrown towards the shield. The dart is provided with an enlarged front head with an impact surface. The enlarged front head is weighted relative to the rest of the dart so that regardless of how it is thrown, the impact surface is in position to contact the shield when thrown towards the shield.

Abstract: A closure is used for selectively closing an opening of a container, the container including a tubular collar defining an opening and surrounded at the opening by an annular collar flange. An embossment includes a tubular collar retainer having an outer diameter slightly less than an inner diameter of the container collar and defining a through passage. A cap is threaded into the through passage to close the same. An annular retainer flange extends outwardly from an outer wall of the collar retainer and is seated on the collar flange incident to the retainer being inserted in the container collar. The retainer flange is secured to the collar flange by vibration welding so that the cap closes the container opening.

Abstract: The present invention provides an apparatus and method for treating fluid media by exposure to ultraviolet radiation. A fluid flow path from a fluid inlet to a fluid outlet is provided. The fluid flow path is proximate to a source of ultraviolet radiation. Reagents may be added to the system so that the reagent is present in the circulating fluid while the fluid is being exposed to the ultraviolet radiation. Samples of fluid may be withdrawn from the system so that process parameters may be adjusted. In a system in which the fluid flow path is defined by a plurality of interconnected pipes, a connecting means between the pipes includes a port through which reagent may be added or samples withdrawn from the system.

Abstract: An instrument for delivering a pre-tied suture assembly, having a needle carrying a thread with a noose thereon, into a body cavity. The needle has a pointed free end to puncture a tissue and guide movement of the needle and thread therethrough. The instrument has an elongate body with proximal and distal ends. Structure is provided on the body for holding the needle in a transfer position with the pointed free end of the needle shielded to prevent inadvertent puncture of a tissue as the suture assembly is introduced into a body cavity through the instrument. The body has a noose receiving portion to be surrounded by the noose with the needle in its transfer position to prevent the noose from closing upon itself.

Abstract: Difficulties in downsizing annular combustors (20) due to orienting fuel injectors with respect to oxidant blast tubes are avoided in a construction for a combustor (20) including radially spaced annular walls (22, 24) and an interconnecting radial wall (26) defining an annular combustion chamber (32). A plurality of circumferentially spaced tubes (28, 30) extend through the radially outermost annular wall (24) and are directed generally tangentially into the combustion space (32). A plurality of fuel injectors (42) are provided for directing fuel radially inwardly into the space (32) and are circumferentially spaced about the combustion space (32) and located between the tubes (28).

Abstract: A headwear piece having a crown with a surface defining an opening for receiving the head of a wearer, a bladder having first and second layers defining a space therebetween for containing a displaceable fluid, structure for connecting the first and second layers to each other to divide the bladder space into first and second chambers with their being a communication path through the bladder space between the first and second chambers, and structure for connecting the bladder to the crown so that the bladder defines a deformable cushion layer to conform to the head of a wearer.

Abstract: In order to make it possible to align a concrete form while at the same time providing a safe working walkway therealong, a scaffold bracket comprises a generally triangular shaped brace having an attachment leg, a plank supporting leg and a brace leg. The attachment leg is adapted to be secured to an outer surface of the concrete form, the plank supporting leg extends generally transversely of the attachment leg, and the brace leg extends from the attachment leg to the plank supporting leg at an acute angle to both the attachment leg and the plank supporting leg. A first stop is provided on the plank supporting leg at a preselected distance outwardly of the attachment leg to define a waler bracket for accepting a plank of predetermined width for aligning the concrete form. A second stop is provided on the plank supporting leg at a preselected distance outwardly of the first stop to define an outer limit for accepting one or more planks of predetermined width for creating a working walkway.

Abstract: A pump control controls the rate at which liquid is pumped through a tube. The pump has a variable speed shaft with a roller thereon engaged with the tube between the tube inlet the tube outlet for pumping liquid from a supply toward the tube outlet when the pump shaft operates. A first sensor senses liquid at a first location in the tube and a second sensor senses liquid at a second location in the tube between the first location and the tube outlet. A vibratory beam is coupled with the tube between the first location and the second location. An electric circuit transfers energy to a magnet on the beam and induces a natural response in the beam and the tube.

Abstract: A motorized operator drive is used with a window having a fixed frame and a movable sash, and a manually driven window operator mounted to the frame. The window operator includes an operator shaft rotatable to drive a linkage mechanism fastened to the sash to selectively move the sash relative to the frame to open or close the window. The drive comprises a housing having a motor end and an opposite nose end. A motor is mounted in the housing at the motor end and has an output shaft. A gear set is mounted in the housing including an input gear driven by the motor shaft and an output gear at the nose end. An adaptor is operatively engaged with both the output gear and the operator shaft to rotate the operator shaft in response to energization of the motor. A bracket is fixedly mounted to the window frame. A rubber grommet resiliently mounts a stud at the housing motor end to the bracket to provide isolation between the drive and the window.

Abstract: Surge protection is achieved in a turbine engine intended to provide varying quantities of bleed air and having two compressor stages (48, 36) by providing the inlet (56) of the first stage (48) with variable inlet guide vanes (58, 60). The first stage compressor (48) is a high specific speed, single stage centrifugal compressor whose stable operating characteristics are highly sensitive to inlet guide vane geometry, thereby allowing variations in such geometry to be employed to prevent compressor surge.