| Patent Number |
Title Of Patent |
Date Issued |
| RE29701 |
Timed buzzer |
July 11, 1978 |
| A timed buzzer assembly having a rectangular base with four terminals insert molded in the base and a generally cup-shaped cover member over the base providing the housing. All of the terminals project through the base member with the armature of the buzzer supported on one terminal and |
| D296300 |
Dual wheel caster |
June 21, 1988 |
|
| D295599 |
Dual mode grease gun |
May 10, 1988 |
|
| D271943 |
Combined packaging and display container |
December 27, 1983 |
|
| D249479 |
Timing meter |
September 19, 1978 |
|
| D246850 |
Rim drive for a bicycle speedometer |
January 3, 1978 |
|
| D245402 |
Speedometer |
August 16, 1977 |
|
| D245238 |
Speedometer |
August 2, 1977 |
|
| D244989 |
Dual wheel caster |
July 12, 1977 |
|
| D244763 |
Speedometer |
June 21, 1977 |
|
| D244364 |
Timing light |
May 17, 1977 |
|
| 4947150 |
Pressure sender |
August 7, 1990 |
| A pressure sender is provided with a variable electrical resistance corresponding to a sensed pressure, to be placed in series with a voltage source and a pressure gauge. The pressure sender is diaphragm-actuated, which diaphragm controls the positioning of an electrical contact against |
| 4941136 |
Programmable hour meter for recording elapsed operation time |
July 10, 1990 |
| A completely electronic programmable hour meter is disclosed. The hour meter accumulates and displays run time of the device being measured. The hour meter can also count pulses. The meter can be preprogrammed with a maintenance timer limit which is compared to the accumulated run time. |
| 4908806 |
Directional spring for AC synchronous motor |
March 13, 1990 |
| A directional starting spring which ensures that an AC synchronous motor is rotating in the proper direction is disclosed. The AC synchronous motor includes a circular magnet rotating in "synch" with the frequency of the alternating current. The magnet rotates a worm gear attached to the |
| 4870891 |
Pneumatically controlled air motor |
October 3, 1989 |
| A double acting piston and cylinder air motor with pneumatically actuated pilot valves for shifting a directional control valve, where the pilot valves are controlled by pilot ports in the cylinder as they are uncovered by the piston. |
| 4807090 |
Instrument illumination system |
February 21, 1989 |
| An instrument with an illumination ring that edge-lights an opaque dial face with increased light flow by augmenting the conductivity of both the light receiving portion of the ring and a bevel for deflecting light laterally across the face. The increased light flow is accomplished by an |
| 4793022 |
Tread protector for dual wheel caster |
December 27, 1988 |
| A one-piece plastic wheel protector for dual wheel casters that snaps over and locks on the wheels and is easily removed by a breakaway pull tab. |
| 4768300 |
Illuminated information display |
September 6, 1988 |
| An illuminated information display including a standard planar active display, such as an LCD display, covered by a rigid transparent plate with fixed graphics on its rear surface illuminated by light transmitted laterally through the plate. |
| 4758784 |
Air core gauge with zero pointer return related application |
July 19, 1988 |
| An air core gauge having orthogonally related coils that react with a rotor magnet to angularly position an indicating pointer, suitable for use as either a pressure,temperature, or fuel gauge. All-attitude pointer zero return is achieved with a stationary magnet, and voltage regulation |
| 4756230 |
Sound attenuator for pneumatic motors |
July 12, 1988 |
| A reciprocating piston and cylinder pneumatic motor with a sound-reducing system that diffuses exhausting air by directing it across the curved outer surface of the cylinder. |
| 4732361 |
High pressure lubricant control valve with self-cleaning restrictor |
March 22, 1988 |
| A self-cleaning restrictor assembly for a high pressure lubricant valve that minimizes the effect of accidental discharge by reducing no load outlet flow. The restrictor assembly has a pair of restrictors that are alternately opened and closed to provide a constant restricted flow area |
| 4732221 |
Pneumatic chipping hammer and method of manufacture |
March 22, 1988 |
| A pneumatic power tool that includes fluid conveying passageways formed by casting grooves in the tool exterior and then molding an elastomeric material over the grooves to enclose the passageways. |
| 4732034 |
Tachometer kit with alternator pick up |
March 22, 1988 |
| A vehicle tachometer kit including a pick up coil that is adapted to be mounted on the outside of the vehicle's alternator to sense its rotating field without any disassembly. An induced signal in the coil from alternator field leakage provides the normal input to a user calibrated r |
| 4728039 |
Paint spray gun nozzle assembly |
March 1, 1988 |
| A paint spray gun having a plastic nozzle body with a separate plastic nozzle tip universally mounted on the nozzle body to align the tip in a central orifice in a plastic air cap. |
| 4707880 |
Swivel caster assembly and method of making |
November 24, 1987 |
| A heavy-duty caster assembly with a pintle and swivel plate mounted on top of a wheel carrying horn that minimizes pintle bending and breaking with the addition of a powdered metal washer around the pintle locked on top of the swivel plate. |
| 4700170 |
Condition sensing rheostat and method of manufacture |
October 13, 1987 |
| A wound wire rheostat for a fuel level sender or other condition sensor and its method of manufacture, that eliminate wire snapping by heat staking selected portions of the wire into its plastic support board. |
| 4664298 |
Dual mode grease gun |
May 12, 1987 |
| A hand lever operated grease gun that has both high pressure and high volume modes by changing the mechanical advantage of the lever acting on a dispensing piston. A spring biased pivotal connection between the lever and a forwardly mounted supporting link is shiftable between two positi |
| 4658127 |
Pattern tracer with kerf dependent control for improved cornering |
April 14, 1987 |
| An electrically controlled pattern tracer selectively uses stored detected pattern information from a sensor differently depending upon the value of a selected entered kerf entered to control the tracing element to follow a pattern turn. The tracer also distinguishes one type of pattern |
| 4647760 |
Pattern tracer with electronic kerf, calibration and line width compensation |
March 3, 1987 |
| A pattern tracer with circuitry for electronically adjusting the lateral offset of the tracing element for kerf compensation, that produces a control signal based on a temporal relationship between a reference signal and a pattern detection signal associated with a preselected kerf c |
| 4626636 |
Pressure operated switch assembly with external pressure control |
December 2, 1986 |
| A pressure-operated electric switch assembly of the diaphragm type wherein a housing mounted diaphragm actuates a snap action switch adjustable in the housing to vary the switch operating pressure. The pressure setting may be varied externally by the user upon manual rotation of a switch |
| 4605039 |
Runaway protective fuse valve |
August 12, 1986 |
| A runaway valve for an air-driven material pump that shuts off air flow to the pump when air flow rate exceeds a predetermined setting to prevent pump damage, wherein the valve includes a flow-responsive poppet valve member and an axially movable sleeve finely adjustable about a first |
| 4578574 |
Pattern tracer with variable effective forward offset and method |
March 25, 1986 |
| A pattern tracer and method of tracing in which the movement of a racing element along a pattern is controlled in accordance with an effective forward offset which is selectively less than the actual forward offset to optimize the tracing for speeds less than the maximum tracer speed. Th |
| 4560365 |
Vehicle speed sensor |
December 24, 1985 |
| A speed sensor and cable assembly that connects to an opening in automobile transmission housings and includes a one-piece plastic molded ferrule and gear bearing for supporting the cable and a speed sensor gear in the housing opening. This ferrule has a plurality of spaced integral rigi |
| 4560095 |
Lever operated lubricator |
December 24, 1985 |
| A practically all plastic lever operated grease gun with a flexible plastic link integrally molded with a plastic head, pivotally connecting the lever to the head. A lever reciprocated dispensing piston, slidably mounted in a transverse bore in the head, actually forms the bore in the he |
| 4554704 |
Corrosion resistant caster |
November 26, 1985 |
| A heavy-duty caster assembly for a corrosive environment having a U-shaped metallic wheel supporting horn with a metal swivel plate rotatably mounted on the horn by a kingpin wherein both the swivel plate and the horn are coated with a permanently bonded fluorocarbon coating. The facing |
| 4551598 |
Illuminated membrane switch |
November 5, 1985 |
| An illuminated membrane switch assembly lighted by internal bulb units. A membrane switch sub-assembly is finger touch actuated by a small translucent plastic button with a graphic overlay on its forward surface and a light-diffusing textured rear surface. A clear plastic backplate is |
| 4548589 |
Arc tube and plastic reflector assembly method |
October 22, 1985 |
| A halogen bulb lamp assembly manufactured by mounting a previously aligned halogen bulb unit in a one-piece molded plastic rectangular reflector with a mirrorized paraboloidal inner surface. The halogen bulb unit has a pair of spaced connector pins that are coated with an epoxy adhesive |
| 4544425 |
Method for attaching wheels to dual wheel casters, including ultrasonic welding |
October 1, 1985 |
| A method and apparatus for attaching the wheels of a dual wheel caster to its axle with annular plastic bushings ultrasonically welded to the wheels that have three integral curved spring fingers that snap into annular recesses in the axle as the wheels are pushed onto the axle. |
| 4520432 |
Rectangular halogen lamp unit and method of manufacture |
May 28, 1985 |
| A rectangular lamp unit and an integral bracket, replaceable as a unit upon bulb burn-out, including a one-piece plastic reflector closed by a rectangular lens with an integral peripheral mounting flange on the reflector adjacent the lens so that the unit can be mounted substantially |
| 4509106 |
Self-housed rectangular lamp assembly with a replaceable halogen bulb lamp unit |
April 2, 1985 |
| A self-housed rectangular lamp assembly with a replaceable halogen bulb lamp unit. A cup-shaped housing, having a pivotal mounting bracket, receives a lamp unit that has a pair of integral threaded bosses on its rear surface receiving fasteners extending through the rear of the housing |
| 4498124 |
Dual halogen lamp assembly |
February 5, 1985 |
| A dual halogen bulb rectangular lamp assembly with a one-piece plastic reflector having two adjacent paraboloidal mirrorized inner surfaces. A halogen bulb unit is mounted in each of the mirrorized surfaces and they are electrically connected in series for simultaneous bulb energization. |
| 4496030 |
Automatic lubrication assembly |
January 29, 1985 |
| An automatic lubrication assembly that dispenses grease under pressure to machinery which requires frequent lubrication, including a spring biased one-piece rigid plastic molded plunger that has a flexible thin walled sealing lip eliminating the requirement for any seals, slidable in an |
| 4493958 |
Illuminated membrane switch |
January 15, 1985 |
| An illuminated membrane switch assembly lighted by a contained rearwardly positioned bulb unit. A membrane switch is actuated by a small reciprocable transparent plunger with an illuminated graphics bearing overlay on its forward surface. Light is transmitted axially from the rear of |
| 4441378 |
Gearbox drive for a speedometer |
April 10, 1984 |
| A gearbox drive that adapts the drive train ratios of vehicles to standard speedometers, including an input gear, an intermediate gear and an output gear rotatable about axes defining an equilateral triangle, arranged so that upon rotation of the input shaft in either direction, the reac |
| 4414613 |
Rectangular seal beam lamp and support with halogen bulb |
November 8, 1983 |
| A rectangular seal beam lamp unit with a high intensity halogen bulb, particularly adapted for utility vehicles, that is self-supporting without requiring any special mounting fixtures on the vehicle, and includes an entirely plastic reflector having an integral forwardly projecting hood |
| 4401254 |
Vacuum brazing process with improved gettering |
August 30, 1983 |
| A method of vacuum brazing large assemblies in an enclosed evacuated furnace with brazing material containing a gettering agent in the area of the joints to be formed, including sensing the temperature of the assembly to be brazed adjacent the joints on the exterior surface of the assemb |
| 4373398 |
Indicating gauge with pressure relief valve |
February 15, 1983 |
| A vehicular instrument or gauge of the type that has a sealed housing filled with an inert gas and a pressure responsive drive assembly for an indicating element such as a needle pointer. The housing is provided with a pressure relief valve to relieve excessive pressure within the housin |
| 4357651 |
Rectangular seal beam lamp and universal support assembly |
November 2, 1982 |
| A rectangular seal beam lamp and single-point universal support assembly for vehicles that is replaceable as a unit and that has high shock-absorbing characteristics. The lamp includes a rectangular plastic paraboloidal reflector having an integral single polygonal support post that |
| 4355761 |
Pressure sensor and regulator for airless material coating system |
October 26, 1982 |
| An airless paint or material spray system having a pressure sensor and regulator for controlling the pressure of paint flowing from a paint pump to an airless spray gun. The pressure sensor and regulator includes three contiguous flexing diaphragms in a material chamber in the outlet flo |
| 4351084 |
Soft tread caster wheel and method of making same |
September 28, 1982 |
| A soft tread caster that is manufactured by first molding a relatively rigid plastic hub with integral projections about its periphery and thereafter molding a softer plastic tread directly to the hub periphery so that the tread material flows around and under the projections. The pr |
