Abstract: A computer key includes a socket member which confines a receiving space therein and which has a top wall that is provided with a through hole, a resilient biasing member which is disposed inside the receiving space of the socket member, and a support member which has an upright tubular portion and a flange portion that projects radially outward from an intermediate part of the tubular portion and that is in sliding contact with an inner wall surface of the socket member. The support member is provided inside the receiving space of the socket member such that the tubular portion extends through the through hole of the socket member. The tubular portion has a bottom end which rests on top of the biasing member. The biasing member urges the support member upward to a normal unpressed key condition. A push button is secured on top of the support member.

Abstract: This invention provides for a modified mechanism for an adjusting valve coupled to a hydraulic cylinder of a stepper exercise type machine. In particular, there is provided a rotational joint mounted on opposing ends of a valve with a flexible duct located between the opposing joints. A ball roller contacts the flexible duct within the valve responsive to a rotation of a pressure adjusting rod. The rotational joints on opposing ends of the valve may be mounted directly to the oil guide holes of respective hydraulic cylinders or positionally fitted to an extension duct. In this manner, the distance between the hydraulic cylinders may be adjusted by the manufacturer or user and through use of the flexible duct allows the hydraulic cylinders to alternately provide rotative displacement.

Abstract: A laser marker which includes a casing having a battery chamber covered by a lid, a level bearing plate fastened to the casing at the bottom, a level mounted on the level bearing plate above the casing, adjustment rack pivotably fastened to the casing by two spring-supported locating plates and two axle caps to hold a light concentrator, a rotary socket covered by a lens cover to hold a lens in line with the light concentrator, whereby the adjustment rack is turned on the casing and retained in the desired angle by the locating plates, and the rotary socket is turned on the adjustment rack to let the light of the light concentrator be emitted through the lens and formed into a light spot or a line of light projected on an object.

Abstract: A contact type indirect conduction, vibrating type microphone comprised of a body having a vibration damper on the inside, a fastening device connected to the body for fastening around the neck or the head, the vibration damper having a top recess, a peripheral flange, and a plurality of projecting rods raised from a bottom thereof, a capacitive microphone disposed within the top recess of the vibration damper, a sponge covered on the vibration damper over, and a top cover with a diaphragm covered over the sponge and adhered thereto by a double-sided adhesive tape.

Abstract: A fan blade for a ceiling fan is formed as an elongated laminated plate body which includes several layers of thin wooden plates that are bonded together. The laminated plate body has a top face which is formed with projecting strips and a bottom face which is formed with recessed strips that correspond to the projecting strips.

Abstract: A real image/red ray pulse and beep type amblyopia curing device is designed to take into account the "Substitutive Suppressed Competition" theory and includes a main frame, a red ray projector, a real image projector, and an electronic circuit composed of a power supply circuit, a speaker circuit, a real image/red ray projector circuit, an oscillation circuit, a red lamp connected to the oscillation circuit, a real image lamp connected to the power supply, and a real image/red ray selector switch, in which the real image lamp is installed at the bottom of the real image projector, one or more lenses are installed at the front side of the real image projector to provide parallel rays for providing a steady real image, a non-transparent dot of preferably 3 to 8 mm in diameter is made at the center of the front surface of the lens or lenses, and the red ray lamp is installed within the red ray projector.

Abstract: The main feature of this invention is a water filter, made up of a top cover, multiple layers of filtration containers (with net board at the bottom of each container) piled up unit by unit, an axle double-deck sleeve (with vents made on edges of the sleeve linking to one of the middle filtration containers) set in the middle to link all of the filtration containers and a pedestal, installed under all the other units, that has a control valve with five square vents to allow the control the direction of water current, to go from the water inlet to internal sleeve and top cover, spread out and flow down from all layers of filtration containers, and the exhausted from the water outlet, after accumulation in the pedestal, to perform a direct filtration.

Abstract: A mold including a pair of bodies engageable with each other and each including an annular recess, an annular groove and an annular depression, a ring being engaged in the annular recess and the annular groove respectively, and one or more rings corresponding to the tread portion of the tire being engaged in the annular depression of each of the bodies, a mold cavity for forming the tire being formed in the bodies and the rings, the rings engaged in the annular depressions being arranged in parallel with each other so that the rings can be stably and properly retained in place.

Abstract: Plastic air-filled balls comprising three identical layer pieces of plastic connected together. In the middle layer, a thru-hold is provided to balance air pressure and on either one of the other layers an air valve and plug are disposed to confine air in said ball.

Abstract: An improved structure of lateral driving device for car, particularly related to a simple hydraulic loop and structural element to achieve the purpose of laterally driving the car through a remote control device to control the operating sequence thereof and the power source of hydraulic pump is the engine torque of car at neutral so that the car can park in a limited space to fully utilize the parking space and to lessen the driver's trouble when parking and this device is in favor of replacing the wheel or repairing the car when the vehicle body is lifted from the ground.

Abstract: The present invention pertains to an improved method for rapidly forming a decorative container for use as a covering for a similarly shaped object, which method comprises:(a) providing a thin sheet of metallized thermoplastic heat shrinkage polymer material;(b) optionally imprinting a design or other matter upon the sheet of polymer;(c) optionally cutting said sheet to the dimensions approximating the dimensions of the base and side walls of said object;(d) placing the sheet over a heated form having a temperature of between about 80.degree. and 110.degree. C.(e) placing a complementary heated form also having a temperature of between about 80.degree. and 110.degree. C.(f) fitting the heated forms of substep (d) and (e) together having the thermoplastic sheet therebetween;(g) maintaining the temperature of between about 80.degree. and 100.degree. C.

Abstract: An improved stopper structure for a storage battery container according to the present invention is basically defined as a unit including a plurality of hollow stopper supports which comprise threaded support, a spongy rubber, and a rubber pad within each hollow stopper support. Each stopper support has a cylindrical shape with a hollow center to accomodate the abovementioned elements, respectively. The gas that evolves during battery operation is blocked by a stopper, additionally, the water vapor has no way to escape, therefore, the amount of battery fluid loss is reduced. At a time that the evolved gas within the hollow stopper support possesses enough pressure, the rubber pad will be forced to curve upwardly. As a result, the gas may be evolved along a slot provided across the bottom surface of a trough carrying the stopper supports.

Abstract: A fuse protects a decorative string set of series-connected miniature incandescent lamps from current overload. The fuse comprises a fuse body insertable into a compartment of a fuse socket wherein electrical contacts are located. A fuse wire which is supported on the body includes a central wire portion mounted in a bore of the body, a pair of intermediate wire portions extending through passageways formed in the body, and a pair of exposed end wire portions bent rearwardly to engage the outer surface of the body. A keying stud and recess are respectively formed on the socket and body to reliably establish an electro-mechanical connection between the exposed end wire portions and the contacts upon insertion of the body into the socket. A fuse plug is inserted into the bore to thereby enclose the central wire portion.

Abstract: 1,1' dialkyl -4,4'-bipyridylium dihalide is prepared by heating 4,4'-bipyridyl with an .alpha.-halogen substituted organic acid of formula X R.sub.1 COOH where X is Cl or Br, R is C.sub.1-3, preferably monochloroacetic acid alkyl group in the presence of water until the pH is below 4.0.