Abstract: A snow scraper includes transparent main body with a hand grip portion and a blade formed on one end of the hand grip portion. The blade has a front portion which is provided with an inclined shoveling edge and a plurality of claws. The snow scraper further has a pressure indicating unit, a tire tread measuring unit and a light bulb unit and a magnifying glass.

Abstract: The pressure gauge of a tire pressure indicator includes a casing which has a hollow adaptor to be attached to the pneumatic tire, an air inlet and a finger piece for opening an inflating valve of the tire. A diaphragm is disposed inside the casing adjacent to the air inlet and is movable, in response to an inlet pressure entering through the air inlet, between a first position in which the inlet pressure is below a predetermined low pressure limit and a second position in which the inlet pressure is above a predetermined high pressure limit. A spring-loaded push rod is movably mounted inside the casing and is moved by the diaphragm. A signal producing unit is provided inside the casing and has first and second switch devices which are controlled by the movement of the push rod. The first switch device activates the signal producing unit when the diaphragm is in the first position. The second switch device activates the signal producing unit when the diaphragm is in the second position.

Abstract: A tire pressure indicator includes an indicator main body having a first end adapted to be connected to an inflating valve member of a tire and a second end which provides a tire pressure reading. A light device has a rotatable support rotatably mounted on an appropriate location of the indicator main body, a light emitting device provided on the rotatable support, and a switch activated control circuit similarly provided on the rotatable support so as to control the operation of the light emitting device. The light device facilitates the connection of the tire pressure indicator to the inflating valve member of a tire and the viewing of the tire pressure reading under poor lighting conditions.

Abstract: A gas pressure gage connected to a pressure tank includes a solid stem body which has a gas channel extending from the first end to the second end thereof. The solid stem body further includes a cavity which communicates the gas channel with the exterior of the gage. A spring-biased piston rod disposed in the cavity, provided with a sealing member, seals the gas channel unless the gas pressure in the gas channel exceeds the force of the spring member, or the piston rod is operated manually.

Abstract: A flashlight has an elongated barrel and two light bulbs respectively disposed on two ends of the barrel. A tubular cap is mounted on one end of the barrel and has a clamping member provided therein. A translucent acrylic indicator rod has one end portion extending into an open end of the tubular cap and is retained therein by the clamping member. A switch unit is operated so as to electrically connect a selected one of the light bulbs to a power source provided inside the barrel. The flashlight can be effectively used as a lighting aid or as a signaling tool.

Abstract: A pressure gauge has a device which can be pre-arranged to indicate the required pressure in a connected tire, and releases the excessive pressure if there should by any.

Abstract: A pressure gauge for measuring the pressure of a tire, which can also measure the depth of grooves in the tread of a tire includes a housing, which has a face with indicating scales and a side with an opening, the side being perpendicularly connected to the face of the same. It also has tube member with two open ends, the first open end extending outward from the housing and the second open end extending inward into the same. An elongated rod with two ends, the first end being retractably disposed in the tube member and the second end protruding from the opening in the housing and a neck portion is integrally formed and connected with the opening in the housing. An outer member is fitted over the neck portion.

Abstract: A pressure gauge for measuring the pressure of a tire includes a hollow cylinder tube having two open ends and two flange portions one at each side of the ends; a spout portion having a passage within being connected to the cylinder tube; a pair of sealing plates having holes therethrough, being disposed on the cylinder tube; an elongated rod having two opposite ends and two tip portions extending axially from the ends. Each of the ends has an outer rim and the tip portion respectively protruding through the holes in the sealing plates. The elongated rod is movably fitted between the sealing plates and inside the cylinder tube. A pair of pressing members is disposed at the open ends of the cylinder tube to form seals. A sensing member is connected to the spout portion.

Abstract: A tire pressure indicator includes: a hollow cylindrical body with a closed side and an open side; a light bulb with a threaded negative portion and a positive contact detachably mounted at the closed side of the hollow cylindrical body; a transparent cover positioned at the closed side over the light bulb; a first conductor, together with a piston container, connected to the threaded negative portion of the light bulb; a sleeve member movably disposed around the piston container in the hollow cylindrical body; a piston unit composed of a mercury cell, a pressure spring and a sliding member movably disposed in the piston container; a pressure sensor which is a combination of a flexible film member, a second conductor and an air-channel member fixed on the closed side of the sleeve member under the piston unit; and a supporting base with an air chamber screw-connected to the open side of the hollow cylindrical body; whereby, when the air pressure indicator is connected to the tire valve of an associated tire,

Abstract: A tire pressure indicator includes a hollow cylindrical casing mounted to an inflating valve of a tire, a transparent cap member, a piston member and a biasing spring for the piston member. The piston member is movably confined inside the hollow cylindrical casing and moves in response to the pressure in the tire. The piston member has a vertical pole which is divided into several parts, each part having a color representing a tire pressure state. The tire pressure is indicated by the color(s) that can be seen through the cap member. A hole is provided along the wall of the hollow cylindrical casing and serves as an outlet for excess air in the tire. The hole is blocked by the piston member when air pressure in the tire is deemed acceptable.

Abstract: A safety device includes a compacted body accommodating a pressure gauge for determining the internal pressure of a tire and a unit for determining the degree of wear caused to the tread of a tire, which includes a slide ruler to measure the depth of the indentations in the tread of the tire. The slide ruler is received in a slide groove provided in the body of the device and associated with graduation marks which show the depth of the indent in the tire tread when the slide ruler extends thereinto.

Abstract: A pressure gauge of the type having a dial with a pointer includes a tubular pressure chamber body receiving a piston with a piston rod whose one end extending out of the pressure chamber body is provided with an adjustment screw thread. An L-shaped rod member extends between the pressure chamber body and a graduated plate of the dial and has a toothed end engaging with a transmitting gear which is connected to the pointer. The angled portion of the L-shaped rod member is provided with an adjustment screw hole to receive and engage with the outer threaded end of the piston rod. The pressure gauge has a reduced size and facilitates the adjustment of the pointer in case of fatigue of the urging spring.

Abstract: A pen-like pressure gauge has an elongated outer casing with a chuck, having a first portion accommodating a transparent inner casing and a second portion accommodating a piston member which is in sliding and sealing contact with the inner surface of the metallic outer casing and which is connected to a scale member extending into the inner casing. The graduation marks of the scale member can be viewed from a window of the outer casing through the transparent inner casing.

Abstract: A tire pressure indicator includes: a hollow cylindrical body with a closed side and an open side; a light bulb with a threaded negative portion and a positive contact detachably mounted at the closed side of the hollow cylindrical body; a transparent cover positioned at the closed side over the light bulb; a first conductor, together with a piston container, connected to the threaded negative portion of the light bulb; a sleeve member movably disposed around the piston container in the hollow cylindrical body; a piston unit composed of a mercury cell, a pressure spring and a sliding member movably disposed in the piston container; a pressure sensor which is a combination of a flexible film member, a second conductor and an air-channel member fixed on the closed side of the sleeve member under the piston unit; and a supporting base with an air chamber screw-connected to the open side of the hollow cylindrical body; whereby, when the air pressure indicator is connected to the tire valve of an associated tire,

Abstract: This invention discloses an improved flashlight assembly which comprises a lighting device, an upper housing, a lower housing, a packing member and a cap. The lighting device is disposed on the top of the upper housing for offering a beam of light when electric connection is achieved. A through hole and a pair of threads are formed respectively on the upper housing and the lower housing so that they may be engage with each other. Likewise, the packing member is also provided with a though hole and a pair of openings for attachment on the hollow joint member. A non-conductive sheet can be inserted into the flashlight body to break the electrical connection of the batteries when all through holes have been aligned in an overlayed manner due to the assembly of both the upper housing and the lower housing by the engagement of two pairs of threads.

Abstract: A pressure gauge includes an air cylinder which is accommodated within the cylindrical chamber of a body, and an indicating needle which can rotate in a plane generally parallel to the cylinder. A U-shaped piston rod has a first arm extending into the cylinder, and a second arm having a rack surface generally parallel to the first arm. A pinion is secured to a rotating shaft and meshes with the rack so as to rotate the rotating shaft. The indicating needle is secured to the rotating shaft. The cylinder has an axially extending slot formed in the inner surface thereof in communication with the straight intake passage of the pressure gauge and a sealed space defined in the chamber by the piston of the cylinder. The intake passage is generally parallel to the rotating shaft so as to communicate with a horizontal tube which is to be measured. An adjustable member is externally threaded so as to engage with the internally threaded lower end of the cylinder.

Abstract: A pressure gauge with a movable interior scale is provided including an elongated hollow body having a closed chamber, an intake passage communicating with the closed chamber, and an air inlet communicating exteriorly of the pressure gauge. A charge port is provided between the closed chamber and the intake passage and a discharge port is provided communicating with the closed chamber and exteriorly of the pressure gauge. In addition, a spring-biased charge valve is disposed at the charge port and is normally biased to close the charge port. At the same time, the spring-biased charge valve is driven to open the charge port when pressurized air enters the intake passage. A sliding member is mounted in the closed chamber in sealing engagement with the chamber, and slidable in the chamber upon entry of pressurized air. A pressure indicating scale is carried by the sliding member and a display hole is formed in the body and aligned with the scale so that the scale is visible through the display hole.

Abstract: This invention discloses an improved pressure gauge adaptable to simultaneously indicate multi-linear scale of the tire pressure. This pressure gauge has a tubular member having a first and a second end, a tire valve engaging head attached to the first end of the tubular member, and a compression spring having a first and a second end. A piston provided movably at the first end of the compression spring and a frame. The frame has a substantially U-shaped configuration with a transverse portion interconnecting two opposed leg portions, each of the leg portions having an inner and an outer side wall. The inner side walls of the leg portion are each provided with two guide slots formed longitudinally therein which extend in parallel to each other.

Abstract: An automatically-lighting flashlight assembly includes a flashlight and a holder. The flashlight includes a housing receiving an upper and a lower batteries in series connection and a light bulb arrangement, and two springs which bias the batteries normally to light the light bulb. The housing further includes a through hole at a location where the cathode of the upper battery meets the anode of the lower battery. The holder, which is coated with phosphorescent material and which is mountable, includes means for gripping the flashlight against the holder, and a separating rod which can extend into the through hole in the housing and between the batteries, breaking the electrical connection and extinguishing the light bulb. By this arrangement, the flashlight lights automatically when removed from the holder and is extinguished automatically when replaced in the holder.

Abstract: A compact pressure gauge includes an outer housing, a rotating shaft journalled on the outer housing, and a tubular member fixed on the outer housing and extending through the outer housing. A pinion and an indicator are secured to the rotating shaft. A movable seal member is disposed sealingly within the tubular member for being forced by air pressure in an article to be measured and is biased by a compression spring, which has intimately coiled turns for being sleeved on a stepped spring seat, to move outwardly. A U-shaped rack member has parallel first and second arms. The first arm extends into the tubular member and is connected to the seal member for being impelled by the seal member. The second arm is provided with a rack meshing with the pinion. In use, the seal member will be pressed to move the rack member and in turn will rotate the rotating shaft by interaction between the pinion and the rack.