Abstract: A dipstick assembly includes a lock system. A cap has a blade, cable or extension for measuring fluid levels. The locking system has the ability to limit the assembly of a locking dipstick to one radial position. The cap has an engagement end. A cup has a receiving end. The engagement end of the cap is removably sealably disposable in the receiving end of the cup. The lock system may include a pair of slots on the cap and a pair of lugs on the cup, and a tab on the cap and a shoulder/recess on the cup that cooperate to limit the system to one way assembly. The tab and recess also provide a visible lock indicator to confirm that the slots and lugs, which are not visible, are fully engaged and locked.

Abstract: A dipstick assembly includes a lock system. A cap has a blade, cable or extension for measuring fluid levels. The locking system has the ability to limit the assembly of a locking dipstick to one radial position. The cap has an engagement end. A cup has a receiving end. The engagement end of the cap is removably sealably disposable in the receiving end of the cup. The lock system may include a pair of slots on the cap and a pair of lugs on the cup, and a tab on the cap and a shoulder/recess on the cup that cooperate to limit the system to one way assembly. The tab and recess also provide a visible lock indicator to confirm that the slots and lugs, which are not visible, are fully engaged and locked.

Abstract: A locking cap for closing the oil fill opening of the crank case in a motorcycle engine. The cap has only three major members. A first member has an upper grip portion and a lower portion with openings located in the lower portion for holding ball bearings. A second member is located within the first member and is rotatably coupled to the first member. A lock mechanism attached to the first and second members rotates the second member relative to the first member as the lock mechanism is operated to urge the ball bearings to move through the openings in the first member as the second member is rotated in a first direction relative to the first member. A third member attached to the second member provides support for a dip stick.

Abstract: A stopper component has upper and lower ends. The stopper component is removably positioned in a cylindrical opening. A shaft/dipstick is positioned within the stopper component. The shaft/dipstick has an upper end adjacent to the upper end of the stopper component. The shaft/dipstick has a lower end. The lower end extends beneath the lower end of the stopper component. A lock has an interior end coupled to the upper end of the shaft/dipstick. In this manner positioning the lock in a first orientation will lock the stopper component in a cylindrical opening. Also in this manner positioning the lock in a second orientation will unlock the stopper component to facilitate removal of the stopper component from a cylindrical opening.

Abstract: A flexible locking dipstick module useful with a motor vehicle including an oil reservoir. A dipstick is disposed within a housing which has one end thereof affixed to the oil reservoir and extends therefrom to a location within the engine compartment of a motor vehicle. The end of the module disposed within the engine compartment includes a quick disconnect locking coupling providing for ready installation and removal of the dipstick. The coupling further provides protection against blow out of the dipstick in the event of inordinate build up of pressure within the oil reservoir. Further, one portion of the outboard coupling may be employed as a liquid-tight closure for a dipstick entry opening in the oil reservoir during removal and/or storage of the engine.

Abstract: A fluid level measuring device, also referred to as a dipstick, for measuring the fluid level in a fluid reservoir or tank, such as an oil pan or transmission reservoir in an internal combustion engine. The fluid level measuring device includes a stationary tube onto which lugs can be directly attached. The dipstick assembly includes a fluid level indicator measuring blade attached to an elongated shaft that is molded into a plastic handle assembly. The plastic handle assembly includes a bayonet type locking mechanism for locking the handle to the stationary tube assembly. A compressible seal forms a pressurized seal between the stationary tube assembly and the handle.

Abstract: A fluid level measuring device, also referred to as a dipstick, for measuring the fluid level in a fluid reservoir or tank, such as an oil pan or transmission reservoir in an internal combustion engine. The fluid level measuring device includes a stationary tube onto which lugs can be directly attached. The dipstick assembly includes a fluid level indicator measuring blade attached to an elongated shaft that is molded into a plastic handle assembly. The plastic handle assembly includes a bayonet type locking mechanism for locking the handle to the stationary tube assembly. A compressible seal forms a pressurized seal between the stationary tube assembly and the handle.

Abstract: An engine is described having a hole for a dipstick which is closed by a cap from which the dipstick depends. The engine body is formed with an overhanging lip adjacent the mouth of the hole, and the cap comprises a spigot rotatably received in the mouth of the hole and a flange extending radially outwards from the spigot to cover the mouth of the hole. The flange is non-circular so that by rotation of the cap relative to the hole, a radially projecting portion of the edge of the flange may be selectively engaged beneath the overhanging lip to prevent axial displacement of the cap and the dipstick relative to the engine body.

Abstract: A connection system for a fluid level measuring system is disclosed. The disclosed connection system comprises an outer member (also known as a boss), at least one retaining means or clip, and a tube that has been previously shaped and in receptive within the outer member. The end of the tube not received within the outer member is associated with a cap or handle for inserting and removing a fluid level indicator blade (or dipstick).

Abstract: A cap assembly, having a fixedly attached dipstick, for a fill and/or guide tube is provided. The cap provides a fluid tight seal on the end of the tube, thereby preventing fluid leakage. The cap can be used on both linear and non-linear tubes because it requires about 45.degree. or less rotation to lock. The cap assembly comprises a housing for attachment on the open end of the tube. The housing is equipped with protruding lugs that interlock with grooves on the cap to form a fluid tight seal.

Abstract: An all plastic cap for an automotive power steering reservoir includes a cap portion and a central integrally molded stem portion, the latter having oppositely extending integrally molded stiffly resilient locking ears with an elastomeric gasket disposed within the cap such that the ears may engage a cam lip within the reservoir neck as the cap is turned with the ears drawing the cap into the neck and squeezing the gasket to effect the seal of the neck opening.

Abstract: There is disclosed a short and straight oil level gauge adapted for use with an automative automatic transmission. The gauge is inserted in an oil filler tube which is also short and straight. The tube has a flexible clamping member. The gauge has a rodlike body having two ribs, a cover at the upper end of the rodlike body, a plug portion located under the cover, a tool-connecting portion located above the cover, and insertion guide surfaces formed on the body and connecting the plug portion with the body. The tool-connecting portion is shaped like a socket, and a conventional socket wrench can be inserted into this tool-connecting portion. The insertion guide surfaces are formed by two ribs or fins radially extending from the rodlike body in mutually perpendicular directions. The guide surfaces cooperate with the inner surface of the tube to assure that the clamping member of the tube engages the cover.

Abstract: A dipstick is suspended from a pivoting mount in the center of a cap. When performing a fluid level check, this cap is loosened from a wiper plug, which remains stationary in its tube housing as the dipstick is withdrawn through it. A series of internal wipers clean the dipstick as it passes through the wiper plug. Wiped fluids return to the fluid reservoir via undercuts in the individual wiper blades. The clean dipstick is then reinserted into the wiper plug to full depth, and the cap retightened on the wiper plug. The cap, dipstick, and wiper plug are then withdrawn together by pulling upwards from their tube housing. The actual fluid level in the reservoir will now show on the dipstick.