Abstract: A portable memory storage device with a miniaturized memory storage assembly package with electrical contacts that further includes a casing, the casing holding the memory package and having a first end portion, a cover, the cover being rotatable about the first end portion of the casing, and at least a plug for engaging the cover and the casing and being fitted about the first end portion of the casing. When the cover is rotated about the first end portion of the casing to selectively cover or expose the electrical contacts, the plug rotates about the first end portion with the cover. Further, the first end portion includes a groove on an interior side surface, and when the cover is at a first locked state, a projection of the plug abuts against a side of the groove. The electrical contacts can be formed in accordance with the USB Specification.

Abstract: A portable memory storage device with a miniaturized memory storage assembly package with electrical contacts that further includes a casing, the casing holding the memory package and having a first end portion, a cover, the cover being rotatable about the first end portion of the casing, and at least a plug for engaging the cover and the casing and being fitted about the first end portion of the casing. When the cover is rotated about the first end portion of the casing to selectively cover or expose the electrical contacts, the plug rotates about the first end portion with the cover. Further, the first end portion includes a groove on an interior side surface, and when the cover is at a first locked state, a projection of the plug abuts against a side of the groove. The electrical contacts can be formed in accordance with the USB Specification.

Abstract: A variable venturi-type carburetor has a base defining a central channel having an upper inlet end and a lower outlet end. A variable venturi assembly is situated in the middle of the central channel. The variable venturi assembly has a support, a conical body, and a resilient member. The support is fixed in the base, the bottom of the conical body is movably connected to the support, the surface of the conical body and the base define a venturi throat and the resilient member is situated between the support and the conical body. A fuel reservoir is provided in the base. A path structure connects the fuel reservoir and the venturi throat. A cam control mechanism is also part of the venturi assembly.

Abstract: The present invention provides an automatic adjustment carburetor capable of offering fuel economy and low pollution, wherein an automatic adjustment air-blocking device and a gas enrichment device are appended in the intake passage of the carburetor. The air-blocking device is disposed in the intake passage in front of a throttle having a fuel needle. The middle section of the intake passage forms a room having a neck. A venturi tubular front part of expanding arc shape was formed extendedly forward from the neck in the intake passage. A rear part of pot belly shape was formed extendedly backward from the neck in the intake passage. An annular groove at the outer end of the intake passage joins an intake annular seat. A positioning shaft has a plurality of positioning grooves installed near two ends thereof. One positioning groove on each end of the positioning shaft joins a locking spring.