Abstract: A manufacturing method and structure for a composite material racket frame includes the following steps: (a) Resin impregnation: Impregnate a composite material with resin; (b) Wrapping the core mold with composite material: Use a core mold in the shape of a racket, made of polymethacrylimide (PMI) or expanded polypropylene (EPP) material; then wrap the composite material around the core mold to form a composite material layer. The mutually wrapped composite material layers and core mold together form a semi-finished product; (c) Heating and pressurizing: Place the semi-finished product into a mold with a cavity, and heat the mold to a preset temperature. After heating, the core mold expands due to heat, forming internal pressure within the semi-finished product; (d) Cooling and curing: Stop heating and allow the semi-finished product to cool until it reaches a cured state, and (e) Finished product formation: Remove a finished racket frame from the mold.

Abstract: A method for manufacturing a pickleball racket includes the following steps: (a) impregnating a composite material with resin; (b) wrapping a core mold, made of PolyMethylMethAcrylimide (PMI), with at least one location to form an elastic layer; wrapping the composite material around the elastic layer and the core mold to form a composite material layer, to form a semi-finished product; (c) placing the semi-finished product into a mold and heating the mold to a predetermined temperature to form internal pressure within the semi-finished product; (d) stopping heating and cooling the semi-finished product to solidify it; (e) removing a pickleball racket from the mold. The pickleball racket forms an integral structure in the order of a core mold, an elastomer layer, and a composite material layer. The pickleball racket is light in weight and has strength and rigidity. The striking surfaces of the pickle racket has hitting elasticity, and shock absorption.

Abstract: A system for guiding vehicles is provided. The system includes a first vehicle, a second vehicle, and a host terminal. The first vehicle is configured to move in a first space. The second vehicle is configured to move in a second space. The host terminal includes a computer program product and a processor. In response to the processor executing the computer program product, the host terminal performs an interactive operation with at least one of the first vehicle and the second vehicle. The interactive operation includes receiving first position information of the first vehicle; receiving second position information of the second vehicle; receiving destination information; according to the first position information, the second position information, the destination information, and environmental characteristics of a map, planning a travelling path on the map; and controlling a movement route of the first or second vehicle according to the travelling path.

Abstract: A mobile device protection jacket includes a covering jacket body and a back cover, wherein a front piece is provided on the covering jacket body and a side protection piece is formed on a periphery of the front protection piece in an extending and penetrating manner, so a holding space for holding a mobile device is formed between the front protection piece and side protection piece and embedment catching portions are formed on an outer edge of the side protection piece; and wherein embedment fixing portions are formed on an outer edge of the back cover at positions corresponding to the embedment catching portions on the outer edge of the side protection piece of the covering jacket body, such that the back cover can be jointed and fixed through mutual embedment and catching of the embedment fixing portions and the embedment catching portions of the side protection piece.

Abstract: A mobile device protection jacket includes a covering jacket body and a back cover, wherein a front piece is provided on the covering jacket body and a side protection piece is formed on a periphery of the front protection piece in an extending and penetrating manner, so a holding space for holding a mobile device is formed between the front protection piece and side protection piece and embedment catching portions are formed on an outer edge of the side protection piece; and wherein embedment fixing portions are formed on an outer edge of the back cover at positions corresponding to the embedment catching portions on the outer edge of the side protection piece of the covering jacket body, such that the back cover can be jointed and fixed through mutual embedment and catching of the embedment fixing portions and the embedment catching portions of the side protection piece.

Abstract: A linear light-emitting diode (LED)-based solid-state universal lamp comprising integrated arc and shock prevention switches normally operates with either an electronic ballast or AC mains. When such a universal lamp is installed in or uninstalled from a linear tube lamp fixture, the integrated arc and shock prevention switches can work with an electronic ballast to prevent electric arc from occurring inside the lamp, thus eliminating any possible internal fire hazard while maintaining electric shock free for installers.

Abstract: An impeller vane includes at least one groove on a high pressure or working surface of the impeller vane to increase pump efficiency and reduce pump power requirements. The impeller vane includes a groove or a plurality of grooves formed on the high pressure surface of the vane. The grooves extend from a leading end of the vane to a trailing end of the vane. The grooves define ridges on either side of each groove that extend the length of the groove.

Abstract: An impeller vane includes at least one groove on a high pressure or working surface of the impeller vane to increase pump efficiency and reduce pump power requirements. The impeller vane includes a groove or a plurality of grooves formed on the high pressure surface of the vane. The grooves extend from a leading end of the vane to a trailing end of the vane. The grooves define ridges on either side of each groove that extend the length of the groove.

Abstract: A sun tracking system includes a first, and a second photo sensors, separately mounted on a solar panel on two positions apart from one another and symmetrical with respect to a center of the panel. A first sleeve surrounds the first photosensor; a second sleeve surrounds the second photosensor. Each of the sleeves has an inclined opening with reference to the surface of the panel.

Abstract: A sun tracking system includes a first, and a second photo sensors, separately mounted on a solar panel on two positions apart from one another and symmetrical with respect to a center of the panel. A first sleeve surrounds the first photosensor; a second sleeve surrounds the second photosensor. Each of the sleeves has an inclined opening with reference to the surface of the panel.

Abstract: A golf practice assembly includes a first surface which has three target areas displayed thereon and the target areas are located in a vertical axis passing through a center of the first surface. A ball has a second surface which can be attached with the first surface of the golf practice assembly. The users use different golf clubs to send balls toward the first surface. The lower target area is designed for the lower number of golf club or for shorter distance between the position that the users stand and the first surface.

Abstract: A golf practice assembly includes a target having a first surface which has three target areas displayed thereon and the target areas are located in a vertical axis passing through a center of the first surface. The users use different golf clubs and try to hit the target areas. The lower target area is designed for the lower number of golf club or for shorter distance between the position that the users stand and the first surface. A ball has a second surface which can be attached with the first surface of the golf practice assembly.

Abstract: A method of managing a print job from a computer includes the steps of transmitting print job information to a printer, storing the print job information in a storage device separate from the printer, prompting a user to enter identification information at the computer, which is separate from the printer, and comparing the identification information with information stored in the storage device. The method can also include the steps of validating the identification information, displaying the print job information at the computer, editing the print job information at the computer, updating the storage device with edited print job information, and transmitting to the printer the edited print job information. The method can be implemented using a remote manager residing on a computer connected to the printer via a network. A computer program product, and a graphical user interface for managing a document server print job are also disclosed.

Abstract: A centrifugal pump pumps well fluid with a high gaseous content by utilizing an impeller design for use in gaseous liquids. The impeller has high discharge angles and large balance holes. The impeller has short and long vanes alternating with each other. The shorter vanes have a leading surface that is concave in shape. In one design, the longer vanes have a radially outward portion of a leading surface that is concave in shape. The radially outward portion of the longer vanes of this design has substantially the same radius of curvature as the shorter vanes. The radially inward portion of the leading edge of the longer vanes can be concave or convex in shape.

Abstract: A network card facility includes a wireless card device for coupling to the electronic facility, a processor device for processing the signals from the electronic facility, a coupler for plugging an SIM card member, a memory coupled between the coupler and the processor device, and an antenna coupled to the processor device to communicate with the network system. The information of the SIM card member may be supplied and stored in the memory, and may be transmitted to an ISP, to allow end users to communicate with the network system again and again with various kinds of different electronic facility, at any other places or locations.

Abstract: A wireless network card device includes a processing device, an interface coupled to the processing device for coupling to a computer facility, a subscriber identify module (SIM) coupler coupled to the processing device, and an SIM card member selectively coupled to the SIM coupler. An antenna may further coupled to the processing device of the wireless network card device via a wireless circuit, for allowing the wireless network card device to be easily communicated with various wireless network systems that may be provided or opened by various or different ISPs.

Abstract: A facility includes a network interface card device having an interface for coupling to and communicating with a computer, a processor device coupled to the interface, a coupler and an antenna coupled to the processor device, and a subscriber identify module (SIM) card for coupling to the coupler of the network interface card device, and to connect to network systems. With the SIM card, the users may readily communicate with various network systems without renting LAN cards or WLAN cards from the ISPs, and without preparing or coupling the other antenna devices.

Abstract: A compact flash card device includes a board received in a housing, an L-shaped antenna member attached to the board and received in the housing, and a cover secured to the housing, to retain the antenna member and the board in the housing. Both the antenna member and the circuit board may be received and concealed within the housing such that the antenna member will not be exposed and will not increase the volume of the CF card device, and will not be stricken by the other objects, and will not be disengaged from the housing of the card device. A welding member may further solidly secure the antenna member to the board.

Abstract: A centrifugal pump pumps well fluid with a high gaseous content by utilizing an impeller design for use in gaseous liquids. The impeller has high discharge angles and large balance holes. The impeller has short and long vanes alternating with each other. The shorter vanes have a leading surface that is concave in shape. In one design, the longer vanes have a radially outward portion of a leading surface that is concave in shape. The radially outward portion of the longer vanes of this design has substantially the same radius of curvature as the shorter vanes. The radially inward portion of the leading edge of the longer vanes can be concave or convex in shape.