Abstract: A bobber includes a housing having a casing extended into a receptacle, a circuit board is disposed in the housing, a processor device and one or more light members are attached onto the circuit board, one or more batteries are electrically coupled to the circuit board. A switch device is coupled to the processor device and includes two conductor blades each having a leg extended into the casing, and a ball is disposed in the casing and engageable with the legs of the conductor blades for electrically coupling the legs of the conductor blades together, the ball is arranged to be disengaged from either or both the legs and to switch off the electrical coupling between the legs of the conductor blades when a fish strikes.

Abstract: A golf putting teaching device includes a path with two side walls and each side walls has a plurality of first sensors on an inside thereof. An end piece has a top board and two side portions. The end piece is mounted across two sides of the path and a plurality of second sensors are located on an underside of the top board. The first sensors in the side walls are electronically connected to the second sensors of the top board. A controlling device is connected to one of the tow side portions and electronically connected to the first and the second sensors so as to process the data collected from the first and the second sensors to display the direction, speed, distance, and other necessary information for each putting.

Abstract: A golf putting teaching device includes a path with two side walls and each side walls has a plurality of first sensors on an inside thereof. An end piece has a top board and two side portions. The end piece is mounted across two sides of the path and a plurality of second sensors are located on an underside of the top board. The first sensors in the side walls are electronically connected to the second sensors of the top board. A controlling device is connected to one of the tow side portions and electronically connected to the first and the second sensors so as to process the data collected from the first and the second sensors to display the direction, speed, distance, and other necessary information for each putting.

Abstract: A golf practising device includes a base, a number of sensors disposed along the base for sensing a movement of the ball along the base, a displayer device, and a processor device coupled to the sensors for receiving signals from the sensors and for treating the signals from the sensors and for sending treated signals to the displayer device and to be displayed on the displayer device. One or more fences are disposed on the sides of the base, and a housing disposed on the other end of the base for supporting the sensors. The fences each includes a number of bars secured together.

Abstract: A target device includes a rear sheet member and a front sheet member each having one or more conductor members aligned with each other, and an intermediate member disposed between the sheet members for separating the conductor members from each other. The intermediate member is compressible or deformable, or includes one or more openings having an area large enough for allowing the conductor members to be contacted with each other when the sheet members are deformed and hit by balls. The target device may be supported in any place or position with a frame.

Abstract: A pressure gauge includes a Bourdon tube coupled to a pinion of a spindle with a link and a sector gear, and to rotate the spindle in correspondence with a pressure in the Bourdon tube. The rotational movement of the spindle or the deformation of the Bourdon tube may be converted into a digital output and shown in a displayer. A disc is secured to the spindle and has a number of openings formed in the peripheral portion. A photo detecting device may be used for detecting a light emitted through the openings of the disc and for detecting the rotational movement of the disc.

Abstract: A pressure gage includes a Bourdon tube coupled to a pinion of a spindle with a link and a sector gear, and to rotate the spindle in correspondence with a pressure in the Bourdon tube. The rotational movement of the spindle or the deformation of the Bourdon tube may be converted into a digital output and shown in a displayer. A disc is secured to the spindle and has a number of openings formed in the peripheral portion. A photo detecting device may be used for detecting a light emitted through the openings of the disc and for detecting the rotational movement of the disc.

Abstract: A target game includes a target member having two films each of which has a center conductive member, and one or more ring-shaped conductive members. A spacer panel is disposed between the films and has a number of openings for allowing the conductive members to be contacted with each other. A plate is disposed in front of the films and has a center portion and one or more ring portions. The conductive members may be contacted with each other when the spacer panel is compressed and when a ball hit onto the plate. The target member is supported in a frame with four cables.

Abstract: A target device includes a rear sheet member and a front sheet member each having one or more conductor members aligned with each other, and an intermediate member disposed between the sheet members for separating the conductor members from each other. The intermediate member is compressible or deformable, or includes one or more openings having an area large enough for allowing the conductor members to be contacted with each other when the sheet members are deformed and hit by balls. The target device may be supported in any place or position with a frame.

Abstract: A data shifter with mobile control device comprises a main casing and a mobile control device. The main casing with an opening thereon and further comprises a primary circuit board, a control interface, a control interface, a plurality of connecting interfaces, and a periphery control circuit. The primary circuit board provides electric circuits at the front part and the rear part respectively on a lateral facial side thereof. The control interface at the front side of said main casing connects with electric circuits at the front part of the primary circuit board. The connecting interfaces are at the rear side of said main casing and connect with electric circuits at the rear part of said primary circuit board. The periphery control circuit is at the other lateral facial side of said primary circuit board and provides at least a main connector projecting outward from the primary circuit board opposite to and corresponding to the opening on the main casing.

Abstract: A carriage positioning structure includes a carriage pivoted to a longitudinal guide rod and reciprocated along a longitudinal sliding rail inside a scanner between a bottom shell and a flat glass plate, an image pick-up mechanism carried on the carriage and moved with the carriage to pick up the image of an object placed on the flat glass plate, a bottom guide wheel mounted on the carriage at the bottom and supported on the longitudinal sliding rail to guide reciprocating movement of the carriage along the longitudinal sliding rail, and a top guide wheel mounted on the carriage at the top and spaced below the flat glass plate by a gap, the top guide wheel being forced into contact with the flat glass plate by the gravity weight of the carriage when the scanner is turned upside down, permitting the carriage to be reciprocated on the flat glass plate along the longitudinal guide rod so that the image pick-up mechanism can pick up the image of a 3-D document placed below the scanner.

Abstract: A radiation therapy imager provides images of a patient while being treated while on a radiation therapy machine for purposes of verification and monitoring of position and alignment, and for shaping of the radiation field. The radiation therapy imager has a video camera mounted on the gantry of the radiation therapy machine and positioned diametrically opposite the treatment head. An elongated light box is disposed over the camera to exclude ambient light from the camera and a fluoroscopic plate is positioned at the distal end of the light box, i.e., the end remote of the camera. The plate is aligned with and facing the head to produce a fluoroscopic image in response to the treatment radiation that is applied from the head through the patient. A mirror in the light box is oriented to reflect the image to the camera to permit monitoring on a viewing screen. The light box can be retracted from under the treatment table either by telescoping the light box down or by swinging the light box to one side.