Abstract: A glueless shaft joining system, apparatus and method are disclosed. A base insertable into the hollow interior of the shaft can include a plurality of flexible fingers separated by a slot defined between each of the adjacent flexible fingers. The interior of the base is hollow and includes a threaded portion adjacent to the distal end that extends inwards in a proximal direction. A set screw can be inserted into the threaded portion of the hollow interior of the base. The set screw includes a threaded head portion and a non-threaded tail portion that diverges as it extends away from the head portion. The tail portion deflects the flexible fingers laterally outwardly as the set screw is advanced in the proximal direction through the base. A component, such as a broad head or arrow nock can be coupled to the insert as desired.

Abstract: To make secondary anchoring of small boats quick, safe, versatile, a low cost buoyant apparatus with an attached tripping strap has been invented to permit transport of a secondary anchor to its holding location. The invention, in addition serves to prevent excessive boat swings once anchored in restricted anchorage, and can also serve as a marker in the event that an earlier anchored boat needs to move and return to the same spot. This buoyant apparatus is very versatile; it can be used from the boat's bow, from the stern, and also as a lunch hook. Although the buoyant ring has an appearance of a life preserver, it is not intended for that use, and does not qualify as U.S. Coast Guard or Sheriff Regulation safety equipment.

Abstract: An internal combustion engine, configured in the form of an enclosed powered flywheel, operating in a horizontal plane, which functions both as an on-board gyroscope, to stabilize a vehicle from rolling over, and to simultaneously provide vehicular locomotion, through a power train, with the flywheel rotated by at least one fueled piston, of a hosting combustion chamber, internal to the flywheel.

Abstract: A corner piece is provided for interconnecting frame members. The corner piece includes a first plate member defining an inner face, an opposite outer face, a first side face, an opposite second side face, and an end face. The first plate member including a bolt-receiving bore therethrough. A second plate member defines an inner face contiguous with the inner face of the first plate member, an outer face, a first side face, an opposite second side face, and an end face. The second plate member includes a bolt-receiving bore extending between the inner face and the outer face thereof along a first axis generally parallel to the inner face of the first plate member.

Abstract: A system for measuring and displaying the pressure of conventional American-style footballs in real time to game officials and spectators continuously. In one preferred embodiment, at least one pressure transducer device is disposed inside the football. The pressure transducer is an electrical oscillator. The frequency of oscillation is a known mathematical function of the bladder pressure. At least one pressure readout device is positioned externally to the football at the outside of the cover-liner. The pressure readout device wirelessly stimulates the pressure transducer device to oscillate. The pressure readout device reads the frequency of oscillation and calculates the value of the pressure. In another preferred embodiment, the value of the football's pressure is measured by physical contact with a Durometer. Both embodiments display the pressure to game officials locally; and transmit the value of the football's pressure to spectators remotely.

Abstract: A device comprising an arm, with a hollow portion, a hub having a stator portion, and an elongated portion disposed into the arm; a rotor with an elongated portion for housing part of a spring. Wherein the spring has a first end disposed in the arm and a second end disposed in the elongated portion of the rotor, and a moveable arm, with a substantially hollow portion operable to receive the elongated portion of the rotor. Certain embodiments may include more than one moveable arm.

Abstract: Modular elements for safe container comprising Type A, Type B, and Type C edge rails that first are formed from two different widths of flat strips and then cut to the size of each panel sides, where Type A and Type B edge rails are used to assembly the container walls, floor, and roof of the safe, and are joined together by embedded high grade carriage bolts to form the safe body, while Type C edge rails are used to assembly the door panel that is joined hingedly with the safe body and have embedded fasteners for attaching door's locking mechanism.

Abstract: The connector is intended for use in displays of the kind which include a display frame formed of a plurality of beams) which are joined together by multi-way node fittings to form a three-dimensional shape, and display panels are releasably secured to the beams. The connector includes a male fitting which has a stem projecting from a plate, and a head comprising four noses which project laterally from the stem. The head is inserted in a correspondingly-shaped aperture of a female node fitting and rotated into positive engagement with the inner face of the node fitting. The trailing faces of the four noses have oppositely-inclined ramps which act to provide progressive tightening and alignment of the connector as the male part is rotated within aperture.

Abstract: A connection system (1) for detachably connecting a component element to a coated component part (3), includes a coupling element (2) that has a head (6) with a non-round outer cross-section and has a shank (5). The head (6) can be received by a frictional connection in a rotationally fixed manner in a head region (11) of a connection opening (4) of the component part (3). The shank (5) can be received in a friction-locked and/or firmly-bonded manner in a sealing region (12) of the connection opening (4). The head (6) has an internal geometry for connecting the component element.

Abstract: A removable surfboard fin adapter that allows removable fins, fin boxes and fin systems from different manufacturers to be compatible with each other. A two-tabbed type removable surfboard fin is received and secured in the recess of a single-tab type surfboard fin receiving box that would not otherwise be able to receive and secure a two-tabbed type removable surfboard fin. The adapter includes two slots that accept the tabs of the two-tabbed fin. The front, rear, or both front and rear of the adapter include a notch for securing he adapter to the single-tab receiving box. Angled slots are provided for canted fins.

Abstract: The present invention pertains generally to marking surfaces by using gravity system and marking object that is being placed in a marking tube and allowing by its gravity to touch the surface, predominantly to mark the surface. The marking tube is adjustable allowing the marking object to touch the surface accordingly; the marking tube is located on a supporting guide. Particularly, the present invention should and/or will be useful for marking any flooring surfaces and/or any other surfaces where applicable.

Abstract: A portable floating board device for various water activities such as swimming, diving, fishing, and emergency use. The floating board device includes a secure platform to sit or stand. The board includes an anchor system and storage system. The board may be carried by handles or by straps attached to the bottom side of the board for easy portable.

Abstract: A radon exhaust system comprising a cylindrical shaped vent housing, diagnostic filter fan housing, inline fan with redirecting vanes, ice filter, observation windows, access opening and closure cap, air flow indicators, water gutter, drain spout and an enlarged elliptical bulge area for additional air passage through the fan housing. The inline fan, located within the elliptical bulge, pumps radon laced air into redirecting vanes, which directs same air through exhaust side and out through expanded exhaust openings of the vent housing. Additionally, redirecting vanes protect the fan from falling ice which may be formed on the ice filter located above the fan. Water is prevented from entering the fan by a water gutter and drain. Observation windows allow visual interior monitoring without entering the fan housing. An access opening with closure cap allows interior maintenance, testing and off venting. These embodiments combine to protect radon systems from damage.

Abstract: When two conventional safety razor double-edged blades are superposed on top of each other, there is no space in between them to pass the shaving residues. The presently invented safety razor double-edged blade is equipped with several spaced protuberances on its surface. When two of these present invented blades are overlapped, there is a space between them to pass the shaving residues to be rinsed away by running water. Therefore two, three or more of them can be superposed on a single razor blade holder to allow the user to experience all the benefits of a multi-blade razor cartridge in a safety razor blade system.

Abstract: A drinking mug that doubles as an exercise apparatus is formed of non-toxic porcelain ceramic, glass, or wire reinforced glass. The combination of dimensions of the mug adds up to a total mass of at least 1.360 kilograms and possesses the ratio of dimensions of substantially 1, 3.9, 3.9, 2.443, 5.777, and 4.0 between the thickness of a base, diameter of the base, outer diameter of a barrel, inner diameter of the barrel at the end where the barrel connects to the base, height of the barrel, and vertical length of the handle, respectively. A neoprene material lines the base, handle, and the outside barrel surface. A substantially circular brim serves as a surface transition between the inside and outside surfaces of the cylindrical barrel and can contain a plurality of substantially concave scoops, each centered approximately ninety radial degrees offset of the handle.

Abstract: A pressure compensating system that minimizes the pressure differences across multiple shaft seals in a rod driven downhole pumping apparatus. The system balances the pressures across the seals by forcing the external pressure of all seals and compensators to be equal to the highest external pressure in the apparatus, made possible by the appropriate use of labyrinth-type seals. A bleed valve assembly which allows free flow of fluid into the pressure compensating system, but restricts the rate of fluid outflow from the system in case of shut-in of the pump, to limit the potential of rapid opening and closing of the mechanical shaft seals.

Abstract: A mechanical fitting for connecting structures may include a base structure and a plate member. The mechanical fitting may also include a support structure for supporting the plate member at a predetermined spacing from the base structure. The support structure may include a truss structure.

Abstract: An upper wheel fairing assembly for increasing the propulsive efficiency of a wheeled vehicle having wheels otherwise exposed to headwinds, comprising a deflector panel or skirt panel assembly mounted upstream in front of a rearward wheel set, ideally extending downward to not lower than the level of the axle, and arranged to deflect headwinds from impinging upon the high drag-inducing mechanically advantaged upper wheel surfaces downward onto the low drag-inducing mechanically disadvantaged lower wheel surfaces.

Abstract: A device includes first and second inter-engageable parts, each having a longitudinal axis and a connecting face extending substantially transversely to the longitudinal axis. The first part has an engagement formation extending substantially axially and the second part has a receiving formation extending substantially axially, and in which the engagement formation is receivable. The engagement and receiving formations each includes a substantially helicoidal surface extending at least partially around the longitudinal axis of the respective part of the connector, so that rotation of the parts relative to one another about the longitudinal axes, when the parts are substantially co-axially aligned, so that the connecting faces of the parts face one another in a substantially axial direction, causes engagement of the engagement formation with the corresponding receiving formation.

Abstract: A connector, for display systems having a display frame formed of a plurality of beams (1), has a male fitting (3) which has a stem (8) projecting from a plate (4), and a head (9) formed of four noses which project laterally from the stem. The head (9) is inserted in a correspondingly-shaped aperture of a female node fitting and rotated into positive engagement with the inner face of the node fitting. The trailing faces of the four noses have oppositely-inclined ramps which act to provide progressive tightening and alignment of the connector as the male part is rotated within the aperture. The connector provides a stable joint and enables a firm connection to be obtained with a smaller angle of rotation and reduced engagement force.