Abstract: A bone plate fixation system for fixation of the distal radius bone includes a bone plate having an elongate shaft portion and a triangular-shaped head portion, with each portion defining a number of bone screw openings extending therethrough for receipt of bone screws. The triangular-shaped head portion may define an elongate visualization window having a window length extending across a width of the bone plate. At least some of the openings include flexible fins protruding radially inward into the opening and deflectable by the head of a bone screw to retain the bone screw in position within the opening. In one embodiment, the bone plate has an outer perimeter that is substantially symmetrical relative to a longitudinal axis of the bone plate. In another embodiment, the elongate shaft portion includes an elongate slot having a length extending along the longitudinal axis.

Abstract: Systems for reducing a fracture in a bone, comprising a bone plate and a polyaxial fastener. In some examples the head of the polyaxial fastener has a deformable portion. As a fastener is inserted into an opening of a bone plate, threads located within the opening deform the deformable portion to secure the fastener in place at a desired angle within the opening. The head of the fastener also includes a bottom portion that bears against a portion of the opening to move the bone plate relative to the underlying tissue. A securing member or other structure may be included at the interface of the head and the deformable portion to secure the deformable portion to the head. At least one flute may be included on the deformable portion that provides a lead-in for the threads within the opening to cut into the deformable portion.

Abstract: A vehicle seat back having a vehicle seat back frame and a method of producing the seat back frame can be used in multiple vehicles and includes a stamped first vertical frame member having a varying depth u-shaped and a roll formed second frame member having a constant depth u-shaped cross section and the first frame member is a common part used in multiple vehicles having a substantially constant height vehicle seat backs and the second frame member is cut to length used in multiple vehicles having different width vehicle seat backs.

Abstract: A device for targeting a landmark of an orthopaedic implant including a housing configured to engage a mating structure for attachment of the housing to the orthopaedic implant, and an electromagnetic sensor located at a known position within the housing, wherein, when the housing is engaged with the mating structure, the position of the sensor relative to a landmark of the orthopaedic implant is known for at least five degrees of freedom.

Abstract: There is provided a drill guide assembly (10) adapted for removable connection to a bone plate (200, 310, 1150, 1250) and for guiding a drill bit (300) through at least one hole (202, 312) that has a central axis. The drill guide assembly (10) includes a guide sleeve (80, 600, 910, 952, 1000, 1052, 1110, 1210) and a guide collar (30) connected to the guide sleeve. The guide collar has an outrigger (40, 500, 800), and the outrigger has at least one opening (42, 504, 804) adapted to receive the drill bit. The at least one opening allows an operator to select an angle for placement of the drill bit and limits the maximum angle selectable by the operator.

Abstract: A variable angle locking implant includes a bone plate having a lower surface, an upper surface, and at least one opening extending from the lower surface to the upper surface along an axis. The opening has a plurality of fins oriented along a plane. The axis is non-perpendicular to a tangent of a projection of the lower surface across the opening, the tangent defined at the intersection between the axis and the projected lower surface, and/or the plane is non-parallel to the tangent. The implant includes at least one fastener, and the plurality of fins are deflectable relative to a head portion of the fastener such that the fastener can be inserted and retained at any one of a plurality of angles.

Abstract: Systems for reducing a fracture in a bone, comprising a bone plate and a polyaxial fastener. In some examples the head of the polyaxial fastener has a deformable portion. As a fastener is inserted into an opening of a bone plate, threads located within the opening deform the deformable portion to secure the fastener in place at a desired angle within the opening. The head of the fastener also includes a bottom portion that bears against a portion of the opening to move the bone plate relative to the underlying tissue. A securing member or other structure may be included at the interface of the head and the deformable portion to secure the deformable portion to the head. At least one flute may be included on the deformable portion that provides a lead-in for the threads within the opening to cut into the deformable portion.

Abstract: A system and method of security authentication and key management scheme in a multi-hop wireless network is provided herein with a hop-by-hop security model. The scheme adapts the 802.11r key hierarchy into the meshed AP network. In this approach, a top key holder (R0KH) derives and holds the top Pairwise Master Key (PMK—0) for each supplicant wireless device after the authentication process. All authenticator AP take the level one key holder (R1KH) role and receive the next level Pairwise Master Key (PMK—1) from R0KH. The link level data protection key is derived from PMK—1 via the 802.11i 4-way handshaking.

Abstract: A system and method of security authentication and key management scheme in a multi-hop wireless network is provided herein with a hop-by-hop security model. The scheme adapts the 802.11r key hierarchy into the meshed AP network. In this approach, a top key holder (R0KH) derives and holds the top Pairwise Master Key (PMK_0) for each supplicant wireless device after the authentication process. All authenticator AP take the level one key holder (R1KH) role and receive the next level Pairwise Master Key (PMK_1) from R0KH. The link level data protection key is derived from PMK_1 via the 802.11i 4-way handshaking.

Abstract: An electric hair clipper comprising a first clipper body having a support tongue pivotally mounted on an inclined front end of the clipper body, the support tongue having an upper surface carrying a first projection and a top end defining a second open-ended slot; a first cutting head assembly releasably and operably engageable with the first clipper body, the first cutting head assembly having a tongue-receiving socket, for releasably receiving the support tongue, comprising a strap disposed on a bottom blade of the cutting head assembly, the strap having a central portion with a bottom end defining a first open-ended slot and an inner surface carrying a second projection wherein the first and second projections are received in the first and second slots, respectively, when the support tongue is inserted into the tongue-receiving socket to releasably and operably engage the first cutting head assembly with the first clipper body and also to prevent the first clipper body and the first cutting head assembly f

Abstract: A powertrain including an engine and attached power transmission means has a stiffening bracket extending between the side walls of the engine block and the transmission means housing. The bracket extends under and separate from the engine oil pan and has integral ribs depending from a floor and extending longitudinally and diagonally from the power transmission connections to each of the side wall connections to add both bending and torsional stiffness to the powertrain, thus reducing vibration, noise and stress.

Abstract: An oil pump for an internal combustion engine includes an annular boss on a front cover of the engine, a counterbore in the front cover behind the boss, crankshaft driven oil pump elements in the counterbore, and a planar closure plate attached to the front cover over the counterbore and capturing the pump elements. The closure plate has a pair of raised protuberances thereon which span the chain drive chamber of the engine behind the front cover and which straddle the chain within the chamber, each of the protuberances having a flat wall around respective ones of a pair of ports in the closure plate. One of the ports is connected to the pump intake and the other is connected to the pump discharge. A pair of face seal assemblies on the cylinder block of the engine around low and high pressure galleries engage the flat walls of the protuberances when the front cover is installed on the cylinder block and define fluid seals around the ports.

Abstract: A jet propulsion engine and a method of operating a jet propulsion engine for propulsion of an aircraft over a wide range of speed from zero to supersonic. The engine is a turbofan type with a duct burner and with separate variable exhausts from the duct burner and from the gas turbine engine. The gas turbine core engine includes a gas generator and a low pressure turbine which drives the fan. The fan includes variable outlet guide vanes and the low pressure turbine includes a variable first-stage nozzle. The engine is operated as a normal duct burning by-pass jet engine from zero air speed up to about Mach 3. The fuel to the core engine is shut off through a transition range of speeds. Above this range the engine operates with only the duct burner supplied with fuel, with the gas generator windmilling, and with the low pressure turbine continuing to drive the fan to supercharge the duct burner, which operates as a supercharged ramjet.