144 results about "Talus surface" patented technology

A talus surface implant has an arc shaped body with a top side interfacing to the tibia and a bottom side having at least one post for interfacing with holes in the talus and a plurality of spikes for interfacing with the surface of the talus. Preferably the implant is double arc shaped.

A series of interconnectable foam-block ramps and platforms are provided that are cut from low density EPS foam but coated with durable exterior polyurea coating, and that include optional hard surfaces, and edge-and-corner treatments, and railing with hand grips. The components resist deformation and withstand extreme weather conditions, but are surprisingly lightweight and include integral hook connectors that securely engage. They can be easily assembled/installed to form a handicap ramp and/or arranged to form novel “terrains” for wheeled devices and/or arranged to form stages and platforms. The components are sufficiently durable to support high-stress wheeled devices such as a wheelchairs, trick bikes, skateboards, in-line skates and the like. A variety of optional components include a curb-simulating element, intersection-forming platforms, X-intersection connectors, double-decker platforms, steps, and railings.

Metal faced insulated inserts have interior and exterior surfaces with parallel longitudinal edges between an upper and lower short edge. Each longitudinal edge of each insert has two deep recesses and a central shallow recess. A plurality of generally I-shaped concealed locking beams have a central section and parallel end sections. Each end section has a central region of a thickness less than end regions to form a locking ramp. A pair of similarly configured metal facings for each concealed locking beam with opposed end parts are located within the deep recesses at the longitudinal edges of each insert. Each end part terminates in a V-shaped projection configured to allow the end regions of the concealed edge lockings to compress the V-shaped projections and allow the end regions of the concealed locking beams to mate with the metal facings.

An artificial knee joint comprise a femoral component and tibial component. The posterior side of the femoral component comprises medial and lateral condyles, wherein the width and offset of the posteromedial condyle is greater than the width and offset of the posterolateral condyle. At the posterior the tibial bearing component comprises medial and lateral articulating surface geometries, wherein the posterior slope of the lateral articulating geometry is greater than the posterior slope of the medial articulating geometry. The medial articulating surface geometry of the tibial bearing component supports the medial condyle of the femoral component and the lateral articulating surface geometry of the tibial bearing component supports the lateral condyle of the femoral component. The greater slope of the lateral articulating geometry allows the femoral component condyle to roll down to the posterior during knee flexion. This invention of an artificial knee joint for a prosthetic knee implant system facilitates deep knee flexes beyond 130 degrees.

A building construction is provided, including a plurality of connectors. Each of the connectors has an upper portion, a lower portion, a flange extending outwardly between the upper portion and the lower portion, and an axial bore extending through the connector from the upper portion to the lower portion. The upper portion and the lower portion define sloped bearing surfaces. The connectors are positioned between a plurality of building structural members. The upper and lower portions of the connectors extend into recesses in the structural members having sloped walls corresponding to the sloped bearing surfaces of the connectors. A tensioner extends through the bores of the connectors to connect the structural members. The bearing surfaces of at least two of the connectors have different slopes.

A fence panel that tracks a sloped terrain surface, in which a pair of spaced-apart rails each have a first longitudinal edge and an opposing second longitudinal edge on a side of the rail, and a plurality of pickets having first pickets and at least two second pickets disposed spaced apart on the side of the rails, with the first pickets attached by a fastener only between the picket and the first longitudinal edge of the respective rail and the second pickets attached by a fastener only between the picket and the second longitudinal edge of the respective rail, so that the rails do not roll away from the pickets when racking the fence panel by moving the opposing ends of the rails in vertically opposite directions to conform the slope of the fence panel to the terrain surface. A method of making a fence panel is disclosed.

The pool cleaning device of the invention has a housing bottom with an elliptically-beveled suction hole inlet and optional topographical features that facilitate smooth flow of water to and into the suction hole so as to improve capture of tree leaves and other debris. The optional topographical features include a sloped bottom along the leading edge to minimize the possibility of debris catching on the outer edge of the housing bottom, a bottom suction cavity with or without partitions designed to direct debris toward the elliptically-beveled suction hole inlet, and a fender that partially wraps around a cylindrical rotary brush along the leading edge of the housing.

A durable, weld-on tooth for roll crushers is provided. The tooth includes a cast high-carbon steel body having multiple transverse grooves for receiving tungsten carbide inserts, which are silver brazed into the grooves. The tungsten inserts are located on the surfaces of the tooth that are most susceptible to wear from abrasive action of the coal as the roll crusher operates. The cast carbon steel body can be directly welded to the exterior cylindrical surface of a rotary roll crusher. For a preferred embodiment of the tooth, the front and side faces of the cast high-carbon steel body have bevels that enable weldments that secure it to the roll crusher drum to be somewhat recessed beneath the cast high-carbon steel body on three sides thereof.

The present invention provides (i) a process of making decorative flooring materials, which have elegantly designed V-shaped grooves with curved slopes and of which the decorative sheets hardly peel off the base materials, and (ii) a decorative flooring material made by the process, which has elegantly designed V-shaped grooves with curved slopes and of which the decorative sheet hardly peels off the base material. The process of making decorative flooring materials comprises the steps of (i) pasting a decorative sheet 2 on a base material 1 to make a decorative flooring material 10, (ii) cutting temporary V-shaped grooves in the surface of the decorative flooring material 10 which are narrower than finished V-shaped grooves with curved slopes, (iii) positioning V-shaped pressing protrusions of a pressing die 6 above the temporary V-shaped grooves, the slopes of each V-shaped pressing protrusion being paraboloidal and symmetrical, (iv) pressing the V-shaped pressing protrusions into the temporary V-shaped grooves to form the V-shaped grooves with curved slopes 3, the edges of the decorative sheet along the temporary V-shaped grooves covering the curved slopes partially, (v) painting the curved slopes in the same color as the decorative sheet 2, and (vi) painting the entire surface of the decorative flooring material 10.

A cutting element is composed of a metal carbide stud having an outer hemispherical distal end which has a series of annular ridges. The tops of the annual ridges are substantially non-planar, i.e., curvilinear, such that the angle formed between the slope on either side is less than 120.degree.. There are no surfaces tangent to vertical on such ridges. A layer of polycrystalline superabrasive material is disposed over the annular ridges. This cutter is easily manufacturable as the metal stud can be pressed and extracted from the punch without further machining and the surface geometry of the metal stud allows for complete PCD compaction during diamond sintering.

The device to hang an architectural panel on a wall preferably comprises a support structure having first and second surfaces and a circumferential surface therebetween, a hole between the first and second surfaces, and a screw having a head, shaft and plurality of threads about the shaft. The screw is located in the hole and connected to the support structure such that the head is at or below the first surface of the support structure and the shaft is perpendicular thereto. The device can be driven into a wall and will support an architectural panel locatable thereon. Specifically, a panel clip, attached to the back of the architectural panel, can be placed on the support structure and the device will support the panel placed thereon. The circumferential surface of the support structure preferably includes a bevel to facilitate the placement of the panel clip onto the support structure.

In one aspect of the present invention, a high-impact resistant tool comprises a superhard material bonded to a substrate at a non-planer interface, the superhard material comprising substantially pointed geometry with a substantially conical portion, the substantially conical portion comprising a tapered side wall with at least two different, contiguous slopes that form an angle greater than 135 degrees, and the thickness from an apex of the superhard material to the interface is greater than the thickness of the substrate.

The invention discloses a 3D printing personalized talus surface replacement prosthesis, comprising a prosthesis made by 3D printing technology. The prosthesis includes a smooth joint surface for fitting to the subtalar articular surface and a part to cut away from the talus. The prosthesis further comprises a body between the smooth connecting surface and the rough contact surface, and the roughcontact surface is provided with a plurality of micropores which are fixedly connected to the talus by allowing the newly growing bone of the talus to protrude. The prosthesis is provided with a connecting piece for connecting it to the talus. The 3D printing personalized talus surface replacement prosthesis provided by the invention has talus surface replacement retaining all ligaments around thetalus, which not only maintains the stability of the ankle joint and the posterior foot, but also preserves the normal body sensation of the patient, and the clinical prognosis is predictable and good.

The invention relates to a core drilling drill with barrier crushing and chip-discharge functions. The core drilling drill is characterized by comprising a drill matrix which is in a hollow cylinder shape. A drill stem connection portion is arranged at the upper end, the lower end is radially retracted inwards to form a separation cutting ring, a boss surface formed by the inwards-retracted drill matrix is an inclined surface, and a coring mechanism arranging place is formed between the interior of the drill matrix and the separation cutting ring; and outer spirals are connected onto the outer surface of the drill matrix, and cutting tools evenly distributed on the circumference are connected onto the outer surface and the inclined surface of the separation cutting ring. According to the core drilling drill with barrier crushing and chip-discharge functions, space nearby the cutting tools is large, so that reduction of frictional heating between the drill and lunar soil is facilitated; besides, the surface of the drill is hardened and smoothed, so that the frictional heating is reduced greatly; and crushing, separation and chip discharging effects during the drilling are good, and the structure can further solve frictional heating problem to a certain extent, so that the drill is applicable to drill and sample on lunar surfaces.

The present invention is building decoration board locking structure for connecting two building decoration boards. Each building decoration board has one hooked block formed in the upper part of one side and one notch in the lower part of the opposite side. The hooked block includes one connecting part and one clamping tenon extending perpendicularly from the end of the connecting part for being held with the clamping tenon of the other building decoration board, and the clamping tenon has one inclined plane and one hook. The notch has one inclined plane and slot for connection with the clamping tenon. The present invention has simple structure, easy assembling and great connecting force for connecting two building decoration boards closely. The present invention may be used widely in floor board, wall board and other building decoration boards.

This is about a V shape arc shallow slot structure of composite floor and its manufacture method. A prototype of the board is processed through a miller along its perimeter a V shape arc of radius R=6~8 mm and depth h=0.3~1.2 mm. Then process a shallow slot along a tangent bevel with an angle to the board of alpha=11~37o at a depth h=0.8~1.5 mm. Finally pave on whole board surface including slot wear resistance paper and decoration paper and hot press by a thermo presser to form the final board product.

The invention relates to a composite floor board with a bevel edge and a manufacture technology thereof. The invention is characterized in that the floor board comprises a balance paper, a floor board base material, a surface paper and a wear-resisting layer; the floor board has the shape of a long strip; each opposite two sides on the four side surfaces of the floor board are correspondingly provided with tenons and grooves which are connected with the adjoining floor board; the upper edges of one pair of long edges on the floor board are provided with incline chamfer angles or arc chamfer angles which are shaped by symmetrical cutting; and the incline chamfer angles or the arc chamfer angles and a plane surface of the floor board are integrally glued with the surface paper and the wear-resisting layer. The manufacture technology comprises the following steps: firstly, the balance paper and the floor board base material layer are pasted with each other; secondly, the floor board is cut into strips; thirdly, the upper edges of the floor board are cut into the incline chamfer angles or the arc chamfer angles; fourthly, the floor board with the cut incline chamfer angles or arc chamfer angles are integrally glued with the surface paper and the wear-resisting layer; and finally, the four edges of the floor board are machined into the tenons and the grooves. The floor board can not break the inner structure of the floor board, has beautiful appearance and no deformation, and is especially firm and durable.

The invention discloses an anti-fall device, which comprises an anti-fall hook, wherein the upper end of the anti-fall hook is a hinged end, and the lower end of the anti-fall hook is provided with a hook-shaped part; the top of the hook-shaped part is provided with an anti-fall supporting surface, and the bottom of the hook-shaped part is provided with a lower guide inclined plane; a ratchet is arranged on the anti-fall hook and is provided with a plurality of ratchet teeth; when the ratchet teeth rotate to a position above the anti-fall supporting surface along with the ratchet, the end parts of the ratchet teeth point to the tip of the hook-shaped part; an upper guide inclined plane which inclines towards a direction opposite to the upper guide inclined plane is formed on the upper side of the ratchet teeth; and the ratchet teeth are at least locked at a position where the upper guide inclined plane is formed and are prevented from rotating towards the anti-fall supporting surface. Compared with the prior art, the anti-fall device has a simple and compact structure, fulfills the aim of preventing a vehicle carrying plate from falling off without additional control, is safe and reliable, is convenient to use, and can be widely applied to various types of parking equipment.