44 results about "Longitudinal ridges" patented technology

A memory card casing is composed of a top cover having multiple through holes defined in a peripheral edge of the top cover, and a bottom cover, wherein the bottom cover has multiple longitudinal ridges formed on a peripheral edge of the bottom cover, a first rib formed on the bottom cover to connect to one end of each of the longitudinal ridges and a second rib formed on the bottom cover to connect to the other end of each of the longitudinal ridges so that after a printed circuit board is inserted into a receiving space between the bottom cover and the top cover, contacts on the printed circuit board are exposed via the through holes of the top cover and fully supported by the longitudinal ridges.

A desert boot or shoe outsole for walking on sand having longitudinal ridges defining gaps between them, a continuous outer edge around the sole capable of containing sand while walking, and a sharp forward heel edge. Each ridge and gap has a cross sectional area, and each cross sectional area increases from a minimum at the outer edge to a maximum at the center of the outsole.

A nerve cuff comprising a wall band member having an inner surface defining a lumen when the wall band member is in a closed configuration for receiving a nerve therethrough. At least one longitudinal and contiguous conductor extends within the lumen. The conductor is insulated and has at least one exposed portion thereby providing an electrode. When mounting the nerve cuff to a nerve, each electrode is in electrical communication with the nerve. A multi-channel nerve cuff further comprises a plurality of longitudinal ridges formed on the inner surface with each adjacent pair of ridges defining a longitudinal chamber. Each chamber comprises a respective conductor extending therein. When mounting the multi-channel nerve cuff to the nerve, the ridges abut the nerve providing for each chamber to isolate respective longitudinal portions of the nerve. A method and an apparatus for manufacturing such nerve cuffs are also disclosed.

A simulated stringed musical instrument practice device having integrally formed longitudinal ridges simulating strings is herein disclosed. The present invention generally comprises an elongated section of material that is similar in shape to the neck of a conventional stringed instrument. The elongated section has a flat surface fashioned thereon having transverse ridges simulating frets as well as longitudinal ridges integrally attached thereto simulating strings. The frets are spaced progressively longer distances apart in order to more accurately simulate the fret board of a conventional stringed instrument. Optionally, the present invention may also provide utility as a computer keyboard wrist rest. Non-slip footings are provided for attachment to the flat surface in order to provide for secure placement adjacent the keyboard of a computer in a manner similar to conventional wrist rests. A combination simulated stringed instrument and computer keyboard wrist rest having a multi-layered elongated section which deforms to the shape of a user's wrist while used as a keyboard wrist rest is also disclosed.

An insole having a top sheet, a base layer, a forefoot pad, a heel cushion, and support cushion, as well as a strength layer inserted between those components to strengthen and enhance the durability of the insole. The forefoot pad can be made a blown EVA or other material, and the heel cushion can be made of a clear TPR, soft polyurethane or blown EVA. The support cushion has a raised lateral arch and a raised medial arch, the later of which has longitudinal curvilinear indentations, a flattened central midfoot area with a metatarsal mid-foot tear-drop raised area and longitudinal ridges on the flat midfoot area. A heel cup surrounds the exterior back by a heel cup, and a heel pod opening goes through the entirety of the thickness of base layer of the insole body for placement of the heel pad so the heel pad is affixed to the bottom surface of the base layer. There is also a supersoft metatarsal raised dome on the top (foot contact) surface of the insole which would be directly above the metatarsal midfoot area.

A glove with an enhanced gripping textured surface is disclosed herein. In preferred embodiments, the glove contains a palm region adapted to cover the palm of a person's hand, a thumb region extending outwardly from the palm region, an index finger region disposed adjacent the thumb region, a middle finger region adjacent the index finger region, a ring finger region adjacent the middle finger region, and a little finger region adjacent the ring finger region with each region containing a textured surface. In preferred embodiments, the textured surface is formed by a plurality of lateral and longitudinal ridges protruding above the surface of the glove, said lateral and longitudinal ridges intersecting to form a grid of raised three dimensional structures such as grid of raised squares.

A tool for suspending in a well retrieves various metal debris from the well, and includes an elongated tool body with a plurality of magnets included in a plurality longitudinal ridges which are circumferentially spaced. In the method a plurality of magnets can be positioned within openings, recesses, or pockets in each ridge, and held in place by one or more retaining plates, the tool being connected to a drill string and lowered into a well.

An optical sensor housing includes a sensor housing body including an enclosure wall upstanding from a bottom portion and a substantially open top portion defining a cavity in which the optical sensor assembly is located, at least one aperture, and at least one engaging part projecting orthogonally from an outside surface of the sensor housing body, a sensor housing cover including an open central portion, at least one integrally molded compliant flange configured to engage the sensor housing body engaging part and to secure the sensor housing cover to the sensor housing body, and longitudinal ridges extending outwardly and disposed substantially along the length of the sensor housing cover. The sensor housing engaging parts and flanges can provide a quick-lock mechanism operable to secure the sensor housing cover to the sensor housing body without the use of tools or fasteners.

The invention discloses a steel and concrete combined box girder concrete wing plate formwork and a construction method. The formwork comprises a plurality of supporting cross beams, a plurality of supporting longitudinal beams, two supporting stand columns, a plurality of pull rods, a plurality of nuts, a plurality of gaskets, a plurality of longitudinal ridges, a plurality of steel cover plate brackets and a plurality of steel cover plates. The steel and concrete combined box girder concrete wing plate formwork and the construction method have the beneficial effects that the steel cover plates are arranged on top plates of erected steel box girders for forming a formwork system with the steel box girders, so that the problems of road crossing construction and non-bracket construction are solved, in the specific construction, the installation can be completed only by manual operation without the matching of large-scale hoisting equipment, and the elevation of a die block can be very conveniently and precisely adjusted, so that the precision is high; and in addition, for wing plates of different sizes, only formwork equipment with different specifications is needed to be manufactured, the used formwork equipment materials are fewer and are all common structural steel for engineering, the processing difficulty is small, the use is simple, and the site construction use is facilitated, so that the construction period is shortened, and the construction cost is low.

A drive mechanism for a hammer drill comprises a hollow piston 558 having a cylindrical bearing that is adapted to receive a crank pin in order to cause the hollow piston 558 to reciprocate inside a spindle 548. A plurality of longitudinal ridges 559 are formed on the outer surface of the hollow piston 558 to reduce the surface area of contact between the hollow piston 558 and the spindle 548, and a plurality of grooves 561 are formed in the gaps between the ridges. The grooves 561 are adapted to retain lubricant 558 in order to reduce frictional contact between the hollow piston 558 and the spindle 548.

An enhanced multipurpose twist tie is formed with two helically disposed wires encased in a sheath having a polygon shaped cross section, a longitudinal ridges, and detachable end caps. The wires are defined by a longitudinal length and a pair of wire termini. The wires intertwine in a helical configuration along the length of the sheath. The helical configuration compresses the wires together and also allows for a greater concentration of wire to be fit into the sheath. The sheath is defined by an outer face having a plurality of longitudinal ridges that extend along the length of the sheath to provide a grip for facilitated twisting and tying of the twist tie. An inner face has a polygon shaped cross section that restricts longitudinal and rotational slippage by the wires. The end caps detachably attach at sheath termini to form a smooth surface over wire termini.

A mixing member, which is mounted to rotate axially inside the cylindrical tub of a blender; the mixing member having a number of longitudinal blades, which extend parallel to a reference longitudinal axis of the mixing member, and are spaced angularly about the aforementioned longitudinal axis to form a squirrel-cage structure bounded laterally by a cylindrical reference surface coaxial with the aforementioned longitudinal axis; each of the longitudinal blades having an outer lateral edge lying on the cylindrical reference surface and the outer lateral edge of each longitudinal blade being fitted with a scraper shoe, which includes a supporting plate fixed rigidly to the outer lateral edge so as to be substantially tangent to the cylindrical reference surface, and a straight scraper body which rests on the outer face of the supporting plate, has a longitudinal ridge facing outwards of the mixing member, and is fixed to the supporting plate to slide freely on the surface of the outer face in a direction locally tangent to the cylindrical reference surface.

A laminar “precured” or “replacement” tread for wheeled vehicles operating at night on retreaded tires is made more readily visible when grooves in the tires are provided with elastomeric strips or bands in which are embedded retroreflective elements such as transparent glass or synthetic resinous microspheres (referred to herein as “beads”). Upper surfaces of longitudinal ridges in a flat curing mold lend themselves to supporting the strips which are then precisely positioned in grooves defined by the ridges, when the flat tread is cured.

The invention discloses an all-dimensional oriented blasting charge guide rail device and a method thereof, and belongs to oriented blasting charge devices and methods. A first guide rail is connected with a plurality of common guide rails to form the device, antiskid wires (2) are mounted at the end (1) of the first guide rail, a longitudinal ridge (4) is arranged in the middle of a cartridge push rail (3) of the guide rail, cartridge antiskid saw teeth (5) are distributed on the longitudinal ridge (4), a hook hole (8) is formed in a front guide rail tail end (6), a metal hook (9) is arranged at a rear guide rail head end (7), the guide rails are connected through the metal hook (9) and the hook hole (8), the oriented blasting charge method is used for oriented blasting charge of middle and deep holes of forced grooving top-caving in the coal mining process, and the device is simple in integral structure and convenient to operate by the aid of traditional charge technology. The mounting directions of a cartridge energy-concentrated cover and the like is as same as the breaking direction of rocks, and accurate oriented control fracture blasting is realized.

A cutting insert for grooving operations includes a shank portion and a forward cutting head. The shank portion includes an upper surface, a bottom surface and side surfaces, wherein a line of intersection between the upper side and a forward clearance face forms a main cutting edge. Between the main cutting edge and a secondary cutting edge there is provided a corner cutting edge. The corner cutting edge comprises a primary curved edge with a first radius extending from the main cutting edge, and a secondary curved edge with a second radius, larger than the first radius, that extends from the primary edge to a side edge and oriented perpendicular to the main cutting edge. The cutting insert also comprises an upper side confined by two longitudinal ridges and an elongated chip forming recess therebetween.

The present invention is a longitudinally reinforced wave-riding board comprising an elongated body having an elliptically shaped deck surface for supporting a surfer. The deck comprises a recessed area with a longitudinal ridge that segments the recessed area into two substantially equal recessed sections. A fin extends downwardly from a bottom surface of the wave-riding board, and one or more longitudinal stringers strengthen the structure of the board.

The roller support (2) for supporting three strand guide rollers (8) in a strand guide segment (1) of a strand casting machine for casting a strand with slab or thin slab cross-section, comprises a closed frame (7), which is formed from transverse bars or transverse ridges and longitudinal bars (15) or longitudinal ridges (16), and two bearing blocks (12). The invention aims to improve the maintainability of the strand guide segment (1) through the rigidity of the roller support (2) and the structure of space saving of the roller support (2). Specifically, the aim can be achieved by uninstalling or installing a single spray nozzle (9) and a jet pipe (10) on the premise that the strand guide segment (1) is relatively compact and installed for a short time. The frame (7) together with the longitudinal bars (15) or longitudinal ridges (16) forms a lattice-like structure with mesh windows (17). The mesh windows (17) are formed for accommodating two spray nozzles (9) for cooling the strand.

The present invention relates to a microtiller which can be walked in length direction and breadth direction. In the concrete, it is a small-type walking tractor for planting vegetables. It is characterized by that it has a lengthwise walking wheel which can be walked along longitudinal ridge and a breadthwise walking wheel which can be walked along transverse ridge, when the ridge tillage is made, it has no need of making a turn. Said microtiller can be operated on the ridged field surface, over the crops a proper gap can be remained, so that it can greatly raise mechanization level.

A chamfering tool comprising: a base having first and second walls meeting each other along a longitudinal axis and defining a longitudinal recess along the bottom of the base for engaging a work piece and a longitudinal ridge along the top of the base; a viewing window in the base for viewing the work piece, the viewing window intersecting the longitudinal recess and the longitudinal ridge; and a blade clamp mounted on the base and arranged to clamp at least part of a blade in the viewing window.

A damper action for an upright piano that comprises a springed tab on the damper lever that “ratchets” or gives way or folds away in one direction and does not in the other, to provide retention when the spring tab passes by the longitudinal ridge on the sostenuto rod in one direction and non-retention when the spring tab passes by the longitudinal ridge on the sostenuto rod the other direction. The ratchet aspect of the spring tab uses tension from the damper spring and does not require a separate spring to apply tension to yield the ratchet effect.

Microwave warming apparatus includes a housing defining a heating waveguide with a longitudinal ridge and a heating cavity. A slot extends through the ridge into the heating cavity for receiving a cartridge containing a looped tube so that the tube extends into the heating cavity where the tube contents are heated by energy coupled into the waveguide. Receiving waveguides adjacent to the slot sense the thermal radiation emanating from the tube and deliver corresponding signals to a radiometer which produces a temperature indication. The cartridge includes a support member which maintains the shape of the tube loop. A pair of notches in the support member have walls enabling the notches to complete the receiving waveguides in the housing.

The invention relates to an electric heating element (1) formed by a pipe (2) with a longitudinal slit, and provided with a bendable heating body (3). The heating body is installed on a housing layer; the pipe (2) can be clamped by a clamping device (5) to a to-be-heated body; a recessed pit (6) is formed in the housing layer of the heating body to form the clamping device (5); the recessed pit covers teh longitudinal slit (10); a sliding plate (7) is movably arranged in the recessed pit along the heating element (1); the bottom surface of the sliding plate opposite to the recessed pit (6) returns behind an alinging line of the housing layer; projections (8) inserted into window-shaped notches (9) are formed on two sides of the longitudinal slit (10) in the recessed pit (6); the projections are matched wtih longitudinal ridges of the notches (9), so the sliding plate (7) enables the heating body (1) to be fastened on the to-be-heated object.