373results about How to "Protection wear" patented technology

A device (1) for securing end portions (4) of ribbon (3), including a base (6), having at least two openings (17), a cap (5), including at least two openings (11), wherein cap (5) and base (6) are rotatable relative to one another wherein openings (17) cooperate with two openings (11) such that opposite ends (4) of ribbon (3) are guided through respective pairs of cooperating openings (11, 17), and ends (4) can be wound up, characterized in that in the spacing between first flat structure (12) and second flat structure (7) a separate hub element (23) includes teeth (14) staggered to be positioned on the gaps relative to one another, wherein teeth (14) form a v-shaped groove (25), which is interrupted by alternatingly staggered gaps and tapers toward the interior of the hub element (23).

In a self-propelling road milling machine (1), particularly a (recycler or) cold-milling machine, comprising a machine frame (4) carried by a track assemblies (2,3) via lifting columns (12,13), a milling roll (6) supported on the machine frame (4) for treatment of a ground or traffic surface (8), height-adjustable side plates (10) for edge protection, arranged to rest on the ground or traffic surface (8) to be treated, a height-adjustable stripping means (14) arranged in the moving direction behind the milling roll (6) and adapted to be lowered, during operation, into the milling track (17) generated by the milling roll (6), and a control means (23) for controlling the milling depth of the milling roller (6), it is provided that at least one measuring means (16) is operative to detect the lifting, caused by the current milling depth, of a first sensor means resting on the ground or traffic surface (8), and / or the lowering of the stripping means (14) or a second sensor means onto the surface of the milling track (17), the control means (23) obtaining the current milling depth at the level of the stripping means (14) of the milling roller (6) or of the second sensor means from the measurement values of the at least one measuring means (16).

A security holster for handguns which utilizes a U-shaped rod as part of the locking and releasing mechanism. The user presses a handgun against a portion of the U-shaped rod, which pushed the U-shaped rod forward, and causes the locking tab to seat against the ejection port or another feature of the handgun.

A spray coating system, in one embodiment, includes a spray gun having a body, a valve cartridge, and a protective insert. The body includes a passage intersecting a receptacle. The valve cartridge is disposed in the receptacle. The protective insert is disposed in the passage. The protective insert has a central passage, and the protective insert protects the passage from wear by liquid flow through the body.

A skateboard with two wheels (11), said skateboard having a front plate (15) and a rear plate (16) which are connected with each other by a spring element (3), which is secured to a rod (1 and 2) at both ends of the spring element (3). The two wheels (11), the front plate (15) and the rear plate (16) are secured inclined (4) to the rod (8, 11) by means of screw connections (4, 12) to form an angle relative to the upper sides of the plates (15 and 16). In this manner, the front plate (15) and the rear plate (16) are protected against breaks, as the wheels (11) are not secured directly to the front plate (15) and the rear plate (16), but to the rods (1 and 2) with the spring element (13).

Coated abrasive articles comprise a backing and an abrasive layer, wherein at the abrasive layer comprises a reaction product of components comprising polyfunctional acrylate, alicyclic polyepoxide, and aromatic polyepoxide having an average epoxy functionality of at least 2.5.

The present invention provides a new and useful nonstick coating for use on pure aluminum, alloys of aluminum, or aluminized steel surfaces. A nonstick coating according to the present invention includes a ceramic substrate disposed on an aluminum surface and a fluorocarbon polymer coating disposed on the ceramic substrate. The ceramic substrate, prior to firing, includes at least two layers: a first or bottom layer applied to the aluminum surface including an enamel ground coat; and a second or top layer applied over the enamel ground coat layer including a blend of one or more glass frits, non-ceramic refractory particles, and non-vitreous inorganic oxide particles. Upon firing, the ceramic substrate includes a continuous layer of vitreous enamel that is bonded to the aluminum surface. The exposed surface of the ceramic substrate has a micro-rough texture that is enriched with bonding sides for binder resins used in a fluorocarbon polymer primer layer. The ceramic substrate protects the aluminum surface from corrosion and mechanical damage and also protects the fluorocarbon polymer coating from abrasive wear.

A stump grinding wheel includes a wheel disc, which includes multiple recesses formed about its periphery. A peripheral cutter assembly is disposed in each one of the recesses and is mounted on the wheel disc. Multiple side cutter assemblies are mounted on the wheel disc, and each one includes a first pocket and a second pocket. The first pocket is disposed on one side of the wheel disc and the second pocket is disposed on the other side of the wheel disc, and a wear pad is formed adjacent a selected end of each pocket. A cutting tooth is received in aligned openings formed in the first pocket, the wheel disc, and the second pocket. A nut threadably engages the cutting tooth of the side cutter assembly to secure the tooth to the first and second pockets, and to secure the pockets to the wheel disc.

The invention includes improvements to a security holster including protective ridges for use around the release mechanism and the locking mechanism. Also included is a mortise and tenon arrangement for securing the holster body to a belt attachment plate.

A desk chair mat has a substantially planar upper surface suitable for interaction with a chair support structure, a perimeter defining an outer edge of the mat, a lower surface parallel to the upper surface. An array of generally blunt projections extends downwardly from a first area of the lower surface for engagement with a carpet. An image is formed within a second area of the lower surface. Each blunt projection has a smooth end surface spaced below the lower surface by a distance sufficient to penetrate into the carpet pile. The array is generally a regular pattern of the projections that can be arranged at an angle with respect to each nearest neighbor to provide enhanced resistance to lateral movement of the mat with respect to the carpet to protect the image from abrasion.

A block and non-rotating wear sleeve for holding a cutting tool used with mining and construction is disclosed. A key is used to intersect with notches in the wear sleeve and block at a rear face of the wear sleeve and block to prevent rotational movement between the wear sleeve and block. Locating the key and notches at the rear face provides an easily manufactured anti-rotation means which is also sheltered from the most of the abrasion experienced by the block and wear sleeve.

A security holster for handguns which utilizes a U-shaped rod as part of the locking and releasing mechanism. The user presses a handgun against a portion of the U-shaped rod, which pushed the U-shaped rod forward, and causes the locking tab to seat against the ejection port or another feature of the handgun.

A valve apparatus (100) for a well comprises a valve body (101), and a valve member (102). The valve body (101) includes a first passage (190) that extends through the valve body (101), and at least one second passage (193) that extends through the valve body and laterally from the first passage (190). The valve body (101) being connectable to the well so that a fluid flowing from the well is able to flow through the first passage (190). The valve member (102) being insertable into the first passage (190) and being moveable relative to the valve body (101) so as to thereby control the flow of the fluid from the first passage (190) into each second passage (193).

An ink-jet printer head is characterized by comprising an organic film coated on the surface of the nozzle plate for discharging ink, in which solid particles having abrasion resistance are dispersed, and a water-repellent film on the surface of the organic film, in which the chains of fluorocarbon polymer is grown. The head shows improved durability of the chains of the fluorocarbon polymer on the nozzle plate during cleaning of the nozzle surface.

An engine lubricant composition, a method for maintaining the soot or sludge handling capability of an engine lubricant while not adversely affecting elastomeric seal material in the engine and a method of operating an engine. The engine lubricant includes a base oil and a dispersant. The dispersant is a reaction product of A) a hydrocarbyl-dicarboxylic acid or anhydride, B) a polyamine, C) a dicarboxyl-containing fused aromatic compound, and D) a non-aromatic dicarboxylic acid or anhydride.

A stump grinding wheel includes a wheel disc, which includes multiple recesses formed about its periphery. A peripheral cutter assembly is disposed in each one of the recesses and is mounted on the wheel disc. Multiple side cutter assemblies are mounted on the wheel disc, and each one includes a first pocket and a second pocket. The first pocket is disposed on one side of the wheel disc and the second pocket is disposed on the other side of the wheel disc, and a wear pad is formed adjacent a selected end of each pocket. A cutting tooth is received in aligned openings formed in the first pocket, the wheel disc, and the second pocket. A nut threadably engages the cutting tooth of the side cutter assembly to secure the tooth to the first and second pockets, and to secure the pockets to the wheel disc.

The invention described here entails a work device (such as an abrasive cutting-off machine) that can be comfortably guided in a work position and is stable in a turned-off position without components relative to safety being exposed to increased wear. In particular, the work device has a foot unit having at least one rolling means and at least one support. The foot unit makes it possible to guide the abrasive cutting-off machine on the at least one rolling means in the work position and to set it on the support in the turned-off position.

The invention discloses a multi-metal composite wear-resistant elbow pipe and a preparation method thereof, wherein the inner side wall of the elbow pipe is formed through the composition of carbon cast steel on an outer layer and high-chromium iron on an inner layer, and is characterized in that the outer side wall of the elbow pipe is formed through the composition of three layers of different materials, namely a carbon cast steel outer layer (1), a high-chromium iron intermediate layer (2) and a wolfram carbide particle ceramic inner layer (3); the preparation method of the multi-metal composite wear-resistant elbow pipe comprises the following steps: foam model making, painting and baking, elbow pipe outer layer model packing, smelting, sand box vacuum pumping and pouring, taking out and cleaning castings on a carbon cast steel outer layer of the elbow pipe, elbow pipe interlayer model assembling, wolfram carbide particulate material paste painting, coating painting and baking, binning, smelting, sand vacuum pumping and pouring, taking elbow pipe castings out, cleaning and detecting, heat treating to the elbow pipe castings, detecting the hardness of the end surface of the multi-metal composite wear-resistant elbow pipe, and then warehousing; the prepared multi-metal composite wear-resistant elbow pipe has the advantages that the comprehensive mechanical property is excellent, the service life is long, the manufacturing technology is advanced, the maintenance and the installation are convenient, and a wide cost performance competition space is provided.