1032 results about "Knurling" patented technology

The invention discloses a method for preparing heating but incombustible cigarettes and application thereof. The method and the application have the advantages that novel knurling rolling technologiesare adopted, accordingly, heating but incombustible reconstituted tobaccos with certain thicknesses have uneven surfaces, the surface areas can be enlarged, atomization effects can be enhanced, and surface frictional force can be enlarged; embossed composite aluminum-foil cigarette paper is adopted, accordingly, friction between the reconstituted tobaccos and aluminum-foil pattern surfaces of thecomposite aluminum-foil cigarette paper which is a cigarette making and plug assembling material can be greatly enhanced when the reconstituted tobaccos and the composite aluminum-foil cigarette paper are loaded in a cigarette making and plug assembling machine and cigarette making and plug assembling are powered on in later periods, the heating but incombustible cigarettes are easy to process, equipment shutdown frequencies can be reduced, the heating but incombustible cigarettes can be continuously produced, the production efficiency can be improved, and the material cost and the productioncost can be reduced; low-temperature cigarettes have short cut tobacco sections, accordingly, friction can be improved, the method is beneficial to reducing cut tobacco dropping, and the shortcomingsof low frictional force between smooth surfaces of existing heating but incombustible reconstituted tobaccos and non-embossed aluminum-foil paper which is a wrapping material, severe slipping, frequent equipment shutdown due to incapability of driving cigarette paper, influence on production efficiency, low frictional force due to short cut tobacco sections of existing low-temperature cigarettes,vulnerability to dropping of low-temperature cut tobaccos of the existing low-temperature cigarettes and the like can be overcome.

The invention relates to an automatic stringer which comprises a power transmission device, an automatic meat slicing device with a propelling automatic meat locking box, a knurling tool meat cutting device, a shearing and feeding device and an automatic prod punching device, wherein the device integrates slicing, slitting, bar-cutting and prod-stringing, so that the production efficiency is improved, automation and multi-functionalization can be further realized, the automatic stringer is multipurpose, and the consumption of manpower and material resources as well as financial resources is greatly reduced. The automatic stringer not only can string meat, but also can string various foods such as balls and the like. Moreover, meat in different thicknesses and different sizes can be stringed. The mechanical degree and the production efficiency are improved, and the automatic stringer is easy to operate and maintain, low in cost, small in size and high in degree of automation.

A leveling assembly for an appliance is provided. The leveling assembly includes a clench nut mounted to the appliance and a jam nut. The clench nut and the jam nut each have a knurled surface. A leveling leg is threaded through the clench nut and the jam nut such that the knurled surfaces of the clench nut and jam nut are facing. The knurled surfaces of the clench nut and jam nut can engage one another to lock the leveling leg in position by impeding rotation of the leveling leg.

A machine may produce a tube having textured internal and external surfaces in a single operation. Inner and outer knurling tools may form the textured surfaces. The texturing of the internal and external surfaces may be helical patterns of ribs and grooves. The height of the ribs formed in the internal and external surfaces may be less than about 35 mils. The angles of the patterns relative to a longitudinal axis of the tube may be less than about 45°. The angle of the helical pattern allows textured tubes to be used as heat exchanger elements wherein flow is directed substantially coaxial to the longitudinal axes of the tubes. The helical pattern formed in the external surface may be oriented in a right hand or left hand helical orientation. Similarly, the helical pattern formed in the internal surface may be oriented in a right hand or left hand orientation.

Sipping straws are confined in discrete envelopes while advancing in a single file of spaced-apart straws through a wrapping station. The envelopes are obtained from a continuous strip of wrapping paper which is conveyed to the wrapping station in the direction of advancement of the file of spaced-apart straws and is draped around the straws in such a way that one of its longitudinally extending marginal portions overlies and adheres to the other marginal portion with simultaneous formation of a seam rather than an outwardly extending fin. The thus obtained tubular wrapper is thereupon severed in the gaps between successive spaced-apart straws, and the end portions of the thus obtained discrete envelopes are sealed by knurling, e.g., simultaneously with severing of the tubular wrapper.

The invention provides systems and methods for ergonomic dental instruments for dental professionals with small hands. In one embodiment, a dental instrument includes an elongated metal handle having a length in the range of about 3-7/16 inches to about 3-15/16 inches and a diameter in the range of about 1/4 inches to about 3/4 inches. A working end may be operably coupled to one or both ends of the handle via a sweated fit. The length and knurling of the elongated metal shaft and terminal shaft facilitate optimum performance for the user.

The invention relates to a hydrodynamic bearing system particularly for use as a rotary bearing in a spindle motor for a hard disk drive, comprising a shaft, a thrust plate firmly connected to the shaft by means of a pressfit connection and a bearing sleeve closed at least at one end by a cover plate, the bearing sleeve enclosing the shaft and the thrust plate with a slight radial or axial spacing forming a concentric bearing gap filled with a lubricant. In the hydrodynamic bearing system according to the invention, it is provided that the outer circumference of the shaft, in the area of connection with the thrust plate, has a surface interrupted by regular depressions, preferably formed by knurling, in order to decrease the contact surface proportion of the fit surface. As an alternative, the inner circumference of the thrust plate can also be knurled in the area of connection with the shaft.

The invention relates to a production method of a negative oxygen ion multifunctional automotive trim leather. The production method comprises fleshing, liming, deliming, softening, pickling, tanning, retanning, neutralization, dyeing, fat liquoring, drying, softening, bottom coating, middle coating, knurling and top coating; in the pickling and tanning steps, salt is added for pickling, and aldehyde is added for tanning; the pickling by adding the salt is as follows: the leather is washed by softening water; the liquid ratio is 50%; by 100 mass parts of the leather, 50 parts of water are added; the temperature is controlled at 20+-2 DEG C; 7 parts of sodium chloride are added for reaction by 15 minutes; then, 0.5 part of 10 wt% of dilute formic acid is added for reaction by 30 minutes; then, 0.5 part of 10 wt% of dilute formic acid is added for reaction by 30 minutes; 0.35 part of 5 wt% of dilute sulfuric acid is added for reaction by 30 minutes; sulfuric acid is added again by the same mode for reaction by 90 minutes; after dilute sulfuric acid is added, the pH value is controlled within 2.8+-0.1; and the reaction is performed by 60 minutes. The production method has the functions of constant release of negative oxygen ions, sterilization and bacteria resistance, achieves the effect of efficiently absorbing, decomposing and degrading such harmful gas as formaldehyde, and achieves softness and excellent shaping property.

The present invention generally provides a bottom seal for a container. The container has a side wall having an upper end and a lower end. A bottom wall closes the lower end of the side wall. The bottom wall has a base and a skirt projecting from an outer periphery of the base. A bottom seal made of a portion of the lower end of the side wall being folded generally radially inward and back on itself forms a first seal region and an adjacent second seal region. The first seal region includes the skirt and the lower end of the side wall. The second seal region does not include the skirt. One or more concentric ring seals, knurling patterns, or both are formed in at least one of the first and second seal regions of the bottom seal.

An intrinsic gauging device for a ferrule type tube fitting of the type having a coupling nut, a coupling body and at least one ferrule, includes a precisely formed marking that has a predetermined relationship with the coupling nut when the fitting has been initially pulled-up. The marking may be realized as a precision groove or recess machined into a surface. The groove can be made more easily visually perceptible such as by roughening, knurling or coloring the surface. The groove defines an edge at a precise position that corresponds to a predetermined axial displacement of the nut relative to the body for initial pull-up. The marking may also be formed with a precise dimension such as an axial length to provide a second edge that corresponds to a predetermined axial displacement of the nut relative to the body beyond initial pull-up for fitting assemblies that are remade.

Device for safeguarding a blister strip and enabling a tablet or the like to be dispensed from a respective housing on the blister strip, which is retained and protected within the device. This latter is formed from a single sheet of cardboard folded about the blister strip, the blisters of which extend through holes provided in a part of the sheet, in the other part of which there being provided breakable knurlings defining removable discs which are aligned with said holes to enable said discs to break with consequent detachment of said discs and expulsion of said tablets when the individual blisters of the blister strip are pressed with the finger of one hand.

The assembled axial cam knurled connection automatic assembling machine relates to an automatic connection equipment of assembled axial cam. The driving mechanism of said equipment is mounted on the top portion of the machine frame, it utilizes motor, gearbox and driving gear connected with nut on the ballscrew to drive ballscrew and make it upward and downward move, said ballscrew is connected with slide block sliding on the leaner guideway, the clamp rotating mechanism includes oil cylinder, oil cylinder outer cover fixed on the slide block and clamping chuck placed in the lower end of oil cylinder, on the cylinder a driving gear driven by motor is fixed, its liftout guide mechanism is a hydraulic oil cylinder fixed on the machine frame base seat, said liftout guide bar is connected with piston, and can be freely rotated.

A paper cup cover and a processing technology thereof are characterized in that the paper cup cover is of an integrated structure; the processing technology of the paper cup cover comprises the steps of material taking, compression molding, bottom folding and knurling; the structure of the paper cup cover comprises a circular top part and an annular side part surrounding the bottom; a step is formed in the middle section of the annular side part; and the bottom of the annular side part is provided with a flanging which is folded inwards and tightly attached to the inner wall of the annular side part. The paper cup cover and the processing technology thereof have the advantages that the paper cup cover is integrally formed, the structure and the processing technology are simple, and the paper cup cover can be matched with a paper cup better.

The invention discloses a folding grip shield. The middle of the back of the shield is provided with a buffer layer; the buffer layer is adhered to the shield by adhesive; the upper left side of the buffer layer is provided with a longitudinal fixing band; the right side of the buffer layer is provided with two longitudinal fixing brackets; a grip is fixedly connected with the fixing brackets by a rotary long joint, a rotary short joint and a rotary pin; the rotary short joint can rotate in the C-shaped groove of the corresponding fixing bracket around the rotary pin; a junction of the top of the grip and the rotary short joint is provided with a knurling non-return sleeve; the knurling non-return sleeve can rotate to the notch of the C-shaped groove of the corresponding fixing bracket and compress to fix the grip; the bottom of the grip is in threaded connection with the rotary long joint; the rotary long joint can rotate in the C-shaped groove of the corresponding fixing bracket around the rotary pin. The folding grip shield has the advantages of reasonable structure, flexibility in use, storage space saving and transportation cost saving, the wrist position of a user can be protected, and the angle of the grip can be regulated according to the habits of the user.