子分类：
| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 81 | Manufacturing process to make a valve ball | US10852564 | 2004-05-25 | US06899599B1 | 2005-05-31 | Chiang Hsiang-Hui |
| A manufacturing process to make a ball valve of the present invention includes the following steps: a) prepare flat circular metallic plates each of which has a rectangular indentation in a circumference; b) mold those plates into bowl shape; c) remove the circular bottom of the bowl shapes to reform a hemi-spherical shape by another mold; d) weld each pair of the hemi-spherical shapes into a spherical shape each of which has a pair of aligned openings and a lateral rectangular through hole; e) trim and grind the uneven connection seam; and f) polish and smooth the outer surface to finished a qualified ball valve which has uniform arc and thickness. | ||||||
| 82 | Workpiece-bore processing apparatus and method | US314293 | 1994-09-30 | US5524464A | 1996-06-11 | Takafumi Asada; Masato Morimoto |
| A plurality of processing balls with different outer diameters are prepared at a slidable or rotatable upper stage. One ball, selected from the plurality of prepared balls in correspondence with the inner diameter of a bore of a workpiece, is inserted through the bore while being pressed by a pin. | ||||||
| 83 | Method and apparatus for trimming forgings | US433229 | 1982-10-07 | US4463637A | 1984-08-07 | Ralph D. Delio; Donald J. Diemer |
| A forging (A) is received in a split ring (B) which provides peripheral support to a forging peripheral wall (14) and an upper peripheral flange (16). The forging and the split ring are supported by a nest member assembly (C) as a trimming assembly (D) moves longitudinally to trim the forging flange and a forging bore (10). A punch (74) with a hardened cutting edge (80) moves axially through the forging bore and interacts with a nesting assembly cutting edge (60) to trim the bore. Concurrently, a trim die (90) having a cutting edge (96) interacts with a split die cutting edge (36) trimming the upper flange. The split ring restrains a central portion of the forging from puffing peripherally outward in response to the punch being urged therethrough. The interaction of the trim die and the split ring inhibits the upper part of the forging adjacent the upper flange from being drawn in toward the forging bore by the interaction between the punch and forging. In this manner, the forging bore and flange are trimmed concurrently and deformation of the forging is restrained. | ||||||
| 84 | Roller for supporting material sensitive to radiation and, method of making the same | US352004 | 1982-02-24 | US4449278A | 1984-05-22 | Erwin Geyken; Horst Koninger; Gunter Schirk |
| A roller for transporting and/or squeezing sheet-like photographic material has a metallic tubular core. The core has a cylindrical central portion of relatively large diameter and a pair of cylindrical ends of smaller diameter which constitute journals for the roller. The journals merge into the central portion via respective conical transition portions which widen in the direction from the corresponding journal to the central portion. The central portion and transition portions are surrounded by an annular coating of rubber or a synthetic resin. The core is produced by swaging the ends of a tube having the same diameter as the central portion of the core so as to form the journals and the transitions portions. The core obtained in this manner is coated by extruding or injection molding a synthetic resin, or by vulcanizing rubber, on to the same. The roller is lightweight, stable and inexpensive to manufacture. | ||||||
| 85 | Method of making flanged track tractor roller for off-highway equipment | US311003 | 1981-10-13 | US4413496A | 1983-11-08 | Donald J. Diemer; Ralph D. Delio |
| A method of forging track tractor rollers and other multi-flanged rollers, which comprises busting of a billet to a preformed coned end and placing a split ring around the coned end of the busted and preformed billet, and inserting the same in a stepped blocking die to form flanges by blocking against the split ring and the stepped die for one flange and between the top die on the other flange and removing the split ring and billet. When placed in a finishing die, the hollow of the roller is formed by a displacement method which forces the metal into the flanges against the split ring. | ||||||
| 86 | Press for producing machine elements, especially balls, rivets and the like | US855954 | 1977-11-29 | US4208899A | 1980-06-24 | Wilhelm Pieper |
| A press for producing machine elements, such as balls, rivets and the like, especially machine elements of relatively small dimensions, e.g. balls having a diameter of 1 mm, from wire sections, which includes a wire intake device, a device for shearing off the wire, a device for conveying the wire sections to and in front of a stationary matrix, and a punch associated with the matrix and adapted to be reciprocated back and forth in axial direction with regard to the matrix. If desired, there may also be provided ejectors for the punch or the matrix. The punch is, axially with regard to the matrix, movably guided in a tool carrier which in pressing direction is stationarily arranged in the machine frame. Furthermore, the punch is drivingly connected to a rotatable cam disc through the intervention of a pick-up roller. | ||||||
| 87 | Eccentric press | US705726 | 1976-07-15 | US4023393A | 1977-05-17 | Klaus Messerschmidt |
| A press for forming articles such as sphere-like objects and the like from workpieces includes a frame having two fixed mating dies mounted thereon and a crankshaft rotatably mounted on said frame, the crankshaft having crank arms actuating movable dies. A stationary shearing bushing means is disposed between the two fixed dies, and means are provided for feeding an elongated rod to the shearing bushing means. The shearing bushing means has an entry side and an exit side, and a movably mounted shearing knife means mounted on the entry side of the shearing bushing means is operable to cut blanks from the elongated rod. A feeding means is movably mounted on the exit side of the shearing bushing means and is operable to simultaneously receive a cut blank at the exit side of the shearing bushing means while delivering another cut blank to one of the fixed dies. | ||||||
| 88 | Reciprocating press | US545062 | 1975-01-29 | US3972216A | 1976-08-03 | Klaus Messerschmidt |
| A reciprocating press for shaping or forming a workpiece such as a sphere or the like includes two oppositely reciprocally movable dies mating with two fixed dies. A feed mechanism reciprocal in a lateral direction is operable to shear off workpieces from an elongated rod and to feed the sheared off workpieces to the fixed dies as the movable dies move in opposite directions. | ||||||
| 89 | Manufacture of solid metal spherical articles | US516017 | 1974-10-18 | US3965549A | 1976-06-29 | William Melville |
| Method and apparatus for making lead shot by barrel tumbling a charge of non-spherical preforms in a liquid coolant, involving the evaporation and condensing of the coolant while the preforms are progressively deformed to spherical shape. | ||||||
| 90 | Method and device for cold-forming rolling elements | US37512273 | 1973-06-29 | US3899912A | 1975-08-19 | ORAIN MICHEL |
| A method for cold-forming rolling elements in the form of bodies of revolution with external rolling surfaces having straight or curved generatrices extending between portion of relatively large and relatively small diameter uses a generally cylindrical blank. The diameter of the blank is substantially equal to the greatest diameter of the element to be formed. The blank is forced into a die cup having an internal profile which is identical to the rolling surface profile, against a counter-force which increases as the blank is forced into the cup. The penetration of the blank into the cup is halted at a predetermined stage. The invention is applicable to forming bearing rollers.
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| 91 | Method of fabricating hollow balls for use in rolling contact bearing applications | US3774280D | 1972-07-18 | US3774280A | 1973-11-27 | EKLUND P; CAMPBELL G |
| Means for fabricating a seamless hollow ball by initially spinforging a metal tube into a non-spherical structure that is hollow and closed except for a pair of equatorial or diametral openings, and thereafter simultaneously and progressively shaping the initially formed structure into a spherical hollow ball and eliminating the openings by a controlled plastic deformation resulting from pressure or forge-welding the structure by the application thereto of a series of hot forging operations.
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| 92 | Cold die casting malleable metals | US32071563 | 1963-11-01 | US3333455A | 1967-08-01 | RATTE LEON J; RATTE ROBERT W |
| 93 | Ball and shot manufacture by impacting process | US22022262 | 1962-08-29 | US3204320A | 1965-09-07 | ECKSTEIN GEORGE R; FOOTE DONALD S |
| 94 | Particle smoothing apparatus | US19811450 | 1950-11-29 | US2816466A | 1957-12-17 | GLADFELTER WILTIE I; GARVER RALPH R |
| 95 | Method of making metal balls | US13741850 | 1950-01-07 | US2614317A | 1952-10-21 | EMIL DEUSSEN |
| 96 | Pull pointing machine | US78432347 | 1947-11-06 | US2510788A | 1950-06-06 | ERNEST WILLETT |
| 97 | Method of making balls | US34110040 | 1940-06-18 | US2313876A | 1943-03-16 | ULRICH JELINEK |
| 98 | Cut-off mechanism for heading machines | US54026631 | 1931-05-27 | US1857997A | 1932-05-10 | BRENNAN CHARLES T |
| 99 | Manufacture of rollers for roller bearings | US60673922 | 1922-12-13 | US1701736A | 1929-02-12 | TIMKEN HENRY H |
| 100 | Roll-making machine | US67104323 | 1923-10-26 | US1640964A | 1927-08-30 | OSWALD SCHLAUPITZ; WILLIAM SCHUM |
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