Browsing U.S. Classifications

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  • 425: PLASTIC ARTICLE OR EARTHENWARE SHAPING OR TREATING: APPARATUS
    • 425/406: PRESS FORMING APPARATUS HAVING OPPOSED PRESS MEMBERS
      • 425/412: Male shaping member and female mold
        • 425/419: Including means varying pressure of male shaping member during pressing

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Apparatus for pressing ceramic powders U.S. Patent US6305925 | Filed: 07/29/1998 | Issued: 10/23/2001 Assignee(s): Sacmi- Cooperative Meccanici Imola - Soc. Coop. A.R.L. | Inventor(s): Giuseppe Cassani | Agent(s): Birch, Stewart, Kolasch & Birch, LLP | Examiner(s): Nam Nguyen In a method for pressing ceramic powders comprising a powder compaction stage within a mould, after exerting the powder compacting pressure the powder is subjected to close-together pressure pulses...

Apparatus for producing moldings from concrete U.S. Patent US4545754 | Filed: 03/08/1984 | Issued: 10/08/1985 Assignee(s): Rampf Foreman GmbH | Inventor(s): Joachim Scheidt + 1 | Agent(s): Spencer & Frank | Examiner(s): Flint, Jr.; J. Howard An apparatus for producing moldings (48) from concrete et cetera, particularly concrete paving stones, the top side of which exhibits partial surfaces of different vertical level, comprises a moldi...

Compression molding apparatus U.S. Patent US5698240 | Filed: 05/14/1996 | Issued: 12/16/1997 Assignee(s): Kabushiki Kaisha Mitsuishi Fukai Tekkosho | Inventor(s): Hisoshi Haguchi | Agent(s): Armstrong, Westerman, Hattori, McLeland & Naughton | Examiner(s): Jay H. Woo A compression molding apparatus adaptable for instantaneously applying a large pressurizing force in the final stage of compression molding having a simple design and at low cost. A gear is provide...

Plant for forming ceramic tiles, including those of large dimensions, by means of a partially isostatic molds U.S. Patent US6309206 | Filed: 11/29/1999 | Issued: 10/30/2001 Assignee(s): Sacmi-Cooperativa Meccanici Imola-Soc Coop. A.R.L. | Inventor(s): Giuseppe Cassani | Examiner(s): Nam Nguyen A plant for forming ceramic tiles by means of a partially isostatic mold, comprising the following stages: loading the ceramic powder to be pressed into the mold cavity; exerting a uniform pressure...

Apparatus for making cheese U.S. Patent US4045152 | Filed: 09/02/1975 | Issued: 08/30/1977 Assignee(s): Kusel Equipment Company | Inventor(s): Harold J. Peterson + 1 | Agent(s): James E. Nilles An apparatus for filling cheese hoops with curd and for compressing the curd to form a finished cheese. The invention includes a hoop cart for supporting a plurality of generally cylindrical cheese...

Direct-pressure type mold clamping mechanism U.S. Patent US4968239 | Filed: 02/17/1988 | Issued: 11/06/1990 Assignee(s): Fanuc Ltd. | Inventor(s): Yoshiharu Inaba + 2 | Agent(s): Staas & Halsey A motor-operated, direct-pressure type mold clamping apparatus is capable of high-speed mold closing and opening operations and of producing a required mold clamping force, without the use of a lar...

Direct-pressure mold clamping mechanism U.S. Patent US4929165 | Filed: 04/06/1989 | Issued: 05/29/1990 Inventor(s): Yoshiharu Inaba + 2 A motor-operated, direct-pressure type mold clamping mechanism capable of high-speed mold closing and opening operations and of producing a required mold clamping force, without the use of a large-...

Method and apparatus for hydraulic pressing U.S. Patent US5158723 | Filed: 12/06/1990 | Issued: 10/27/1992 Assignee(s): Ulrico Walchhutter + 1 | Inventor(s): Ulrico Walchhutter + 1 | Agent(s): Wolf, Greenfield & Sacks A hydraulic device is described which operates with an open hydraulic circuit. The device includes a positive-displacement pump for driving hydraulic fluid. An actuation motor having a flywheel is ...

Clamping mechanism in an injection molding machine U.S. Patent US4981426 | Filed: 10/27/1988 | Issued: 01/01/1991 Inventor(s): deceased; Katashi Aoki | Agent(s): Ostrolenk, Faber, Gerb & Soffen A clamping mechanism which includes a cylinder and a piston. The diameter of the piston is less than the internal diameter of a rear chamber of the cylinder such that fluid flows around the piston ...

Forming tool U.S. Patent US6443724 | Filed: 10/20/2000 | Issued: 09/03/2002 Assignee(s): SKF Nova AB | Inventor(s): Jonas Jerklind + 1 | Agent(s): Burns, Doane, Swecker & Mathis, L.L.P. | Examiner(s): Nam Nguyen A forming tool has a die with a seat for receiving material to be formed, an upper punch axially movable into and out of the seat from one side of the die, a lower punch axially movable into and ou...

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