Law Edward, Moore James H: Solid waste separating method and classification of material. National Recycling, Jeffers Albert L, Rickert Roger M, February 5, 1974: US3790091 (63 worldwide citation)

A method for separating solid waste material into identifiable classifications by recycling the solid waste material obtained from industrial or domestic source through a number of devices which reduces the solid waste material to a uniform workable particle size; separating the presized particles b ...

James W Derrick, L Charles Matsch: Derrick Manufacturing Corporation, Joseph P Gastel, August 15, 1989: US04857176 (62 worldwide citation)

A molded polyurethane vibratory screen including a body having opposite side edge portions, upper and lower edge portions, an upper surface and a lower surface, a plurality of major and minor substantially parallel ribs extending between the upper and lower edge portions and substantially parallel t ...

William R Tolbert, Joseph Feder, Charles Lewis Jr: Static cell culture maintenance system. Monsanto Company, Scott J Meyer, James W Williams Jr, August 27, 1985: US04537860 (62 worldwide citation)

A method and apparatus for maintaining animal cells in vitro in a substantially arrested state of proliferation with continuous secretion of cell product is disclosed. The cells are retained within a reactor vessel chamber in a semi-rigid matrix having interstices for passage of fluid nutrient mediu ...

Manfred Franz Axel Freissle: Replacable screen with frame. Screenex Wire Weaving Manufacturers, September 14, 1976: US03980555 (58 worldwide citation)

The invention relates to a wear-resistant element in the form of a screen or a lining which has protrusions by means of which the element may be replaceably secured to a support frame. The wear-resistant element is moulded in a synthetic plastics material such as polyurethane.

John J Picioccio, Steven D Kienitz, Warren R Kitchen, Joseph E Rossi, William C Haase, Allison T Ono, Wayne R Hinkle: Method and apparatus for automatic bulk vending. Mars Incorporated, Fish & Richardson P C, November 11, 1997: US05685435 (57 worldwide citation)

An automatic bulk vending machine is described including specific details as to various aspects of accurate volumetric dispensing, the separation of small broken pieces or fines from the dispensed product, and the easy and sanitary loading of such a machine. Further details as to how to provide a hi ...

William W Derrick, John J Bakula: Screen assembly for vibrating screening machine. Derrick Manufacturing Corporation, Joseph P Gastel, May 23, 1995: US05417858 (57 worldwide citation)

A screen assembly for a vibratory screening machine including a frame in the nature of a plate having spaced apertures therein, spaced frame members on opposite sides of the apertures, a screen formed in an undulating shape having substantially parallel ridges with downwardly sloping sides, troughs ...

Gene A Huber: Sweco Incorporated, Lyon & Lyon, April 15, 1986: US04582597 (56 worldwide citation)

A vibratory screen structure which is rectangular in plan employing pretensioned screen panels and a pneumatic tube seal beneath the panels. Restraining members are positioned on two sides of the screen panels to hold the screen frames in position on the pneumatic tubes when sealed. The remaining si ...

John J Bakula: Derrick Manufacturing Corporation, Joseph P Gastel, May 23, 1995: US05417793 (54 worldwide citation)

A screening screen assembly for a vibratory screening machine including an apertured plate, and a bonded subassembly of an undulating support screen and fine screening screen and finer screening screen bonded to each other by a fused plastic grid and bonded to the apertured plate. A method of fabric ...

Kenneth W Seyffert: Shale shaker and screen. Environmental Procedures, Guy McClung, February 28, 1995: US05392925 (54 worldwide citation)

A vibratable shale shaker screen is disclosed which in one aspect, has a frame, screening material secured over the frame, and one or more sealing members secured to the frame for sealingly contacting an adjacent frame and/or adjacent portions of the frame or of screen mounting apparatus such as mou ...

Albert Wilson: Vibrating screen with self-supporting screen cloth. Litton Systems, Morris I Pollack, April 19, 1983: US04380494 (54 worldwide citation)

A plurality of truss-like supports are secured, as by welding, and in spaced relationship, to the underside of a screen cloth. The supported screen cloth is then removably secured in position in a vibrating frame to form therewith a vibrating screen. Each truss-like support includes a support rod fo ...