Weighing scales – Weigher responsive material control – Discharge valve or gate
Patent
1997-06-27
2000-05-02
Gibson, Randy W.
Weighing scales
Weigher responsive material control
Discharge valve or gate
177253, 222148, 414326, G01G 1318, G01G 2122
Patent
active
06057514&
ABSTRACT:
A gravimetric weigh scale blender having a plurality of hoppers 41, 42 and 43 discharging into a weigh chamber 14. The hoppers are funnel-shaped, each terminating in a discharge opening which permits flow of material from the hopper through a metering device 19 or 38 into a weigh chamber 14. Two of the hoppers are mounted for horizontal sliding displacement in the frame of the blender and a valve is provided at the bottom of each hopper to automatically close the hopper when it is moved horizontally. The valve consists of a shoe 53 slidable on the bottom of the funnel of the hopper to be operated by a saddle 51 on the frame so as to allow flow through the opening when the hopper is in its operating position but is displaced to close the opening when the hopper is moved away from the operating position. An improved metering device is also disclosed which comprises an auger device 70 which includes a trough 71 pivotally mounted under one of the hopper openings for pivotal movement between an operative position adjacent the opening and a clean-out position remote from the opening. An auger is provided in the trough which may be driven at the desired speed to provide a positive metered flow through the trough from the hopper's discharge opening into the weigh chamber.
REFERENCES:
patent: 2161190 (1939-06-01), Paull
patent: 3348848 (1967-10-01), Lucking et al.
patent: 3959636 (1976-05-01), Johnson et al.
patent: 3985262 (1976-10-01), Nauta
patent: 4026442 (1977-05-01), Orton
patent: 4108334 (1978-08-01), Moller
patent: 4148100 (1979-04-01), Moller
patent: 4354622 (1982-10-01), Wood
patent: 4402436 (1983-09-01), Hellgren
patent: 4454943 (1984-06-01), Moller
patent: 4525071 (1985-06-01), Horowitz et al.
patent: 4581704 (1986-04-01), Mitsukawa
patent: 4705083 (1987-11-01), Rossetti
patent: 4756348 (1988-07-01), Moller
patent: 4793711 (1988-12-01), Ohlson
patent: 4830508 (1989-05-01), Higuchi et al.
patent: 4850703 (1989-07-01), Hanaoka et al.
patent: 5110521 (1992-05-01), Moller
patent: 5116547 (1992-05-01), Tsukahara et al.
patent: 5132897 (1992-07-01), Allenberg
patent: 5143166 (1992-09-01), Hough
patent: 5148943 (1992-09-01), Moller
patent: 5172489 (1992-12-01), Moller
patent: 5225210 (1993-07-01), Shimoda
patent: 5261743 (1993-11-01), Moller
patent: 5285930 (1994-02-01), Nielsen
patent: 5340949 (1994-08-01), Fujimura et al.
patent: 5341961 (1994-08-01), Hausam
patent: 5423455 (1995-06-01), Ricciardi et al.
patent: 5651401 (1997-07-01), Cados
patent: 5767453 (1998-06-01), Wakou et al.
patent: 5767455 (1998-06-01), Mosher
patent: 5780779 (1998-07-01), Kitamura et al.
patent: 5843513 (1998-12-01), Wilke et al.
Sheet of 2 photographs of Mould-Tek gravimetric blender, circa 1993.
Sheet of 2 photographs of Motan gravimetric blender and feeding system with Maguire Products, Inc. controls, circa 1993.
Sheet of 3 photographs of UNA-DYN gravimetric blender, circa 1993.
Sheet of 2 photographs of Maguire Products, Inc. gravimetric blender with Conair hoppers and feeding system, circa 1993.
Sheet of 1 photograph of Hydracolor gravimetric blender, circa 1993.
Advertisement entitled "Machinery and Systems for Extrusion is Our Only Business" by Process Control Corporation, circa 1993.
Advertisement entitled "Weigh Blender Delivers Unmatched Accuracy" by Universal Dynamics, Inc., circa 1993.
Advertisement entitled "A Full Line-up of Blender Solution . . . Priced Right!" by HydReclaim, circa 1993.
Advertisement entitled "New from HydReclaim--Now Processors Can Economically Achieve Continuous Gravimetric Blending" by HydReclaim, circa 1993.
Article entitled "Control Loading Systems" from Plastics Technology, Oct. 1995, p. 41.
Advertisement "Introducing our 400 VME-II Gravimetric Blender" by HydReclaim Corporation, circa 1993.
Four page brochure entitled "Gravimix Better Quality through Research", circa 1993.
Four page brochure entitled "Conomix Plus Volumetric Blender" dated Aug. 1993.
Four page brochure entitled "Conair Franklin Autocolor Y Mezclador" dated Mar. 1995.
Two-sided flyer entitled "GB 140 Series Compact Auto Weigh Blender" published by Conair Franklin in the United States, Jun., 1994.
Six page brochure entitled "Graviblend Precise Continuous Weigh Blenders" published by Ktron Vertech, Jun., 1991, United States.
Six page brochure entitled "Piovan Gravimetric Blenders MDW" published by Piovan Srl, Oct. 1993, Venezia, Italy.
One page flyer entitled "Gravimix, The New Gravimetric Blending Generation" published by Ferlin, De demsvaard, Holland, circa 1993.
Four page brochure entitled "When you Weigh it All Up . . . " published by Ferlin Trading, Holland, circa 1993.
Thirty-two page catalog entitled "Maguire Color Blending Equipment" published by Maguire Products, Inc., 1993, United States.
Two page brochure entitled "Mould-Tek Bulk Handling Systems" published by Mould-Tek Industries, Inc. in Canada, circa 1993.
Brochure entitled "Plastic Molders and Extruders:" published by Maguire Products, Inc., 1995.
Gibson Randy W.
Quinn Charles N.
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