Capacity Adjustable Patents (Class 73/429)
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Patent number: 5325717Abstract: The measuring device has a bowl. The bowl's capacity is adjusted by a dam structure located within the bowl and attached to a cover structure slidably mounted on the bowl. The slidable cover extends beyond the bowl for use as a handle. The handle has a downwardly-directed extension which is used to support and stabilize the device when the device rests on a flat surface. The handle also has a rounded indentation at the junction between the extension and the handle, so as to reinforce the junction and provide for easily gripping the device. The sides of the bowl structure are flexible so that they can be squeezed together to release the cover so that the device can easily be disassembled and reassembled for cleaning. A detent structure is provided to locate the sliding dam at pre-marked measurement locations. The detent structure is centrally located to permit strengthening of the sliding attachment and reduce wear.Type: GrantFiled: November 30, 1992Date of Patent: July 5, 1994Assignee: Robbins Industries, Inc.Inventors: Rodney W. Robbins, E. Stanley Robbins, Frans M. Weterrings, Charles R. Hebner, John E. Watkins
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Patent number: 5211285Abstract: A telescoping, pharmaceutical mixing container (2) includes outer and inner containers (4, 6) telescopically mounted to one another with the inner end (16) of the inner container situated within the outer container. The inner container has a piston cap (28) mounted to it so to provide a piston-like seal between the inner and outer containers, and houses a piston (22) within its interior. The piston cap defines a flow path (32) between first and second variable volume regions (34, 36) within the inner and outer containers respectively. Reciprocating the inner container within the outer container causes the pharmaceutical (38) to pass through the flow path and between the variable volume regions and mix. The mixing container is preferably used with a metering assembly (52) including a metering stop (74), threadably positionable along the axis (25) of the mixing container, and a driver (70) secured to the inner container.Type: GrantFiled: March 19, 1992Date of Patent: May 18, 1993Assignee: Habley Medical Technology CorporationInventors: Terry M. Haber, William H. Smedley, Clark B. Foster
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Patent number: 5184753Abstract: An improvement in liquid measuring apparatus and method of the type in which a desired amount by weight of a liquid is measured by the placement of a corresponding volume of liquid in a liquid metering chamber compensates for changes in the density of the liquid resulting from variations in the temperature of the liquid in the metering chamber by selectively operating one or more of a plurality of separate incremental volume elements to establish changes in the volumetric capacity of the metering chamber in predetermined increments of volume corresponding to the predetermined volume of each of the selected separate incremental volume elements, the improvement further including selectively dispensing one or more fractions of the total amount of liquid in the liquid metering chamber to dispense the desired amount of liquid.Type: GrantFiled: September 20, 1991Date of Patent: February 9, 1993Inventor: Vladimir Horak
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Patent number: 5182948Abstract: The measuring container has a body with a bowl at one end. A sliding cover is provided with a sliding barrier member or dam which moves longitudinally in the bowl to different positions to adjust the capacity of the bowl. The sliding dam or barrier member has a cover which extends by a distance sufficient to cover the opening between the dam and the rear wall of the bowl at all positions of the barrier member so as to prevent materials from entering that opening.Type: GrantFiled: August 5, 1991Date of Patent: February 2, 1993Assignee: Robbins Industries, Inc.Inventors: E. Stanley Robbins, Rodney W. Robbins, Darrel J. Watt, Wendell G. Wilson
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Patent number: 5097704Abstract: The adjustable measuring device of the present invention has a housing containing an arcuate chamber guide having movable plates attached to it so as to define a metering chamber of variable size. The housing has a housing inlet at the top, communicating with a chamber inlet, and a housing outlet at the bottom, communicating with the metering chamber. An amount, predetermined by the size of the metering chamber, of material to be ground leaves a hopper, and enters the metering chamber through the housing inlet and the chamber inlet. The housing is slid, thereby closing the hopper, until the housing outlet is positioned over a grinding area. Then, the material is discharged into the grinding area to be ground.Type: GrantFiled: February 11, 1991Date of Patent: March 24, 1992Assignee: Bunn-O-Matic CorporationInventor: David F. Ford
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Patent number: 5092491Abstract: An apparatus for removing powder or lump materials from a storage vessel, obtaining a preselected volume of the material, returning any excess material to the storage vessel, and dispensing the obtained measured material. The apparatus contains a product-receiving part, a handle portion, and a transition area in the shape of a taper which tapers downwardly toward the handle, which transition area connects the product-receiving part with the handle. The handle comprises a tube which is closed by a movable piston. The tube may be marked to facilitate measuring the volume of the material.Type: GrantFiled: August 23, 1990Date of Patent: March 3, 1992Assignee: Nordmark Arzneimittel GmbHInventor: Ludwig Matz
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Patent number: 4488432Abstract: A measuring cup including a transparent open-ended cylinder and a metering piston mounted in the cylinder for longitudinal movement and rotational movement with respect to the cylinder. The piston includes an upper completely cylindrical measuring disc of diameter to contact the inner cylindrical surface of the cylinder. The piston also includes a lower interrupted guide disc in sufficient contacting relation to the inner surface of the cylinder to maintain the upper face of the upper disc at right angles to the axis of the cylinder. The piston includes an hourglass-shape spacer integral with both the upper and lower discs to fixedly space the discs from each other.Type: GrantFiled: June 20, 1983Date of Patent: December 18, 1984Inventor: Judith M. Bang
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Patent number: 4445627Abstract: Gravimetric apparatus is provided to mechanically adjust the internal capacity of a volumetric liquid dispensing cavity, such as a metering cavity, to compensate for decrease in density and expansion of said liquid at ambient temperatures above the temperature of maximum density of said liquid. The apparatus includes a liquid displacing member, preferably in the form of an elongated bar which is inserted into the liquid metering cavity to decrease the volumetric capacity thereof, and which may be moved manually or automatically inwardly or outwardly of the cavity to vary the capacity of the cavity in such a manner that it will always contain a volumetric charge of liquid having a weight equal to the same charge of liquid at its maximum density.Type: GrantFiled: October 5, 1981Date of Patent: May 1, 1984Inventor: Vladimir Horak
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Patent number: 4226341Abstract: A device which may be used with a liquid metering and dispensing spout, includes a fluid receptacle having an upstanding annular side wall extending from a bottom wall, forming a given volume. The side wall has vent projection protruding therefrom. A volume determining member axially slideable in the receptacle has a tapered resilient side wall which is radially inwardly compressed by and forms a seal with the inner surface of the receptacle side wall to form a settable bottom wall for the receptacle. The side wall of the member engages the vent projection during its insertion to permit entrapped gas to escape between the side walls as the member is slid to a predetermined volume position.Type: GrantFiled: January 18, 1978Date of Patent: October 7, 1980Assignee: Neil H. DowningInventors: Edward J. Towns, Edward M. Brown
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Patent number: 4166487Abstract: A dispensing and measuring device for dry particulate matter includes a container having a downwardly discharging outlet therein and a guideway port extending transversely therethrough beneath the outlet. A measuring scoop having a tapered forward end is adapted for insertion into the guideway port so as to be positioned immediately beneath the discharge outlet. A spring-biased closure plate disposed within the guideway port immediately beneath the outlet is guided by a slide member between guide rails longitudinally on either side of the outlet so that the closure plate is movable longitudinally of the guideway port to open and close the outlet, return springs being connected to the closure plate to maintain the closure plate in a normally closed position beneath the outlet.Type: GrantFiled: October 12, 1976Date of Patent: September 4, 1979Inventor: Henry J. Spies
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Patent number: 4154109Abstract: Measuring receptacle means comprising a plurality of cup members, each having an open top and bottom, with a removable bottom closure means in common with the cup members. Each cup member is of a different volume than the other cup members. Removable bottom plate means slidably closes the bottoms of the cup members such that the individual cup members are fillable with a measured material from the top when the bottom plate is in closure relation, and emptied from the bottom when the bottom plate is slidably removed.Type: GrantFiled: May 30, 1978Date of Patent: May 15, 1979Inventor: Shirley J. P. Kelson
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Patent number: 4116071Abstract: For measuring flowable materials, e.g. grain, flour, etc. which is sold loose in small quantities, the invention proposes a measuring container which has a progressively movable wall. Thus, its volume can be pre-adjusted for a particular material so that when full exactly to the brim, the contents weigh an exact amount, e.g. 1 lb.Type: GrantFiled: December 1, 1976Date of Patent: September 26, 1978Inventor: Gerald Paul Sakura
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Patent number: 4073192Abstract: An adjustable volume measuring cup in which the body of the cup is formed of clear plastic having a threaded opening in the axial center of the bottom thereof closed with a removable screw. A handle is threaded into the side of the cup and can be removed. A movable bottom of the cup is of cylindrical form and fits the internal diameter of the cup snugly so as to stay in position vertically in the cup when moved. The movable bottom has an axial threaded bore and the handle can be threaded into the threaded bore of the movable bottom by extending the handle through the opening left after removing the screw in the bottom of the cup so that the handle can then be used to move the movable bottom to a desired position within the cup in accordance with an external scale on the cup.The handle is provided with a screwdriver blade on its outer end for engaging the screw closing the opening in the bottom of the cup.Type: GrantFiled: June 16, 1976Date of Patent: February 14, 1978Inventor: Richard F. Townsend
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Patent number: 3943772Abstract: This invention describes a convertible measuring container that comprises three parts; an upper part, a bottom part, both of which can be removably joined and sealed to a central cylindrical part, all three parts being of the same internal diameter. A sight glass is provided for accurately reading the surface level of the liquid in the container. By making a plurality of interchangeable central cylindrical parts, all of which have the same sealing means, the volume of the container can be changed, at will, from any one to another of a selected number of different volumes.Type: GrantFiled: October 2, 1972Date of Patent: March 16, 1976Assignee: Signet Controls, Inc.Inventor: William D. Clinton
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Patent number: 3933272Abstract: This invention is a method and apparatus for dispensing a predetermined weight of liquid. The apparatus comprises a calibrated vessel having an elongated tubular section in open communication with the top of the vessel, means to fill the vessel to a level in the elongated tubular section, a displacement means which provides an area of reduced cross section at the liquid level in the tubular section, means to monitor the temperature of the liquid, means to adjust the position of the displacement means in response to temperature changes of the liquid and means to dispense the liquid. The apparatus can dispense a predetermined weight of liquid over a broad temperature range. The method comprises the steps necessary to dispense the predetermined weight of liquid.Type: GrantFiled: October 25, 1973Date of Patent: January 20, 1976Assignee: Stauffer Chemical CompanyInventors: Norman C. Lamb, Harvey T. Shank