Patents Assigned to Risdon Corporation
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Patent number: 4850516Abstract: A positive displacement dispenser for storing and dispensing viscous materials like toothpaste is disclosed. The dispenser has a longitudinally-extending housing having an upper surface and side surfaces defining a chamber for storing viscous material, a discharge orifice in the housing through which material is dispensed, a threaded rod having an axis extending longitudinally through the chamber, and a piston mounted on the threaded rod by means of a central threaded opening. The piston is advanced along the threaded rod toward the discharge orifice to dispense material from the chamber by depressing a pivotal lever attached to the upper surface of the housing. This causes a drive bar projecting from the lever to move within a plane and turn a rotatable wheel coaxial with the threaded rod.Type: GrantFiled: January 13, 1989Date of Patent: July 25, 1989Assignee: Risdon CorporationInventor: Richard H. Seager
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Patent number: 4777969Abstract: A cosmetic compact is described which houses a cosmetic preparation and applicator means in separate compartments. The cover of the compact is rotatable about the inner container and has an elongated slot which, upon rotation of the cover, is adapted to register with the receptacle containing the cosmetic preparation. Stimultaneously, an aperture in the cover registers with a corresponding opening in the compartment in which an applicator is stored and permits the latter to be released by appropriate tilting or like maneuvering of the compact. After use the applicator is returned to the storage compartment and the cover is rotated to return the compact to the closed position.Type: GrantFiled: November 26, 1985Date of Patent: October 18, 1988Assignee: Risdon CorporationInventor: Thomas F. Holloway
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Patent number: 4773553Abstract: An assembly for securing and sealing a dispenser, such as a pump or valve, to a flanged container is disclosed. The assembly comprises a mounting cup having a generally cylindrical skirt around its periphery and a sealing collar including a sleeve having a diameter sized to receive the sidewall of the flange and sized to be encased by the mounting cup. The end portion of the sleeve, preferably a plurality of spaced tabs, is in the path of movement of the mounting cup and is deformed radially inwardly beneath the flange ledge thereby to secure the collar to the flange.Type: GrantFiled: May 12, 1987Date of Patent: September 27, 1988Assignee: Risdon CorporationInventor: Owen F. Van Brocklin
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Patent number: 4753373Abstract: The present invention is a positive displacement dispenser which is particularly useful in dispensing viscous materials such as toothpaste. This dispenser has a longitudinally-extending housing which defines a chamber for material to be dispensed, a discharge orifice in the housing through which the material is dispensed from the chamber, a threaded rod having an axis extending through the chamber, a piston with a threaded opening mounted on the rod so that rotation of the rod moves the piston, an actuating lever pivotally mounted to the housing, and a rotatable wheel operatively coupling the threaded rod and the actuating lever so that depression of the actuating lever causes the wheel to turn the threaded rod and advance the piston. The rotatable wheel is coaxially-mounted to the threaded rod and has a plurality of pins mounted on a circular path surrounding the axis of the wheel.Type: GrantFiled: April 15, 1986Date of Patent: June 28, 1988Assignee: Risdon CorporationInventor: Richard H. Seager
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Patent number: 4750501Abstract: An improved cosmetic applicator is described in which an inner tubular member has cam slots to guide lugs on a carrier. The carrier supports a cosmetic substance such as lipstick and is moved between retracted and exposed positions by the action of helical grooves in an outer tubular member. A cam slot in the inner tubular member is provided with elongate resilient and flexible elements located to restrict the passage of the carrier lugs into and out of off-sets that provide axial carrier locking positions. The lugs can be moved past the elements which flex in a manner that retains an even swivel torque. A rib is mounted on the inner tubular member so as to contact the carrier and impart an even drag thereto.Type: GrantFiled: November 18, 1986Date of Patent: June 14, 1988Assignee: Risdon CorporationInventors: Walter T. Ackermann, Robert L. Pierpont
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Patent number: 4702398Abstract: Solid or liquid products, such as deodorants are advanced for use and retracted for storage in a dispenser which includes a container, a product supporting cup slidably-mounted within the container, and a delivery mechanism to move the cup upwardly and downwardly within the container. The delivery mechanism which is integrally-formed from plastic with the cup includes a first arm and a second arm each of which have first and second ends connected by an intermediate hinge. The first ends of the first and second arms are connected to the cup with cup hinges. The first and second arms of the delivery mechanism are bent at their intermediate and cup hinges so that the first and second arms form a scissor arrangement with the first ends of the first and second arms crossing and the second ends of the first and second arms crossing. After the arms of the delivery mechanism are positioned in this scissor arrangement, the cup containing a product and the delivery mechanism are inserted into the container.Type: GrantFiled: January 24, 1986Date of Patent: October 27, 1987Assignee: Risdon CorporationInventor: Richard H. Seager
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Patent number: 4690578Abstract: The invention contemplates a cosmetic-container of the propel-repel variety wherein all parts are assembled and retained by interference-fit and wherein metal-to-plastic interfaces characterize essentially all siding engagements. The arrangement is such as to provide a luxury "feel" through controlled drag torque (resistance) to relative rotation of the parts. And provision is made to positively retain any retracted position of the pomade carrier, whatever the remaining useful extent of involved pomade.Type: GrantFiled: September 8, 1986Date of Patent: September 1, 1987Assignee: Risdon CorporationInventors: Eric J. Idec, Thomas F. Holloway
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Patent number: 4685596Abstract: A portable device is provided for dispensing fluid in a controlled manner, and, optionally, for mixing two or more fluid components prior to dispensing the resulting mixture. The device comprises a modified syringe provided with needle valve and associated cannula through which fluid is drawn into the syringe chamber and expelled therefrom in a controlled manner by appropriate movement of the piston. In a particular embodiment propellant gas is released behind the piston which, in sealing slidable engagement with the syringe cylinder, thereby exerts expelling pressure on the fluid in the cylinder chamber. The rate of expulsion of fluid from the chamber is regulated by adjustment of the needle valve. The device is especially adapted for mixing two or more liquid components of a periodontal composition and for controlled dispensing of the resulting composition at the locus to be treated.Type: GrantFiled: April 23, 1986Date of Patent: August 11, 1987Assignee: Risdon CorporationInventor: Harley H. Mattheis
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Patent number: 4676407Abstract: A mounting cap is disclosed for a container having a shoulder extending to a neck, a neck extending to a flange, an aperture surrounded by the flange, and a pump extending through the aperture, the pump terminating in an actuator button. The mounting cap comprises a cover and a sleeve, the sleeve extending from the cover and surrounding the flange and neck, and also means for mounting the sleeve to the container. In one modification, the mounting cap further comprises a collar extending upward and surrounding the pump. Also disclosed is a method for mounting such a cap onto the container.Type: GrantFiled: March 20, 1985Date of Patent: June 30, 1987Assignee: Risdon CorporationInventor: Gerald E. Rideout
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Patent number: 4674658Abstract: A device for mixing and dispensing fluid is disclosed and comprises first and second containers each having a valve for dispensing fluid. The valve is normally biased to a closed position and operable against said bias to an open position. Piston and cylinder elements define a chamber for receiving the fluids. The piston element is movable in response to dispensing of fluid into said chamber. The piston element is operably connected to the valves and exerts a force on the valves to maintain them in an open position. The mixed fluids in the chamber are thereafter dispensed through a handpiece.Type: GrantFiled: September 4, 1985Date of Patent: June 23, 1987Assignee: Risdon CorporationInventor: Owen F. Van Brocklin
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Patent number: 4606479Abstract: A pump for dispensing liquid from a container is disclosed and comprised a cylinder, and a piston having an interior chamber with a valve member disposed therein, the valve member having a cylindrical surface at one end portion thereof. An inlet valve is provided and includes a sleeve having a cylindrical surface having a diameter sized to frictionally engage, provide a liquid seal and slide with respect to the cylindrical surface of the valve member. The inlet valve sleeve seats upon an annular ring extending around the inlet opening of the cylinder and seals the interior chamber of the pump with respect to the container. In accordance with an aspect of the invention, the pump may be non-venting such that a vacuum builds in the container as liquid is dispensed, and a sealing collar is provided to seal the pump with respect to the container.Type: GrantFiled: April 16, 1984Date of Patent: August 19, 1986Assignee: Risdon CorporationInventor: Owen F. Van Brocklin
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Patent number: 4603989Abstract: The invention contemplates a cosmetic-container of the propel-repel variety wherein all parts are assembled and retained by interference fit and wherein metal-to-plastic interfaces characterize essentially all sliding engagements. The arrangement is such as to provide a luxury "feel" through controlled drag torque (resistance) to relative rotation of the parts. And provision is made to positively retain any retracted position of the pomade carrier, whatever the remaining useful extent of involved pomade.Type: GrantFiled: February 19, 1985Date of Patent: August 5, 1986Assignee: Risdon CorporationInventors: Walter T. Ackerman, Edward F. Klimeck
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Patent number: 4586519Abstract: A compact case for sealingly supporting and enclosing a cosmetic preparation. A receptacle for the cosmetic preparation is mounted on a lower cover by means of a flexible annular member which permits relative movement between the receptacle and the lower cover in both axial and radial direction. The receptacle includes a platform and a first annular rim which projects from the platform. An upper cover hinged to a lower cover for movement between open and closed positions includes a second annular rim fittingly engageable with the first annular rim when the upper cover is moved to the closed position. The receptacle has a flexible annular member of "V" or "U" shaped cross section around it to permit movement of the receptacle in vertical and horizontal directions. This movement accommodates the mating closure rim and assures that an effective circumferential seal is always obtained between the annular rims.Type: GrantFiled: October 22, 1984Date of Patent: May 6, 1986Assignee: Risdon CorporationInventors: David Seidler, Harley H. Mattheis
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Patent number: D280032Type: GrantFiled: August 13, 1983Date of Patent: August 6, 1985Assignee: Risdon CorporationInventor: Thomas F. Holloway
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Patent number: D280141Type: GrantFiled: August 31, 1983Date of Patent: August 13, 1985Assignee: Risdon CorporationInventor: Thomas F. Holloway
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Patent number: D282301Type: GrantFiled: September 23, 1983Date of Patent: January 21, 1986Assignee: Risdon CorporationInventor: Thomas F. Holloway
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Patent number: D283454Type: GrantFiled: September 23, 1983Date of Patent: April 15, 1986Assignee: Risdon CorporationInventor: Thomas F. Holloway
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Patent number: D284119Type: GrantFiled: August 31, 1983Date of Patent: June 3, 1986Assignee: Risdon CorporationInventor: Thomas F. Holloway
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Patent number: D285732Type: GrantFiled: March 11, 1983Date of Patent: September 16, 1986Assignee: Risdon CorporationInventor: Thomas F. Holloway
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Patent number: D290762Type: GrantFiled: June 10, 1985Date of Patent: July 7, 1987Assignee: Risdon CorporationInventor: Thomas F. Holloway