Patents Assigned to Nalge Company
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Patent number: 5603436Abstract: A dispensing container including a receptacle portion for holding liquids and an upper opening having a closure device. The closure device is embodied in threaded cap which closes a relatively large opening in the top of the receptacle portion for filling purposes. The closure device includes a spout connected to the threaded cap for sliding movement between open and closed positions. The spout includes a plug member having a resilient static sealing element. A tubular closure element is secured to the threaded cap and includes a plug bore which receives the plug member and further defines a fluid flow path. A resilient dynamic sealing element is disposed on an outer surface of the tubular closure element and the dynamic sealing element is in continuous contact with an inner surface of the spout during sliding movement thereof.Type: GrantFiled: January 12, 1995Date of Patent: February 18, 1997Assignee: Nalge CompanyInventors: Richard A. Leoncavallo, Peter K. Baird, Mark Giverc, Ravi Mehra
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Patent number: 5391350Abstract: A sterilizable system and method for sterilizing containers in an autoclave. The system includes a container, closure bag, and fastener. The closure is placed in the interior of the bag, and the opening of the container is put into the interior of the bag through the bag's opening. The closure and container are kept in non-sealing relationship, and the sterilizable system is completed by fastening the opening of the bag around the container with the fastener. Once the system is sterilized, the user seals the container and closure by grasping the bag and manipulating the closure into sealing relationship with the container. The user then removes the fastener and bag, leaving a sterilized container.Type: GrantFiled: March 9, 1994Date of Patent: February 21, 1995Assignee: Nalge CompanyInventor: Jeffrey R. Wagner
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Patent number: 5328058Abstract: The present invention is a dropper bottle assembly (30) with a dispensing closure (34) having a base (48) adapted to be secured to the bottle 32) and an elongated dropper spout (64) extending from the base (48) to a distal open end (72) and with a separate cap (36, 236) defining a cavity (76) sized to receive the spout (64) therein wherein the cap (36, 236) and closure (34) share cooperating hinge (80, 84) and lock structures (130, 132, 264) for pivotably mounting the cap (36, 236) about a fixed axis and locking the cap (36, 236) closed with the spout opening (72) closed off. The lock (130) and hinge (84) structure are formed on the spout (64) below the opening (72) thereof but spaced from the closure base (48).Type: GrantFiled: September 8, 1993Date of Patent: July 12, 1994Assignee: Nalge CompanyInventors: Richard A. Leoncavallo, Ravinder C. Mehra, Gregory R. Phillips
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Patent number: 5246145Abstract: A dropper bottle assembly with a dispensing closure having a base adapted to be secured to the bottle and an elongated dropper spout extending from the base to a distal open end and with a separate cap defining a cavity sized to receive the spout therein wherein the cap and closure share cooperating hinge and lock structures for pivotably mounting the cap about a fixed axis and locking the cap closed with the spout opening closed off. The lock and hinge structure are formed on the spout below the opening thereof but spaced from the closure base. The lock mechanism includes cooperating teeth and an index finger or a cooperating spring-arm and a grip bar. The spout is sealed by a surface of the cap or a compliant mat on that surface, the latter being held in place by a rib within the cap.Type: GrantFiled: February 26, 1992Date of Patent: September 21, 1993Assignee: Nalge CompanyInventors: Richard A. Leoncavallo, Ravinder C. Mehra, Gregory R. Phillips
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Patent number: 5080232Abstract: A rack and retainer for use with an existing rack for holding test tubes and similar like articles. The rack or retainer is provided with a projecting member for firmly holding in position a test tube or similar like article placed therein.Type: GrantFiled: May 17, 1991Date of Patent: January 14, 1992Assignee: Nalge CompanyInventors: Richard A. Leoncavallo, Gregory R. Phillips
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Patent number: 4993263Abstract: A plastic hydrometer of the constant mass variable displacement type. The hydrometer includes a separate bulbous section, stem and cap. The bulbous section is a single piece molded part having an upper end which mates with the lower end of the extruded tube.Type: GrantFiled: May 19, 1989Date of Patent: February 19, 1991Assignee: Nalge CompanyInventors: Ravinder C. Mehra, Paul V. Comeau
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Patent number: 4902270Abstract: A centrifuge tube assembly comprising a centrifuge tube and an inserter for placement within the neck portion of the centrifuge tube. The insert has a rigid portion and pliable portion.Type: GrantFiled: October 3, 1988Date of Patent: February 20, 1990Assignee: Nalge CompanyInventors: Paul V. Comeau, Richard A. Leoncavallo
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Patent number: 4898278Abstract: A plastic container for hoding an array of vials or other like articles. The container has a base potion and a top cover for placement thereon. The base portion is provided a divider defining a plurality of openings for receiving and maintaining in position a plurality of vials or other like artivles. The divider is provided with indica for identifying the position of the vials.Type: GrantFiled: September 19, 1988Date of Patent: February 6, 1990Assignee: Nalge CompanyInventors: Richard A. Leoncavallo, Linda J. Kover, Gregory R. Phillips
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Patent number: 4861466Abstract: A pressure filter assembly having a bleed valve assembly for releasing trapped gas from with the filter chamber in a controlled manner. The bleed valve assembly includes a stem secured to the filter assembly having a bore therethrough for communication with the filter chamber and a cap for controlling the release of trapped gas within the filter chamber. The cap has a plunger with a contact surface which mates with a portion of the inside surface of the stem bore and an extension which fits with a narrow portion of the bore.Type: GrantFiled: April 14, 1988Date of Patent: August 29, 1989Assignee: Nalge CompanyInventors: Richard A. Leoncavallo, Gregory R. Phillips, Ravinder C. Mehra
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Patent number: 4858776Abstract: A plastic bottle closure assembly comprising a plastic bottle having a threaded neck portion, a closure for engagement with the neck portion and a sealing plug. The sealing plug has an annular mating surface designed to engage an annular planer mating surface of the neck portion. The closure is provided with annular rib for engaging the plug so as to cause the inner mating surface of the plug to engage the mating section of neck portion of the bottle.Type: GrantFiled: November 3, 1988Date of Patent: August 22, 1989Assignee: Nalge CompanyInventor: Ravinder C. Mehra
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Patent number: 4772418Abstract: A container comprising a top cover for placement on a base support. The top cover may be placed in a first position on the base support to allow steam or gas to enter within the container and a second position for providing a seal between the cover and base support.Type: GrantFiled: October 1, 1986Date of Patent: September 20, 1988Assignee: Nalge CompanyInventor: Richard A. Leoncavallo
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Patent number: 4771900Abstract: A storage rack for holding a plurality of substantially box-like containers. The rack is provided with a plurality of independent locking members, one associated with a single box-like container. The locking member may be rotated in and out of a locking position.Type: GrantFiled: April 9, 1987Date of Patent: September 20, 1988Assignee: Nalge CompanyInventors: Richard A. Leoncavallo, Gregory R. Phillips
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Patent number: 4730730Abstract: A package and method of packaging and dispensing a plurality of bottles or other like articles. The packages include a tray for supporting a plurality of bottles and a band around the perimeter of the bottles. A shrink wrap is placed around the bottles, band and tray. The tray is filled by placing the open edge adjacent the exit port of shaker dispensing table. The bottles are dispensed from the tray by moving the band to cause the bottles to slide over the open edge of the tray onto a receiving table.Type: GrantFiled: January 21, 1987Date of Patent: March 15, 1988Assignee: Nalge CompanyInventor: Walter J. Clarkson
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Patent number: 4702834Abstract: A plastic filterware having a filter membrane consisting essentially of cellulose nitrate welded to a surface of a membrane support member.The weld can be substantially in the shape of a ring having a width of about 2.29 millimeters. The filterware can include an upper receiving chamber for receiving liquid to be filtered, a support member at the lower end of the receiving chamber and a lower receptacle below the support member of receiving filtrate.Type: GrantFiled: June 17, 1986Date of Patent: October 27, 1987Assignee: Nalge CompanyInventor: Robert G. Relyea
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Patent number: 4689147Abstract: A plastic filter assembly having an upper receiving container and a lower receiving container. Either the top or bottom container is provided with at least two recesses for receiving a locking pin in the container not having recesses. The recess has a first receiving portion and a locking portion. The locking pin has an angled engaging surface inclined with respect to longitudinal axis of the container.Type: GrantFiled: September 27, 1985Date of Patent: August 25, 1987Assignee: Nalge CompanyInventors: Richard A. Leoncavallo, Peter K. Baird, Ravinder C. Mehra, Sharad Rajguru
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Patent number: 4684344Abstract: An endodontic syringe for injecting thermoplastic material, such as gutta percha into a root canal cavity. The syringe includes a drive motor and mechanism for reversible axial translation of a plunger, a removable gutta percha cartridge and needle, and a heating element surrounding the cartridge to heat the gutta percha to a fluid condition. Forward movement of the plunger, against a piston within the cartridge, ejects gutta percha for the cartridge and needle. Reverse movement of the plunger returns it to its starting position, at which the used cartridge can be removed and replaced.The cartridge and needle are of aluminum or aluminum alloy.Type: GrantFiled: April 11, 1986Date of Patent: August 4, 1987Assignee: Nalge CompanyInventors: Charles E. Brockway, John J. Saeli
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Patent number: D297860Type: GrantFiled: October 18, 1985Date of Patent: September 27, 1988Assignee: Nalge CompanyInventors: Richard A. Leoncavallo, Peter K. Baird, Ravinder C. Mehra, Sharad R. Rajguru
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Patent number: D310264Type: GrantFiled: March 4, 1987Date of Patent: August 28, 1990Assignee: Nalge CompanyInventors: Richard A. Leoncavallo, Paul V. Comeau
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Patent number: D338830Type: GrantFiled: December 9, 1991Date of Patent: August 31, 1993Assignee: Nalge CompanyInventors: Richard A. Leoncavallo, Ravinder C. Mehra, Gregory R. Phillips
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Patent number: D358530Type: GrantFiled: January 14, 1994Date of Patent: May 23, 1995Assignee: Nalge CompanyInventors: Ravinder C. Mehra, Richard A. Leoncavallo, Mark Giverc