Patents by Inventor Richard W. Hanson
Richard W. Hanson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 6398225Abstract: An improved seal for a rotary valve for high temperature and high pressure fluids. A removable seal member adapted for disposition between a valve body and a valve member rotatably disposed in the valve body is provided. In one aspect of the invention, the seal member is adapted so that pressure exerted by the valve is sufficient to induce cold flow in the seal member. In another aspect of the invention, the seal member includes a pair of longitudinally disposed slots.Type: GrantFiled: September 17, 1998Date of Patent: June 4, 2002Assignee: DCI InternationalInventors: Richard W. Hanson, John C. Schmoegner
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Patent number: 6293792Abstract: A quick-connect syringe tip for use with a dental handpiece. The syringe tip resists rotation about an axis through the connection end, allowing retraction of a cheek or lip without changing the orientation of a discharge fluid stream.Type: GrantFiled: April 21, 2000Date of Patent: September 25, 2001Assignee: DCI International, Inc.Inventor: Richard W. Hanson
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Patent number: 6279782Abstract: A bottle for a dental rinse has a neck component provided with vertical and inclined channels to receive bayonet lock arms on a cap to lock the neck component to the cap. The bayonet arms project from a cap stem which is provided with an O-ring. Annular wall surfaces on the neck component alternately cooperate with the O-ring to seal and to vent the bottle during axial positioning of the neck component. The cap is mounted on a support and includes pressure and liquid carrying passageways in communication with the bottle.Type: GrantFiled: October 13, 2000Date of Patent: August 28, 2001Assignee: Dental Components, Inc.Inventor: Richard W. Hanson
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Patent number: 6268607Abstract: A dental office is provided with a system to purify air and/or water delivered to the operatory. Purification is by UV-C light applied to the utilities as they are transported from supply to delivery sites. Ideally, the system includes separate devices structured and arranged to effect purification of the ambient air circulating within the operatory; the water supplied to the operatory and the water delivered to and through dental hand pieces in connection with a procedure.Type: GrantFiled: November 25, 1998Date of Patent: July 31, 2001Assignee: DCI International, Inc.Inventors: Leonard Marsh, Michael Radicone, Richard W. Hanson
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Patent number: 6077835Abstract: Nucleic acids are compacted, substantially without aggregation, to facilitate their uptake by target cells of an organism to which the compacted material is administered. The nucleic acids may achieve a clinical effect as a result of gene expression, hybridization to endogenous nucleic acids whose expression is undesired, or site-specific integration so that a target gene is replaced, modified or deleted. The targeting may be enhanced by means of a target cell-binding moiety. The nucleic acid is preferably compacted to a condensed state.Type: GrantFiled: July 13, 1998Date of Patent: June 20, 2000Assignees: Case Western Reserve University, Ohio UniversityInventors: Richard W. Hanson, Jose C. Perales, Thomas W. Ferkol, Jr.
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Patent number: 6008336Abstract: Nucleic acids are compacted, substantially without aggregation, to facilitate their uptake by target cells of an organism to which the compacted material is administered. The nucleic acids may achieve a clinical effect as a result of gene expression, hybridization to endogenous nucleic acids whose expression is undesired, or site-specific integration so that a target gene is replaced, modified or deleted. The targeting may be enhanced by means of a target cell-binding moiety. The nucleic acid is preferably compacted to a condensed state.Type: GrantFiled: April 3, 1998Date of Patent: December 28, 1999Assignees: Case Western Reserve University, Ohio UniversityInventors: Richard W. Hanson, Jose C. Perales, Thomas W. Ferkol
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Patent number: 5877302Abstract: Nucleic acids are compacted, substantially without aggregation, to facilitate their uptake by target cells of an organism to which the compacted material is administered. The nucleic acids may achieve a clinical effect as a result of gene expression, hybridization to endogenous nucleic acids whose expression is undesired, or site-specific integration so that a target gene is replaced, modified or deleted. The targeting may be enhanced by means of a target cell-binding moiety. The nucleic acid is preferably compacted to a condensed state.Type: GrantFiled: February 12, 1997Date of Patent: March 2, 1999Assignees: Case Western Reserve University, Ohio UniversityInventors: Richard W. Hanson, Jose C. Perales, Thomas W. Ferkol
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Patent number: 5844107Abstract: Nucleic acids are compacted, substantially without aggregation, to facilitate their uptake by target cells of an organism to which the compacted material is administered. The nucleic acids may achieve a clinical effect as a result of gene expression, hybridization to endogenous nucleic acids whose expression is undesired, or site-specific integration so that a target gene is replaced, modified or deleted. The targeting may be enhanced by means of a target cell-binding moiety. The nucleic acid is preferably compacted to a condensed state.Type: GrantFiled: September 27, 1996Date of Patent: December 1, 1998Assignee: Case Western Reserve UniversityInventors: Richard W. Hanson, Jose C. Perales, Thomas W. Ferkol, Jr.
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Patent number: 5791825Abstract: An apparatus for building a horizontal underground barrier by cutting through soil and depositing a slurry, preferably on which cures into a hardened material. The apparatus includes a digging means for cutting and removing soil to create a void under the surface of the ground and injection means for inserting barrier-forming material into the void. In one embodiment, the digging means is a continuous cutting chain. Mounted on the continuous cutting chain are cutter teeth for cutting through soil and discharge paddles for removing the loosened soil. This invention includes a barrier placement machine, a method for building an underground horizontal containment barrier using the barrier placement machine, and the underground containment system. Preferably the underground containment barrier goes underneath and around the site to be contained in a bathtub-type containment.Type: GrantFiled: October 4, 1996Date of Patent: August 11, 1998Assignee: Lockheed Martin Idaho Technologies CompanyInventors: Bradley M. Gardner, Ann M. Smith, Richard W. Hanson, Richard T. Hodges
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Patent number: 5788422Abstract: An apparatus for building a horizontal underground barrier by cutting through soil and depositing a slurry, preferably one which cures into a hardened material. The apparatus includes a digging means for cutting and removing soil to create a void under the surface of the ground, a shield means for maintaining the void, and injection means for inserting barrier-forming material into the void. In one embodiment, the digging means is a continuous cutting chain. Mounted on the continuous cutting chain are cutter teeth for cutting through soil and discharge paddles for removing the loosened soil. This invention includes a barrier placement machine, a method for building an underground horizontal containment barrier using the barrier placement machine, and the underground containment system. Preferably the underground containment barrier goes underneath and around the site to be contained in a bathtub-type containment.Type: GrantFiled: October 4, 1996Date of Patent: August 4, 1998Assignee: Lockheed Martin Idaho Technologies CompanyInventors: Bradley M. Gardner, Ann Marie Smith, Richard W. Hanson, Richard T. Hodges
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Patent number: 5405188Abstract: An adjustable chair, such as a dental patient chair includes a chair back pivotally connected to a frame and mechanically linked to a travelling seat assembly so that as the chair back is pivoted, the distance between the back and seat assembly increases as the back is moved to an upright orientation and deceases as the back is moved to a reclined orientation. Linkage between the back and seat assembly may include a plate connected to rotate on an axis as the back is pivoted, and eccentrically connected to the travelling seat assembly.Type: GrantFiled: October 21, 1993Date of Patent: April 11, 1995Assignee: MDT CorporationInventor: Richard W. Hanson
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Patent number: 5342097Abstract: A quick disconnect multi-line utility connector including a first body member configured and sized to permit passage, end to end, through the hollow interior of an upstanding tubular mounting post. The first body member is connected to a second body member associated with primary utility support conduits at a junction box.Type: GrantFiled: January 19, 1993Date of Patent: August 30, 1994Assignee: MDT CorporationInventor: Richard W. Hanson
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Patent number: 5297961Abstract: A dental control unit having conduit-carrying whip arms pivotally mounted on a base so as to leave top and side surfaces of a housing covering the base entirely free of seams or openings where oral cavity spray can enter; and conduits for dental handpieces that enter the whip arms at pivot connections for the arms inside the housing, such that the pivot connections and the portions of the conduits entering the whip arms are protected from oral cavity spray.Type: GrantFiled: April 20, 1993Date of Patent: March 29, 1994Assignee: MDT CorporationInventor: Richard W. Hanson
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Patent number: 5075229Abstract: A transgenic animal is constructed in which one or more cells contain a promoter to the gene for cytosolic PEPCK operably linked to a non-PEPCK gene of interest. Expression of this gene is controlled by modifying the protein and carbohydrate components of the animal's diet, or by direct hormonal regulation. The PEPCK promoter is induced by high protein and inhibited by high carbohydrate, or more directly by cAMP and insulin. The linked gene is expressed essentially only after bith and essentially only in particular tissues. The PEPCK promoter has a extremely high promoter strength.Type: GrantFiled: June 13, 1988Date of Patent: December 24, 1991Assignee: Ohio University Edison Animal Biotechnology CenterInventors: Richard W. Hanson, Mary McGrane, Jay Short, Maria Hatzoglou
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Patent number: 4324539Abstract: A concrete pressure monitoring device in an apparatus for continuously forming an elongated monolithic concrete structure within a prepared excavation. The device includes a pressure sensitive membrane exposed to wet concrete between a bottom surface of the excavation and an inner form member of the apparatus. The membrane covers an open end of a fluid filled housing so that variations in concrete pressure adjacent the membrane will flex the membrane to cause displacement of fluid within the housing. A remote indicator responsive to displacement of fluid within the housing is operatively connected to the housing to indicate the concrete pressure variations.Type: GrantFiled: May 3, 1979Date of Patent: April 13, 1982Assignee: R. A. Hanson Co., Inc.Inventor: Richard W. Hanson
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Patent number: D271509Type: GrantFiled: February 12, 1982Date of Patent: November 22, 1983Inventor: Richard W. Hanson
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Patent number: D586026Type: GrantFiled: September 6, 2005Date of Patent: February 3, 2009Inventors: Richard W. Hanson, Austin E. Unsworth
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Patent number: D361438Type: GrantFiled: October 21, 1993Date of Patent: August 22, 1995Assignee: MDT CorporationInventors: John W. Spencer, Barry S. Young, Richard W. Hanson, John W. Lewis