Patents by Inventor Charles H. Harrison
Charles H. Harrison 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: 5468864Abstract: The present invention relates to a process for preparing 2,6-dichloropyridine which comprises reacting an organic solvent-free, catalyst-free reaction mixture comprising 2-chloropyridine and chlorine in the presence of a hydrogen chloride scavenger and ultraviolet light, and optionally in the presence of added moisture, at a temperature of between about 90.degree. C. and about 185.degree. C. Also claimed is a method for preventing calcium chloride plugging of the chlorine feed stream and for preventing calcium chloride build-up in the above reaction mixture which comprises adding moisture in the form of water or steam, or a combination thereof, to the reaction mixture prior to, or during, the reaction of said process.Type: GrantFiled: February 3, 1994Date of Patent: November 21, 1995Assignee: Olin CorporationInventors: Rahim Hani, Richard H. Dumas, David F. Gavin, Charles H. Harrison, Michael A. Kennedy, Henry W. Schiessl, Robert E. McMahon, Steven A. Manke
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Patent number: 5302358Abstract: Apparatus for sterilizing objects with a gaseous ethylene oxide held in a sealed ampule of the type including a breakable section, includes a cartridge for holding the sealed ampule in a substantially immovable manner, the cartridge including a first chamber for containing the ampule, a second chamber for holding an absorbent cotton material to hold the liquid sterilant upon breaking open of the ampule, the first and second chambers being in communication with each other, a transverse bore extending into the first chamber and outlet openings in the second chamber; a push-button slidably movable in the transverse bore for breaking open the ampule upon depression of the push-button in the transverse bore, wherein, upon breaking open the ampule, the gaseous sterilant escapes from the ampule through the outlet openings into sterilizing contact with the objects; a releasable guard for preventing slidable movement of the push-button in the transverse bore to prevent breaking of the ampule; and a liner bag for holdiType: GrantFiled: January 15, 1993Date of Patent: April 12, 1994Assignee: H. W. Andersen Products, Inc.Inventors: Harold W. Andersen, Charles H. Harrison
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Patent number: 5227132Abstract: Apparatus and method for sterilizing articles includes a sealed first enclosure made at least partially of a gas-permeable plastic film and a sealed container releasably containing a gaseous sterilant under pressure, the container being enclosed within the first enclosure. An openable second enclosure made at least partially of a gas-permeable plastic film is also provided and the first enclosure and the articles to be sterilized are disposed in the second enclosure. The sterilant which is characterized by toxicity and flammability when released from its container diffuses from the first enclosure into the second enclosure at a rate capable of establishing sterilization conditions in the second enclosure during a sterilization cycle to thereby effect sterilization of the articles in the second enclosure. A third enclosure is also provided in which the second enclosure containing the articles to be sterilized is disposed.Type: GrantFiled: December 12, 1991Date of Patent: July 13, 1993Assignee: H. W. Andersen Products, Inc.Inventors: Harold W. Andersen, William K. Andersen, Charles H. Harrison
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Patent number: 5160700Abstract: A sterilizing system includes a sealed container releasably containing a gaseous sterilant under pressure and a first enclosure made at least partially of a gas-permeable material. The container and the articles to be sterilized are disposed in and sealed within the first enclosure, the container while in the sealed first enclosure being manipulatable to release gaseous sterilant into the sealed first enclosure. A second enclosure in which the first enclosure is disposed is constructed such that the sterilant released into the first enclosure from the container diffuses through the gas-permeable material of the first enclosure into the second enclosure at a rate capable of establishing sterilizing conditions in the first enclosure during a sterilizing cycle to thereby effect sterilization of the articles in the first enclosure.Type: GrantFiled: January 2, 1991Date of Patent: November 3, 1992Assignee: H. W. Andersen Products, Inc.Inventors: Harold W. Anderson, Charles H. Harrison
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Patent number: 5118471Abstract: Apparatus for sterilizing articles includes a sealed first enclosure made at least partially of a gas-permeable plastic film and a sealed container releasably containing a gaseous sterilant under pressure, the container being enclosed within the first enclosure. An openable second enclosure made at least partially of a gas-permeable plastic film is also provided and the first enclosure and the articles to be sterilized are disposed in the second enclosure. The sterilant which is characterized by toxicity and flammability when released from its container diffuses from the first enclosure into the second enclosure at a rate capable of establishing sterilization conditions in the second enclosure during a sterilization cycle to thereby effect sterilization of the articles in the second enclosure. A third enclosure is also provided in which the second enclosure containing the articles to be sterilized is disposed.Type: GrantFiled: February 22, 1990Date of Patent: June 2, 1992Assignee: H.W. Andersen Products, Inc.Inventors: Harold W. Andersen, William K. Andersen, Charles H. Harrison
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Patent number: 5053026Abstract: An aspirating device for removing fluids from a body site includes a container for collecting aspirated fluids, a suction device in communication with the container for applying a negative pressure to the container, a tube connected to the container and adapted to communicate with a body site for transferring fluids from the body site to the container in response to negative pressure in the container, and a valve for controlling the negative pressure in the container, the container having a diaphragmatic wall operable to actuate the valve.Type: GrantFiled: February 22, 1990Date of Patent: October 1, 1991Assignee: H. W. Andersen Products Inc.Inventors: Harold W. Andersen, Charles H. Harrison
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Patent number: 4937046Abstract: Apparatus and method for sterilizing articles includes a sealed first enclosure made at least partially of a gas-permeable plastic film and a sealed container releasably containing a gaseous sterilant under pressure, the container being enclosed within the first enclosure. An openable second enclosure made at least partially of a gas-permeable plastic film is also provided and the first enclosure and the articles to be sterilized are disposed in the second enclosure. The sterilant which is characterized by toxicity and flammability when released from its container diffuses from the first enclosure into the second enclosure at a rate capable of establishing sterilization conditions in the second enclosure during a sterilization cycle to thereby effect sterilization of the articles in the second enclosure. A third enclosure is also provided in which the second enclosure containing the articles to be sterilized is disposed.Type: GrantFiled: January 26, 1988Date of Patent: June 26, 1990Assignee: H. W. Andersen Products Inc.Inventors: Harold W. Andersen, William K. Anderson, Charles H. Harrison
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Patent number: 4554172Abstract: A method of repairing a damaged electrode surface comprises coating the damaged area with a polyhaloolefin. The coated area is cured, for example, by heat or radiation and the cured coating bonds the damaged area to the surrounding electrode surface.The method of the invention permits the "in situ" repair of electrode surfaces while preventing distortion of the electrode surface or its support members.Type: GrantFiled: July 5, 1984Date of Patent: November 19, 1985Assignee: Olin CorporationInventor: Charles H. Harrison
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Patent number: 4528268Abstract: Apparatus and method for testing the sufficiency of sterilization includes a test tube having a distal end in which a bacterial spore element is disposed. A sealed glass ampule containing a sterile liquid culture medium is disposed in the test tube and a plunger having a fenestration closed with a hydrophobic filter is fitted slidingly in the open end of the test tube. In use, the apparatus is exposed to sterilization, and thereafter the plunger is pushed down into the test tube to engage the ampule to slide the latter into engagement with an ampule-engaging means to thereby fracture or break the ampule so that the contents of the ampule are released into the test tube to contact the spore element, whereby the apparatus is then subjected to incubation, the sufficiency of the sterilization being thereby determined.Type: GrantFiled: December 31, 1981Date of Patent: July 9, 1985Assignee: H. W. Andersen Products Inc.Inventors: Harold W. Andersen, Charles H. Harrison
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Patent number: 4444548Abstract: Suction apparatus for use in draining fluids from operative wounds or other body cavities includes a housing having a vacuum chamber, at least a portion of which serves as a storage compartment for aspirated fluids. A vacuum pump in the apparatus has an inlet in communication with the vacuum chamber for providing a vacuum therein. The storage compartment has an inlet for introducing aspirated fluid therein, and an outlet is provided for emptying fluid from the compartment. Suitable means are provided on the compartment for measuring the quantity of aspirated fluid collected in the storage compartment.Type: GrantFiled: August 8, 1980Date of Patent: April 24, 1984Assignee: University Testing Service Inc.Inventors: Harold W. Andersen, Charles H. Harrison, Melvin H. Worth, Jr.
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Patent number: 4439297Abstract: A monopolar membrane electrolytic cell is comprised of a plurality of anodes wherein each anode is comprised of a first foraminous surface and a second foraminous surface positioned in parallel and spaced apart, and a frame enclosing the first and the second foraminous surfaces. The frame has two side members, a top member, and a bottom member attached to the foraminous surfaces. A chamber is formed between the foraminous surfaces and bounded by the frame. Conductor rods pass through one of the side members of the frame into the chamber, the conductor rods being spaced apart from the foraminous surfaces. Foraminous conductive connectors are positioned in the chamber and attached to the conductor rods and to the foraminous surfaces; a plurality of cathodes wherein each cathode is comprised of at least one foraminous surface, and a frame which encloses the foraminous surface.Type: GrantFiled: October 1, 1981Date of Patent: March 27, 1984Assignee: Olin CorporationInventors: Morton S. Kircher, David D. Justice, Kenneth E. Woodard, Jr., Charles H. Harrison
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Patent number: 4418055Abstract: A sterilization system preferably utilizing two baths in which articles to be sterilized are immersed into a first bath where the articles are conditioned and then into a second bath containing a sterilizing solution where they are sterilized. The ingredients for the sterilization system are stored in hermetically sealed pouches which are opened just prior to use to release and activate the system. The sterilization system utilizes a chlorine solution which is highly efficacious while being non-corrosive and having a reduced toxicity and prolonged shelf life, and may be utilized by relatively untrained personnel.Type: GrantFiled: August 19, 1981Date of Patent: November 29, 1983Assignee: Anprosol IncorporatedInventors: Harold W. Andersen, Shirley R. Andersen, Clifford Zaner, Charles H. Harrison
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Patent number: 4284599Abstract: A sterilization system preferably utilizing two baths in which articles to be sterilized are immersed into a first bath where the articles are conditioned and then into a second bath containing a sterilizing solution where they are sterilized. The ingredients for the sterilization system are stored in hermetically sealed, multicompartment pouches which are opened just prior to use to release and activate the system. The sterilization system utilizes a solution comprising 0.02 to 1% of hypochlorite, 1.4 to 20% of di(alkali metal) phosphate, 0.08% to 21% mono(alkali metal) phosphate, and 0.1 to 0.5% of nonionic surfactant with the proviso that the lower limit of di(alkali metal) phosphate is 4% when the amount of said hypochlorite is from 0.5 to 1%, said percentages being based on weight (in grams) per 100 ml. of solution. The sterilizing solution is highly efficacious while being non-corrosive and having a reduced toxicity and prolonged shelf life, and may be utilized by relatively untrained personnel.Type: GrantFiled: March 23, 1979Date of Patent: August 18, 1981Assignee: Anprosol IncorporatedInventors: Harold W. Andersen, Shirley R. Andersen, Clifford Zaner, Charles H. Harrison
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Patent number: 4276263Abstract: A sterilization system preferably utilizing two baths in which articles to be sterilized are immersed into a first bath where the articles are conditioned and then into a second bath containing a sterilizing solution where they are sterilized. The ingredients for the sterilization system are stored in hermetically sealed pouches which are opened just prior to use to release and activate the system. The sterilization system utilizes a chlorine solution which is highly efficacious while being non-corrosive and having a reduced toxicity and prolonged shelf life, and may be utilized by relatively untrained personnel.Type: GrantFiled: March 23, 1979Date of Patent: June 30, 1981Assignee: Anprosol IncorporatedInventors: Harold W. Andersen, Shirley R. Andersen, Clifford Zaner, Charles H. Harrison
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Patent number: 4235332Abstract: A sterilization system preferably utilizing two baths in which articles to be sterilized are immersed into a first bath where the articles are conditioned and then into a second bath containing a sterilizing solution where they are sterilized. The ingredients for the sterilization system are stored in hermetically sealed pouches which are opened just prior to use to release and activate the system. The sterilization system utilizes a chlorine solution which is highly efficacious while being non-corrosive and having a reduced toxicity and prolonged shelf life, and may be utilized by relatively untrained personnel.Type: GrantFiled: March 23, 1979Date of Patent: November 25, 1980Assignee: Anprosol IncorporatedInventors: Harold W. Andersen, Shirley R. Andersen, Clifford Zaner, Charles H. Harrison
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Patent number: 4107976Abstract: In controlling a volatile substance, for example in controlling the release of ethylene oxide for use in a sterilization apparatus, the volatile substance is contained under pressure in a confined system and the latter is immersed in a fluid. The fluid is capable of absorbing the volatile substance such that if any of the volatile substance leaks from the confined systems into the immersion fluid, physicochemical changes will occur in the immersion fluid. These physicochemical changes may be sensed by various detecting devices which thereby serve to detect leaks of volatile substance from the confined system. The immersion fluid may be used as a heat transfer medium in heat exchange relationship with the confined system and desired associated control elements such as a pressure regulator to thereby prevent undesirable condensation of the volatile substance.Type: GrantFiled: April 2, 1976Date of Patent: August 22, 1978Assignee: H. W. Andersen Products Inc.Inventors: Harold Willids Andersen, Charles H. Harrison
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Patent number: 3981701Abstract: In controlling a volatile substance, for example in controlling the release of ethylene oxide for use in a sterilization apparatus, the volatile substance is contained under pressure in a confined system and the latter is immersed in a fluid. The fluid is capable of absorbing the volatile substance such that if any of the volatile substance leaks from the confined systems into the immersion fluid, physicochemical changes will occur in the immersion fluid. These physicochemical changes may be sensed by various detecting devices which thereby serve to detect leaks of volatile substance from the confined system. The immersion fluid may be used as a heat transfer medium in heat exchange relationship with the confined system and desired associated control elements such as a pressure regulator to thereby prevent undesirable condensation of the volatile substance.Type: GrantFiled: August 10, 1973Date of Patent: September 21, 1976Assignee: H.W. Andersen Products Inc.Inventors: Harold Willids Andersen, Charles H. Harrison
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Patent number: D268525Type: GrantFiled: August 8, 1980Date of Patent: April 5, 1983Assignee: University Testing Service Inc.Inventors: Harold W. Andersen, Charles H. Harrison, Melvin H. Worth, Jr.
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Patent number: D270281Type: GrantFiled: December 12, 1980Date of Patent: August 23, 1983Assignee: University Testing Service Inc.Inventors: Harold W. Andersen, Charles H. Harrison, Melvin H. Worth, Jr.