Patents by Inventor Mark W. McGlothlin
Mark W. McGlothlin 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).
-
Patent number: 10569451Abstract: Pore-free rubber articles are prepared by dip-molding in a dipping medium that includes a vulcanizing agent, then partially-cured by immersing the dip former in a heated liquid bath that is chemically inert. A particularly effective liquid bath is a molten, nitrite free inorganic salt. The partially-cured rubber is then maintained at a desired curing temperature in a low/no oxygen heating oven to complete curing. Alternatively, upon removal from the molten salt bath, the latex film is quenched.Type: GrantFiled: April 20, 2018Date of Patent: February 25, 2020Assignee: Apex Medical Technologies, Inc.Inventors: Mark W. McGlothlin, Scott Herrick
-
Publication number: 20180333902Abstract: Pore-free rubber articles are prepared by dip-molding in a dipping medium that includes a vulcanizing agent, then partially-cured by immersing the dip former in a heated liquid bath that is chemically inert. A particularly effective liquid bath is a molten, nitrite free inorganic salt. The partially-cured rubber is then maintained at a desired curing temperature in a low/no oxygen heating oven to complete curing. Alternatively, upon removal from the molten salt bath, the latex film is quenched.Type: ApplicationFiled: May 22, 2017Publication date: November 22, 2018Inventors: Mark W. McGlothlin, Scott Herrick
-
Patent number: 8177740Abstract: An internal bladder agitator member(s), which are free to travel in the retained fluid when the bladders are in the filled state. When the bladders are not inflated, the agitator member(s) take up some of the free internal space of the bladder core, resulting in reduced retained fluid volume at the end of an infusion cycle. The free floating bladder agitator member(s) act in the dual role of elastomeric bladder support member(s) and agitator/mixer(s).Type: GrantFiled: June 24, 2004Date of Patent: May 15, 2012Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Mark W. McGlothlin, Scott W. Herrick, Whitney A. Williams
-
Publication number: 20090254062Abstract: The present invention relates to catheters to deliver a fluid to a patient. A catheter of the invention comprises a plurality of slits through which the fluid is delivered to the patent. A catheter of the invention is designed in a simple manner to lower costs and provide a reliable means to deliver fluids to a patient. The invention further comprises methods for making a catheter of the invention and methods of delivering a fluid to a patient with a catheter of the invention.Type: ApplicationFiled: April 3, 2008Publication date: October 8, 2009Inventors: Mark W. McGlothlin, Scott W. Herrick
-
Publication number: 20080227921Abstract: Natural rubber and/or synthetic polyisoprene film products having enhanced tear strength and tensile strength crosslinked with a one polynitrile oxide, intended for direct or indirect contact with living tissue or fluids to be placed in living organisms.Type: ApplicationFiled: October 11, 2007Publication date: September 18, 2008Inventors: Mark W. McGlothlin, Whitney WIlliams Ginter, Scott W. Herrick
-
Patent number: 7374711Abstract: Thin-walled rubber articles for use contact with living tissue or with materials to be delivered to living tissue are prepared from aqueous latex of either natural rubber or synthetic cis-1,4-polyisoprene by vulcanization to produce both carbon-carbon and carbon-(sulfur)n-carbon crosslinks, the vulcanization being performed in the absence of any compounding components that contain secondary amine groups or any components that have a tendency to produce nitrosamines. While sulfur activators may be included, it is preferable that no sulfur accelerators at all be included. Thin-walled rubber articles formed from the latex surprisingly exhibit a combination of high tensile strength, high ultimate percent elongation, and low 500% tensile modulus. The process is particularly effective in the manufacture of thin-walled articles from synthetic cis-1,4-polyisoprene.Type: GrantFiled: October 10, 2002Date of Patent: May 20, 2008Assignee: Apex Medical Technologies, Inc.Inventors: Mark W. McGlothlin, Eric Schmid, Brian P. Watschke
-
Patent number: 7294678Abstract: Natural rubber and/or synthetic polyisoprene film products having enhanced tear strength and tensile strength crosslinked with a one polynitrile oxide, intended for direct or indirect contact with living tissue or fluids to be placed in living organisms.Type: GrantFiled: January 28, 2005Date of Patent: November 13, 2007Assignee: Regent Medical LimitedInventors: Mark W. McGlothlin, Whitney A. Williams, Scott W. Herrick
-
Patent number: 6920643Abstract: Pore-free rubber articles are prepared by dip-molding in a dipping medium that includes a vulcanizing agent, then by immersing the dip former in a heated liquid bath that is chemically inert. A particularly effective liquid bath is molten inorganic salt. In addition, the tensile properties of an article of vulcanized rubber can be improved to an unusually effective degree by immersing the already vulcanized article in a solution of a vulcanizing agent to cause the rubber of the article to absorb or imbibe the vulcanizing agent from the solution, and then immersing the rubber and the imbibed vulcanizing agent in a heated liquid bath to increase the degree of vulcanization.Type: GrantFiled: February 17, 2004Date of Patent: July 26, 2005Assignee: Regent Medical LimitedInventors: Mark W. McGlothlin, Eric V. Schmid
-
Publication number: 20040164456Abstract: Pore-free rubber articles are prepared by dip-molding in a dipping medium that includes a vulcanizing agent, then by immersing the dip former in a heated liquid bath that is chemically inert. A particularly effective liquid bath is molten inorganic salt. In addition, the tensile properties of an article of vulcanized rubber can be improved to an unusually effective degree by immersing the already vulcanized article in a solution of a vulcanizing agent to cause the rubber of the article to absorb or imbibe the vulcanizing agent from the solution, and then immersing the rubber and the imbibed vulcanizing agent in a heated liquid bath to increase the degree of vulcanization.Type: ApplicationFiled: February 17, 2004Publication date: August 26, 2004Applicant: LRC Products Ltd.Inventors: Mark W. McGlothlin, Eric V. Schmid
-
Patent number: 6775848Abstract: Pore-free rubber articles are prepared by dip-molding in a dipping medium that includes a vulcanizing agent, then by immersing the dip former in a heated liquid bath that is chemically inert. A particularly effective liquid bath is molten inorganic salt. In addition, the tensile properties of an article of vulcanized rubber can be improved to an unusually effective degree by immersing the already vulcanized article in a solution of a vulcanizing agent to cause the rubber of the article to absorb or imbibe the vulcanizing agent from the solution, and then immersing the rubber and the imbibed vulcanizing agent in a heated liquid bath to increase the degree of vulcanization.Type: GrantFiled: February 3, 2003Date of Patent: August 17, 2004Assignee: LRC Products Ltd.Inventors: Mark W. McGlothlin, Eric V. Schmid
-
Publication number: 20040071909Abstract: Thin-walled rubber articles for use contact with living tissue or with materials to be delivered to living tissue are prepared from aqueous latex of either natural rubber or synthetic cis-1,4-polyisoprene by vulcanization to produce both carbon-carbon and carbon-(sulfur)n-carbon crosslinks, the vulcanization being performed in the absence of any compounding components that contain secondary amine groups or any components that have a tendency to produce nitrosamines. While sulfur activators may be included, it is preferable that no sulfur accelerators at all be included. Thin-walled rubber articles formed from the latex surprisingly exhibit a combination of high tensile strength, high ultimate percent elongation, and low 500% tensile modulus. The process is particularly effective in the manufacture of thin-walled articles from synthetic cis-1,4-polyisoprene.Type: ApplicationFiled: October 10, 2002Publication date: April 15, 2004Applicant: APEX MEDICAL TECHNOLOGIES, INC., a corporation of the state of IllinoisInventors: Mark W. McGlothlin, Eric Schmid, Brian P. Watschke
-
Publication number: 20030141633Abstract: Pore-free rubber articles are prepared by dip-molding in a dipping medium that includes a vulcanizing agent, then by immersing the dip former in a heated liquid bath that is chemically inert. A particularly effective liquid bath is molten inorganic salt. In addition, the tensile properties of an article of vulcanized rubber can be improved to an unusually effective degree by immersing the already vulcanized article in a solution of a vulcanizing agent to cause the rubber of the article to absorb or imbibe the vulcanizing agent from the solution, and then immersing the rubber and the imbibed vulcanizing agent in a heated liquid bath to increase the degree of vulcanization.Type: ApplicationFiled: February 3, 2003Publication date: July 31, 2003Applicant: APEX MEDICAL TECHNOLOGIES, INC.Inventors: Mark W. McGlothlin, Eric V. Schmid
-
Patent number: 6569375Abstract: Pore-free rubber articles are prepared by dip-molding in a dipping medium that includes a vulcanizing agent, then by immersing the dip former in a heated liquid bath that is chemically inert. A particularly effective liquid bath is molten inorganic salt. In addition, the tensile properties of an article of vulcanized rubber can be improved to an unusually effective degree by immersing the already vulcanized article in a solution of a vulcanizing agent to cause the rubber of the article to absorb or imbibe the vulcanizing agent from the solution, and then immersing the rubber and the imbibed vulcanizing agent in a heated liquid bath to increase the degree of vulcanization.Type: GrantFiled: April 11, 2000Date of Patent: May 27, 2003Assignee: Apex Medical Technologies, Inc.Inventors: Mark W. McGlothlin, Eric V. Schmid
-
Patent number: 6329444Abstract: Medical devices of synthetic rubber are prepared from cis-1,4-polyisoprene by dip molding without the use of sulfur containing components. The devices have surprisingly favorable tensile characteristics despite what is known in regard to synthetic cis-1,4-polyisoprene. In addition, the absence of both the proteins present in natural rubber and the sulfur components that are typically used in vulcanization of both natural rubber and cis-1,4-polyisoprene of the prior art renders the devices freely usable without causing the user to suffer Type I or Type IV allergic reactions that typically arise from contact with natural rubber.Type: GrantFiled: October 14, 1998Date of Patent: December 11, 2001Assignee: Apex Medical Technologies, Inc.Inventors: Mark W. McGlothlin, Eric V. Schmid
-
Patent number: 6075073Abstract: Rubbery polymers in hydrocarbon solutions are emulsified in aqueous liquids and converted to latices by partitioning the emulsion through a membrane of selective permeability to the hydrocarbon solvent relative to both water and the polymer, thereby removing the hydrocarbon solvent from the emulsion. The foaming that is often associated with removing hydrocarbon solvent from aqueous emulsions by conventional means is thus avoided. Membrane partitioning mechanisms that are useful for this application include those involving both nonporous and microporous membranes, those passing the solvent both as a liquid and as a gas, those drawing off the permeate as both a liquid and a gas, and various combinations of these methods.Type: GrantFiled: August 20, 1998Date of Patent: June 13, 2000Assignee: Apex Medical Technologies, Inc.Inventors: Mark W. McGlothlin, Eric V. Schmid
-
Patent number: 5992700Abstract: Gas is generated at a controlled rate from a liquid and solid phase combination that generated gas upon contact, by using diffusive transport of the liquid toward the solid phase surface to prolong the rate of gas generation, with a variety of alternatives for controlling the rate of diffusive transport. This system is useful in infusion devices for delivering medications or other beneficial liquids from a retaining pouch at controlled rates over a prolonged period of time.Type: GrantFiled: May 28, 1997Date of Patent: November 30, 1999Assignee: Apex Medical Technologies, Inc.Inventors: Mark W. McGlothlin, Alice A. DePaul, Eric Schmid
-
Patent number: 5948399Abstract: A method of producing ammonia water (aqua ammonia) by means of desorbing an ammonia laden sorbent, preferably a zeolite molecular sieve or silica gel into water. The method includes placing an activated sorbent material into a sealed vessel, such as a pressure pot, and exposing it to ammonia gas for a period of time. After loading by exposure to ammonia gas, the loaded sorbent is then placed into an air and water tight container for storage. The pouch can be stored for extended lengths of time prior to use of the contents. When ready for use, the contents of the pouch are dropped into a container of water. In one preferred use of the loaded sorbents, the container of water is a toilet bowl. In another preferred embodiment, the container is a separate disposal pouch, such as a small plastic bag capable of holding an ostomy pouch, sanitary napkin or incontinence pad. After use, the ostomy pouch or other device can be made to dissolve by placing the used pouch in ammonia water at a pH of 10.3 or higher.Type: GrantFiled: December 30, 1997Date of Patent: September 7, 1999Inventor: Mark W. McGlothlin
-
Patent number: 5729956Abstract: A method of producing ammonia water (aqua ammonia) by means of desorbing an ammonia laden sorbent, preferably a zeolite molecular sieve or silica gel into water. The method includes placing an activated sorbent material into a sealed vessel, such as a pressure pot, and exposing it to ammonia gas for a period of time. After loading by exposure to ammonia gas, the loaded sorbent is then placed into an air and water tight container for storage. The pouch can be stored for extended lengths of time prior to use of the contents. When ready for use, the contents of the pouch are dropped into a container of water. In one preferred use of the loaded sorbents, the container of water is a toilet bowl. In another preferred embodiment, the container is a separate disposal pouch, such as a small plastic bag capable of holding an ostomy pouch, sanitary napkin or incontinence pad. After use, the ostomy pouch or other device can be made to dissolve by placing the used pouch in ammonia water at a pH of 10.3 or higher.Type: GrantFiled: April 23, 1996Date of Patent: March 24, 1998Assignee: Apex Medical Technologies, IncInventor: Mark W. McGlothlin
-
Patent number: 5129256Abstract: Condoms and similar sheaths are leak tested by being placed over a porous support form referred to as a mandrel similar in shape to the condom, and applying a pressure differential between the outside and the inside of the mandrel, which is preferably hollow. With the open end of the condom sealed in an airtight manner against a smooth surface at the base of the mandrel, leaks are detected by the flow of air or other gas into the mandrel interior.Type: GrantFiled: March 27, 1991Date of Patent: July 14, 1992Assignee: LRC Products, Ltd.Inventor: Mark W. McGlothlin
-
Patent number: D631153Type: GrantFiled: January 7, 2008Date of Patent: January 18, 2011Assignee: I-Flow CorporationInventors: Mark W. McGlothlin, Scott W. Herrick