Patents by Inventor David B. Mennel
David B. Mennel 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: 5601712Abstract: A method and apparatus are provided for removing liquids from biological waste by the employment of centrifugal force to separate the liquid from the biological waste particulate and into a container separate from a biological waste container, permitting the dried biological waste and removed liquid to be separately and conveniently disposed of. Preferably, a rotatable drum can be rotatably supported within an outer liquid-tight drum, and a disposable porous container, such as a bag made of porous material, can be placed within the rotatable foraminous drum. Biological waste can be placed within the porous, disposable container within the rotatable drum, and the rotatable drum can be rotated at a rate of rotation sufficient to substantially transfer unabsorbed liquid from the biological waste through the disposable porous container and the openings in the foraminous inner drum to the outer liquid-tight collection drum.Type: GrantFiled: June 6, 1995Date of Patent: February 11, 1997Assignee: Ecomed, Inc.Inventors: Mathew J. Adams, Kenneth R. Lamaster, David B. Mennel, Jeffrey C. Rapp, Lewis I. Schwartz, Norman L. Siegel, Joseph H. Wilson
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Patent number: 5595711Abstract: A processing chamber for the treatment and decontamination of biological or medical waste includes a rotating waste treatment system carried within an open-top processing chamber, a cap for closing the chamber opening, a gas-pervious liner carried within the chamber for preventing waste from adhering to the underside of the cap as a result of waste-treatment operations, a sealing member disposed at and for sealing the interface of the cap and the processing chamber, and a chemical indicator carried within the interior of the processing chamber for confirming the presence of decontaminant during a waste treatment cycle.Type: GrantFiled: July 20, 1995Date of Patent: January 21, 1997Assignees: Ecomed, Inc., Steris CorporationInventors: Joseph H. Wilson, David C. Haeberle, Raymond C. Kralovic, Kenneth R. Lamaster, David B. Mennel, Jeffrey C. Rapp, Lewis I. Schwartz, Kathleen M. Antloga
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Patent number: 5590840Abstract: An apparatus for the treatment of medical waste, including solid and non-solid materials, permits the collection of such medical waste at the point and at the time of its generation in a solid container. The contained medical waste can be subsequently transported for pulverization, decontamination and safe disposal. A separate portable processing chamber, with an integral means to treat medical waste, can be used at locations remote from its power unit for the collection of medical waste and then moved to the location of the power unit to drive the waste-treatment means within the chamber.Type: GrantFiled: June 5, 1995Date of Patent: January 7, 1997Assignee: Ecomed, Inc.Inventors: Mathew J. Adams, Kenneth R. Lamaster, David B. Mennel, Jeffrey C. Rapp, Joseph H. Wilson
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Patent number: 5534162Abstract: A method and apparatus are provided for removing liquids from biological waste by the employment of centrifugal force to separate the liquid from the biological waste particulate and into a container separate from a biological waste container, permitting the dried biological waste and removed liquid to be separately and conveniently disposed of. Preferably, a rotatable drum can be rotatably supported within an outer liquid-tight drum, and a disposable porous container, such as a bag made of porous material, can be placed within the rotatable foraminous drum. Biological waste can be placed within the porous, disposable container within the rotatable drum, and the rotatable drum can be rotated at a rate of rotation sufficient to substantially transfer unabsorbed liquid from the biological waste through the disposable porous container and the openings in the foraminous inner drum to the outer liquid-tight collection drum. The collected liquids may be disposed of by pumping them into a sanitary sewer.Type: GrantFiled: March 11, 1994Date of Patent: July 9, 1996Assignees: Ecomed, Inc., Steris Corp.Inventors: Mathew J. Adams, Kenneth R. Lamaster, David B. Mennel, Jeffrey C. Rapp, Lewis I. Schwartz, Norman L. Siegel, Joseph H. Wilson
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Patent number: 5516052Abstract: An apparatus for the treatment of medical waste, including solid and non-solid materials, permits the collection of such medical waste at the point and at the time of its generation in a solid container. The contained medical waste can be subsequently transported for pulverization, decontamination and safe disposal. A separate portable processing chamber, with an integral means to treat medical waste, can be used at locations remote from its power unit for the collection of medical waste and then moved to the location of the power unit to drive the waste-treatment means within the chamber.Type: GrantFiled: March 9, 1994Date of Patent: May 14, 1996Assignee: Ecomed, Inc.Inventors: Mathew J. Adams, Kenneth R. Lamaster, David B. Mennel, Jeffrey C. Rapp, Joseph H. Wilson
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Patent number: 5465841Abstract: A method and apparatus for the collection and treatment of contaminated medical waste, including solid and non-solid, potentially infectious materials, permits the collection of such medical waste at the point and at the time of its generation in a solid container. The contained medical waste can be subsequently transported for pulverization, disinfection and safe disposal. A separate portable processing chamber to treat medical waste, can be used at locations remote from its power unit for the collection of medical waste and then moved to the location of the power unit to drive the waste-treatment apparatus within the chamber. In addition, a medical waste collection station can provide single and multiple containers, which may be sequentially used, for the collection of medical waste and whose use may be combined with a processing chamber to treat collected medical waste before its disposal.Type: GrantFiled: June 8, 1993Date of Patent: November 14, 1995Assignee: Ecomed, Inc.Inventors: Joseph H. Wilson, David B. Mennel, Jeffrey C. Rapp
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Patent number: 5236135Abstract: A method and apparatus for the treatment of contaminated medical waste, including solid and non-solid, potentially infectious materials, permits the collection of such medical waste at the point and at the time of its generation in a solid container, which is subsequently transported for pulverization, disinfection and safe disposal. A separate portable processing chamber, with an integral means to treat medical waste, is used at locations remote from its power unit for the collection of medical waste and then moved to the location of the power unit to drive the waste-treatment means within the chamber.Type: GrantFiled: May 19, 1992Date of Patent: August 17, 1993Assignee: ECOMED, Inc.Inventors: Joseph H. Wilson, David B. Mennel, Jeffrey C. Rapp
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Patent number: 5054696Abstract: A medical waste disposal system is provided for disposing of biologically contaminated waste material situated inside a rigid, form-stable container. The disposal system includes a processing unit for shredding the waste material into a shredded mass and for transporting the shredded mass into a disintegrator. The disintegrator mixes the shredded mass with a liquid disinfectant solution to disinfect the shredded mass and disintegrates the shredded mass into an unrecognizable particulate waste material.Type: GrantFiled: January 29, 1990Date of Patent: October 8, 1991Assignee: Medical SafeTEC, Inc.Inventors: David B. Mennel, Joseph H. Wilson, Martin E. Elliott, Gary D. Gann