Patents by Inventor Terrence R. Langford

Terrence R. Langford 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: 9089880
    Abstract: Apparatus and methods for processing an item, such as a lumened instrument, secured in a connectorless fashion in a push/pull reprocessor. The push/pull reprocessor includes a container having a first chamber and a second chamber and a pressure sensor in each chamber such that the method includes the step of generating a flow of a liquid, such as ozonated water, back-and-forth upon the item or additionally through a lumen in the case of a lumened instrument.
    Type: Grant
    Filed: June 16, 2014
    Date of Patent: July 28, 2015
    Assignee: Langford IC Systems, Inc.
    Inventor: Terrence R. Langford
  • Patent number: 9023277
    Abstract: Methods and apparatus for liquid, gas, and gas plasma sterilization of items. The apparatus includes two chambers and a holder to connectorlessly secure a lumened instrument such that a first portion of the lumened instrument lies in the first chamber and a second portion of the instrument lies in the second chamber, a liquid medium contained within the two chambers, and pumping means for simultaneously increasing fluid pressure within the first chamber of said container while decreasing fluid pressure within the second chamber of the container in a reciprocating fashion. The pumping means displaces at least a total internal volume of the liquid medium through the lumen for a given highest volume of a lumened instrument during a stroke.
    Type: Grant
    Filed: January 10, 2014
    Date of Patent: May 5, 2015
    Assignee: Langford IC Systems, Inc.
    Inventor: Terrence R. Langford
  • Publication number: 20140290700
    Abstract: Apparatus and methods for processing an item, such as a lumened instrument, secured in a connectorless fashion in a push/pull reprocessor. The push/pull reprocessor includes a container having a first chamber and a second chamber and a pressure sensor in each chamber such that the method includes the step of generating a flow of a liquid, such as ozonated water, back-and-forth upon the item or additionally through a lumen in the case of a lumened instrument.
    Type: Application
    Filed: June 16, 2014
    Publication date: October 2, 2014
    Inventor: Terrence R. Langford
  • Publication number: 20140124006
    Abstract: Methods and apparatus for liquid, gas, and gas plasma sterilization of items. The apparatus includes two chambers and a holder to connectorlessly secure a lumened instrument such that a first portion of the lumened instrument lies in the first chamber and a second portion of the instrument lies in the second chamber, a liquid medium contained within the two chambers, and pumping means for simultaneously increasing fluid pressure within the first chamber of said container while decreasing fluid pressure within the second chamber of the container in a reciprocating fashion. The pumping means displaces at least a total internal volume of the liquid medium through the lumen for a given highest volume of a lumened instrument during a stroke.
    Type: Application
    Filed: January 10, 2014
    Publication date: May 8, 2014
    Applicant: Langford IC Systems, Inc.
    Inventor: Terrence R. Langford
  • Patent number: 8697001
    Abstract: Methods and apparatus for liquid, gas, and gas plasma sterilization of items. The apparatus includes two chambers and a holder to connectorlessly secure a lumened instrument such that a first portion of the lumened instrument lies in the first chamber and a second portion of the instrument lies in the second chamber, a liquid medium contained within the two chambers, and pumping means for simultaneously increasing fluid pressure within the first chamber of said container while decreasing fluid pressure within the second chamber of the container in a reciprocating fashion. The pumping means displaces at least a total internal volume of the liquid medium through the lumen for a given highest volume of a lumened instrument during a stroke.
    Type: Grant
    Filed: October 2, 2013
    Date of Patent: April 15, 2014
    Assignee: Langford IC Systems, Inc.
    Inventor: Terrence R. Langford
  • Patent number: 8658090
    Abstract: Methods and apparatus for liquid, gas, and gas plasma sterilization of items. The apparatus includes two chambers and a holder to connectorlessly secure a lumened instrument such that a first portion of the lumened instrument lies in the first chamber and a second portion of the instrument lies in the second chamber, a liquid medium contained within the two chambers, and pumping means for simultaneously increasing fluid pressure within the first chamber of said container while decreasing fluid pressure within the second chamber of the container in a reciprocating fashion. The pumping means displaces at least a total internal volume of the liquid medium through the lumen for a given highest volume of a lumened instrument during each stroke.
    Type: Grant
    Filed: October 8, 2008
    Date of Patent: February 25, 2014
    Assignee: Langford IC Systems, Inc.
    Inventor: Terrence R. Langford
  • Publication number: 20140034095
    Abstract: Methods and apparatus for liquid, gas, and gas plasma sterilization of items. The apparatus includes two chambers and a holder to connectorlessly secure a lumened instrument such that a first portion of the lumened instrument lies in the first chamber and a second portion of the instrument lies in the second chamber, a liquid medium contained within the two chambers, and pumping means for simultaneously increasing fluid pressure within the first chamber of said container while decreasing fluid pressure within the second chamber of the container in a reciprocating fashion. The pumping means displaces at least a total internal volume of the liquid medium through the lumen for a given highest volume of a lumened instrument during a stroke.
    Type: Application
    Filed: October 2, 2013
    Publication date: February 6, 2014
    Applicant: Langford IC Systems, Inc.
    Inventor: Terrence R. Langford
  • Patent number: 8568666
    Abstract: Methods and apparatus for liquid, gas, and gas plasma sterilization of items. The apparatus includes two chambers and a holder to connectorlessly secure a lumened instrument such that a first portion of the lumened instrument lies in the first chamber and a second portion of the instrument lies in the second chamber, a liquid medium contained within the two chambers, and pumping means for simultaneously increasing fluid pressure within the first chamber of said container while decreasing fluid pressure within the second chamber of the container in a reciprocating fashion. The pumping means displaces at least a total internal volume of the liquid medium through the lumen for a given highest volume of a lumened instrument during a stroke.
    Type: Grant
    Filed: September 20, 2012
    Date of Patent: October 29, 2013
    Assignee: Langford IC Systems, Inc.
    Inventor: Terrence R. Langford
  • Publication number: 20090038648
    Abstract: Methods and apparatus for liquid, gas, and gas plasma sterilization of items. The apparatus includes two chambers and a holder to connectorlessly secure a lumened instrument such that a first portion of the lumened instrument lies in the first chamber and a second portion of the instrument lies in the second chamber, a liquid medium contained within the two chambers, and pumping means for simultaneously increasing fluid pressure within the first chamber of said container while decreasing fluid pressure within the second chamber of the container in a reciprocating fashion. The pumping means displaces at least a total internal volume of the liquid medium through the lumen for a given highest volume of a lumened instrument during each stroke.
    Type: Application
    Filed: October 8, 2008
    Publication date: February 12, 2009
    Applicant: LANGFORD IC SYSTEMS, INC.
    Inventor: Terrence R. Langford
  • Patent number: 7323149
    Abstract: Methods and apparatus utilizing supplemental ozone treatment for ensuring sterility of instrument cleaning systems. By flushing ozonated water through the components of a cleaning system, the persistent problem of contamination of cleaner chambers, pipes or lines, and filters or banks of filters is effectively prevented. Thus, the integrity of sterilized instruments, such as lumened medical instruments, is more reliably achieved and maintained.
    Type: Grant
    Filed: January 16, 2004
    Date of Patent: January 29, 2008
    Assignee: Langford IC Sysstems, Inc.
    Inventor: Terrence R. Langford
  • Patent number: 5906802
    Abstract: An improved cleaning and sterilizing apparatus adapted for cleaning and sterilizing medical instruments in which a wash cycle and rinse cycle are repeated if proper cleaning of the instrument has not been obtained. Using a turbidity monitor or comparable instrument, an indicia representative of the particles in the rinse water is obtained. If the indicia does not meet some pre-defined standard, such as those set by the Food and Drug Administration, then the wash/rinse cycles are repeated. This is done either until the standards are met or for a certain number of times. If the standards are met, then the medical instrument is sterilized for later use. In the preferred embodiment, proper sterilization is monitored by the turbidity monitor.
    Type: Grant
    Filed: October 17, 1997
    Date of Patent: May 25, 1999
    Inventor: Terrence R. Langford
  • Patent number: 5753195
    Abstract: An improved apparatus which can be used for cleaning and/or sterilizing tubular items. A container is partitioned into two chambers with the item to be cleaned and/or sterilized is positioned to extend through the partition such that one opening lies in one chamber and another opening lies in the other chamber. A flexible membrane is positioned to affect each chamber. By deforming the flexible membrane, inward and outward, a flow between the chambers is created. This flow must pass through the hollow item. Mechanical pressure from the flow cleanses the interior of the tubular item and if a sterilant is used as the medium, then the interior portion of the hollow item is also sterilized.
    Type: Grant
    Filed: January 2, 1996
    Date of Patent: May 19, 1998
    Assignee: Kew Import/Export Inc.
    Inventors: Terrence R. Langford, David L. Davis
  • Patent number: 5711921
    Abstract: An improved apparatus which can be used for cleaning and/or sterilizing tubular items. A container is partitioned into two chambers with the item to be cleaned and/or sterilized is positioned to extend through the partition such that one opening lies in one chamber and another opening lies in the other chamber. Pressure is applied to one chamber forcing the liquid to surge into the second chamber. The surging affect is facilitated through the use of either a flexible membrane in the second chamber, or the use of dual pistons which are one hundred eighty degrees out of synchronization such that one chamber is being pressurized while the second chamber is be de-pressurized.
    Type: Grant
    Filed: August 14, 1996
    Date of Patent: January 27, 1998
    Assignee: Kew Import/Export Inc.
    Inventor: Terrence R. Langford
  • Patent number: 5443801
    Abstract: A cleansing/sterilizing apparatus which is a transportable apparatus and method for inside-outside and sterilization of various complex reusable medical/dental instruments, including but not limited to laparoscopic instruments and dental handpieces. The apparatus avoids the use of heat, pressure, severe agitation, or corrosive chemicals which might damage delicate equipment. The apparatus preserves each processed instrument hermetically sealed in a sterile dry environment within a detachable/portable capsule until its next use.
    Type: Grant
    Filed: May 14, 1993
    Date of Patent: August 22, 1995
    Assignee: KEW Import/Export Inc.
    Inventor: Terrence R. Langford
  • Patent number: 5441622
    Abstract: A hygienic apparatus which totally dissolves sharps from such places as health-care centers, operating rooms laboratories, and the like. The apparatus accepts all sorts of metal sharp instruments. The sharp metal portion is removed from any plastic component of the instrument. The plastic components are collected for sterilization through microwaves or similar process; the sharp metal instruments are dissolved using electrolysis and the liquid is discharged into conventional sewer systems. The sharp instruments, until their dissolution, are secured by a magnet within the apparatus.
    Type: Grant
    Filed: April 14, 1993
    Date of Patent: August 15, 1995
    Assignee: KEW Import/Export, Inc.
    Inventor: Terrence R. Langford
  • Patent number: 5277868
    Abstract: A simple to use, single quantity, syringe sterilization and destruction device is disclosed. A syringe is inserted into the device needle first by the operator. The device grips the syringe and holds it in place. The device heats the steel needle portion of a syringe to sterilize the needle portion. The heat also melts the steel-to-plastic fitting between the steel needle portion and the plastic barrel portion of the syringe. The plastic barrel portion separates from the heated needle portion of the syringe by force of gravity or by a light pulling force exerted by a pulling mechanism. The hole in the fitting is sealed by the molten plastic. Sealing the hole maintains the integrity of the plastic barrel/plunger container and prevents spillage of contaminated waste. The heated needle is bent into a spiral bundle so that no sharp portions protrude from the spiral bundle. The spiral bundle is deposited into a container for recycling or waste disposal.
    Type: Grant
    Filed: October 6, 1992
    Date of Patent: January 11, 1994
    Inventor: Terrence R. Langford
  • Patent number: 5245845
    Abstract: A sterilizing mechanism for flexible material such as fabrics resulting in a waste material which is sanitary and disposable in traditional trash mechanisms without posing any biological hazards. The invention utilizes ozone in a bathing and agitating process to sterilize. An initial step utilizes detergent with ozone to further enhance the process. The resulting liquid bath is non-hazardous and is disposable through traditional means such as sewer disposal. In the preferred embodiment, the drum holding the contaminated material is pressurized and chilled to increase the effectiveness of the ozone in the sterilizing process.
    Type: Grant
    Filed: September 30, 1992
    Date of Patent: September 21, 1993
    Assignee: Kew Import/Export Inc.
    Inventor: Terrence R. Langford
  • Patent number: 5207237
    Abstract: A liquid ozone system in which a liquid bath, preferably of distilled water, is kept in a pressure vessel and gaseous ozone is diffused into the liquid. The ozonenated liquid is then used as a steriliant in a container which is engagable with the pressure vessel. In the preferred embodiment the container and the pressure vessel are chilled to maintain the ozone diffused in the liquid. Excess liquid from the container is communicated to a destruct mechanism such as activated charcoal or discharged into the waste water system.
    Type: Grant
    Filed: September 30, 1992
    Date of Patent: May 4, 1993
    Assignee: Kew Import/Export Inc.
    Inventor: Terrence R. Langford
  • Patent number: 5184633
    Abstract: A cleansing and sterilization mechanism which is usable on contact lenses, surgical instruments, dental tools, and other items which require regular cleansing and sterilization. Using ozone as the cleansing and sterilization medium, the apparatus provides for added guaranty of operation through the use of feedback mechanism to assure that all the components are working and that the to-be-cleaned items are exposed to the ozone bath for the specified time. Furthermore, the item is capable of communicating, via phone line, to a central unit which monitors the operation and performance of the mechanism.
    Type: Grant
    Filed: October 8, 1991
    Date of Patent: February 9, 1993
    Assignee: KEW Import/Export Inc.
    Inventor: Terrence R. Langford
  • Patent number: 4197917
    Abstract: A soil stabilizer comprises a front bank of four ploughs inclined at 45.degree. to the direction of movement and a similar rear bank of ploughs. The ploughs are arranged in pairs whereof the front ploughs toss the soil/stabilizer mixture to one side where it is engaged by the rear plough which tosses to the other side. The ploughs are mounted on a frame which may be carried by pivoted arms on a road grader or may be mounted on ground engaging wheels.
    Type: Grant
    Filed: March 20, 1978
    Date of Patent: April 15, 1980
    Inventors: Terrence R. Langford, Ernest L. Rehm