Patents by Inventor Mitchell C. Calderwood

Mitchell C. Calderwood 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: 11759154
    Abstract: The present invention is an improved barrier-contained radiological sensor holder. In particular, the present invention is directed to radiological sensor holder contained in a barrier sheath to reduce or prevent contamination. The radiological sensor holder preferably comprises a sensor holder at least partly contained within a barrier sheath having a closed end and an open end. The barrier sheath preferably comprises elastomer latex material and the sensor holder preferably comprises an exterior attachment and an interior container, where the exterior attachment presses a portion of the barrier sheath into a gapped attachment port on the interior container. The sensor holder may alternately include an expansion slit along the opposing face. The sensor holder can also have snap on articles for positioning the sensor for posterior, anterior and vertical image capture.
    Type: Grant
    Filed: May 23, 2022
    Date of Patent: September 19, 2023
    Inventor: Mitchell C Calderwood
  • Publication number: 20230090890
    Abstract: The present invention is an improved barrier-contained radiological sensor holder. In particular, the present invention is directed to radiological sensor holder contained in a barrier sheath to reduce or prevent contamination. The radiological sensor holder preferably comprises a sensor holder at least partly contained within a barrier sheath having a closed end and an open end. The barrier sheath preferably comprises elastomer latex material and the sensor holder preferably comprises an exterior attachment and an interior container, where the exterior attachment presses a portion of the barrier sheath into a gapped attachment port on the interior container. The sensor holder may alternately include an expansion slit along the opposing face. The sensor holder can also have snap on articles for positioning the sensor for posterior, anterior and vertical image capture.
    Type: Application
    Filed: May 23, 2022
    Publication date: March 23, 2023
    Inventor: Mitchell C. Calderwood
  • Patent number: 11337664
    Abstract: The present invention is an improved barrier-contained radiological sensor holder. In particular, the present invention is directed to radiological sensor holder contained in a barrier to reduce or prevent contamination. The radiological sensor holder preferably comprises a sensor holder at least partly contained within a barrier having a closed end and an open end. The barrier preferably comprises elastomer latex material and the sensor holder preferably comprises a polymer-based material with a treated surface or material characteristics amenable to anchorage of the elastomer. Alternatively, the holder is a wood pulp-based material with naturally coarse or irregular surface characteristics providing anchorage infusion of the elastomer. The sensor holder preferably has a sleeve with a base, first and second sides, and an opposing face and a bite wing integrally formed with the sleeve along a spine on the base. The sensor holder may alternately include an expansion slot along the opposing face.
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: May 24, 2022
    Inventor: Mitchell C Calderwood
  • Publication number: 20200155093
    Abstract: The present invention is an improved barrier-contained radiological sensor holder. In particular, the present invention is directed to radiological sensor holder contained in a barrier to reduce or prevent contamination. The radiological sensor holder preferably comprises a sensor holder at least partly contained within a barrier having a closed end and an open end. The barrier preferably comprises elastomer latex material and the sensor holder preferably comprises a polymer-based material with a treated surface or material characteristics amenable to anchorage of the elastomer. Alternatively, the holder is a wood pulp-based material with naturally coarse or irregular surface characteristics providing anchorage infusion of the elastomer. The sensor holder preferably has a sleeve with a base, first and second sides, and an opposing face and a bite wing integrally formed with the sleeve along a spine on the base. The sensor holder may alternately include an expansion slot along the opposing face.
    Type: Application
    Filed: November 15, 2018
    Publication date: May 21, 2020
    Inventor: Mitchell C Calderwood
  • Patent number: 7661880
    Abstract: The present invention is a radiographic sensor positioning system. In particular, the present invention is directed to a system for positioning a digital dental radiographic sensor in a patient's mouth and for positioning a radiographic device, e.g. a gamma ray source, to interact with the sensor. A preferred embodiment of the dental radiography positioning system comprises an aimer ring that slides onto an extension bar in one of several positions. The extension bar is preferably curved with a flared end and a tined end. The extension bar inserts into a bite block at one of three slots. The bite block has a bite surface above the three slots and a preferably tapered sensor holder slot with two stabilizer posts. A sensor holder is inserted into the sensor holder slot. For posterior images, the stabilizer posts can stabilize the sensor.
    Type: Grant
    Filed: September 27, 2007
    Date of Patent: February 16, 2010
    Inventors: Mitchell C. Calderwood, William B. Schmitz
  • Patent number: 7290928
    Abstract: The present invention is a radiographic sensor positioning system. In particular, the present invention is directed to a system for positioning a digital dental radiographic sensor in a patient's mount and for positioning a radiographic device, e.g. a gamma ray source, to interact with the sensor. A preferred embodiment of the dental radiography positioning system comprises an aimer ring that slides onto either a posterior imaging or an anterior imaging bar. The posterior imaging bar is preferably T-shaped and has a posterior aimer ring bar and a posterior imaging platform for mounting a posterior sensor holder. The posterior sensor holder has a tab for mounting it to the posterior imaging platform. The anterior imaging bar has an anterior aimer ring bar and an anterior imaging platform for mounting an anterior sensor holder. The anterior sensor holder has two arms for mounting it to the anterior imaging platform.
    Type: Grant
    Filed: June 14, 2006
    Date of Patent: November 6, 2007
    Inventors: Mitchell C. Calderwood, William B. Schmitz
  • Patent number: 7097356
    Abstract: The present invention is a radiographic sensor positioning system. In particular, the present invention is directed to a system for positioning a digital dental radiographic sensor in a patient's mouth and for positioning a radiographic device, e.g. a gamma ray source, to interact with the sensor. A preferred embodiment of the dental radiography positioning system comprises an aimer ring that slides onto either a posterior imaging or an anterior imaging bar. The posterior imaging bar is preferably T-shaped and has a posterior aimer ring bar and a posterior imaging platform for mounting a posterior sensor holder. The posterior sensor holder has a tab for mounting it to the posterior imaging platform. The anterior imaging bar has an anterior aimer ring bar and an anterior imaging platform for mounting an anterior sensor holder. The anterior sensor holder has two arms for mounting it to the anterior imaging platform.
    Type: Grant
    Filed: July 17, 2003
    Date of Patent: August 29, 2006
    Assignee: Dentex Limited Partnership
    Inventors: Mitchell C. Calderwood, William B. Schmitz
  • Publication number: 20020133058
    Abstract: A sterile barrier, cover or drape for use with surgical endoscopic camera systems, or the like, which utilizes an optically clear elastomeric film mounted across the aperture of cooperating disks press-fit together to clamp the film and the drape between the disks for separation of the scope and the camera lens while maintaining a sterile field separation between the camera and the mating scope during exploratory and surgical procedures
    Type: Application
    Filed: March 15, 2001
    Publication date: September 19, 2002
    Inventor: Mitchell C. Calderwood
  • Patent number: 6402511
    Abstract: A disposable pathogen barrier of a material which is highly elastic and stretchable, yet tear-resistant, and capable of being placed in proximate contact and covering an entirety of a variety of elongated, tubular-shaped intra-oral medical or dental tools or implements which emit lightwaves in pre-determined ranges without distorting, interrupting or shifting the wavelength of the emitted light, or the receiving of reflected light, by the use of, in a first embodiment, an optically transmissive end and, in a second embodiment, an optically clear film to provide the required range of transmissivity of light.
    Type: Grant
    Filed: February 1, 1999
    Date of Patent: June 11, 2002
    Inventor: Mitchell C. Calderwood
  • Patent number: 5865621
    Abstract: A disposable pathogen barrier of a material which is highly elastic and stretchable, yet tear-resistant, and capable of being placed in proximate contact and covering an entirety of a variety of elongated, tubular-shaped intra-oral medical or dental tools or implements which emit lightwaves in pre-determined ranges without distorting, interrupting or shifting the wavelength of the emitted light, or the receiving of reflected light, by the use of, in a first embodiment, an optically transmissive end and, in a second embodiment, an optically clear film to provide the required range of transmissivity of light.
    Type: Grant
    Filed: July 17, 1995
    Date of Patent: February 2, 1999
    Inventor: Mitchell C. Calderwood
  • Patent number: 5700085
    Abstract: A surgical or clinical lamp handle or adjusting means covering, barrier, shield or prophylactic comprised of a thin, tear-resistant elastic material which is disposable after a single use for covering the exposed surfaces of each of several different shaped and sized surgical or clinical lamp handles or adjusting means, as well as the handle or adjusting means elements which support and connect the handle or adjusting means to the surgical or clinical lamp for preventing the spread of infectious disease.
    Type: Grant
    Filed: June 10, 1996
    Date of Patent: December 23, 1997
    Inventor: Mitchell C. Calderwood
  • Patent number: 4356661
    Abstract: An aerostat amusement device in the form of a ballast member including a resilient container adapted to contain a liquid such as water and having defined therein an opening sufficiently small to preclude flow of the liquid through the hole as a result of the surface tension of the liquid, but adequate to permit flow of the liquid through the hole in response to a pressure differential induced by deforming the resilient container to thus flow liquid into or out of the container in a carefully controlled manner, the ballast device being adapted to be secured to a balloon filled with buoyant gas to resemble an airship, the ballast device being accurately adjustable to maintain the balloon at a desired height by providing an equilibrium with the buoyant force generated by the balloon.
    Type: Grant
    Filed: January 2, 1981
    Date of Patent: November 2, 1982
    Inventor: Mitchell C. Calderwood