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).
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Patent number: 11759154Abstract: 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: GrantFiled: May 23, 2022Date of Patent: September 19, 2023Inventor: Mitchell C Calderwood
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Publication number: 20230090890Abstract: 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: ApplicationFiled: May 23, 2022Publication date: March 23, 2023Inventor: Mitchell C. Calderwood
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Patent number: 11337664Abstract: 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: GrantFiled: November 15, 2018Date of Patent: May 24, 2022Inventor: Mitchell C Calderwood
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Publication number: 20200155093Abstract: 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: ApplicationFiled: November 15, 2018Publication date: May 21, 2020Inventor: Mitchell C Calderwood
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Patent number: 7661880Abstract: 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: GrantFiled: September 27, 2007Date of Patent: February 16, 2010Inventors: Mitchell C. Calderwood, William B. Schmitz
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Patent number: 7290928Abstract: 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: GrantFiled: June 14, 2006Date of Patent: November 6, 2007Inventors: Mitchell C. Calderwood, William B. Schmitz
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Patent number: 7097356Abstract: 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: GrantFiled: July 17, 2003Date of Patent: August 29, 2006Assignee: Dentex Limited PartnershipInventors: Mitchell C. Calderwood, William B. Schmitz
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Publication number: 20020133058Abstract: 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 proceduresType: ApplicationFiled: March 15, 2001Publication date: September 19, 2002Inventor: Mitchell C. Calderwood
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Patent number: 6402511Abstract: 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: GrantFiled: February 1, 1999Date of Patent: June 11, 2002Inventor: Mitchell C. Calderwood
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Patent number: 5865621Abstract: 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: GrantFiled: July 17, 1995Date of Patent: February 2, 1999Inventor: Mitchell C. Calderwood
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Patent number: 5700085Abstract: 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: GrantFiled: June 10, 1996Date of Patent: December 23, 1997Inventor: Mitchell C. Calderwood
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Patent number: 4356661Abstract: 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: GrantFiled: January 2, 1981Date of Patent: November 2, 1982Inventor: Mitchell C. Calderwood