1
Robert R Runnells, Peter A Haak, Rodney B Larkin, C Keith Vandervelden: Combination steam and unsaturated chemical vapor sterilizer. MDT Chemical Company, Trask & Britt, May 8, 1984: US04447399 (34 worldwide citation)

A combination unsaturated chemical vapor sterilization system and a steam sterilization system utilizing the same sterilizing chamber. It includes a pressure chamber in communication with a source of sterilizing chemicals and water, transport means to selectively deliver sterilizing chemicals or wat ...


2
Robert R Runnells: Container for use with sterilizers. MDT Biologic Company, Trask Britt & Rossa, September 27, 1988: US04774063 (27 worldwide citation)

A container for holding dental or medical implements within the sterilization chamber of a clinical sterilizer includes a bottom tray and a cover element which cooperatively effect a Morton-type closure. The cover element is adapted to permit viewing of the sterilized contents of the container witho ...


3
Robert R Runnells: Ultrasonic cleaning device. MDT Chemical Company, Trask & Britt, February 10, 1976: US03937236 (26 worldwide citation)

The ultrasonic cleaning device includes an ultrasonic radiation insulated container for holding a cleaning detergent. A first perforated basket for holding medical or dental tools is carried within the container. The open end of the container is closed by a cover having a peripherally attached rubbe ...


4
Robert A Kolstad, Robert R Runnells, John C Schmoegner: Sterilization method. MDT Corporation, Trask Britt & Rossa, November 27, 1990: US04973449 (24 worldwide citation)

Heat-labile articles are sterilized by subjecting them to pulses of sporicidal vapors and maintaining them for a holding period in contact with such vapors.


5
Robert R Runnells, Peter A Haak, Rodney B Larkin, Keith Vandervelden: Combination steam and unsaturated chemical vapor sterilizer. MDT Biologic Company, Trask & Britt, June 3, 1986: US04592896 (11 worldwide citation)

A temperature sensor/pressure relief valve has a sensing end positioned within the pressure chamber of a sterilizer and an exhaust end positioned outside the pressure chamber. The temperature sensor is cooperatively adapted to a terminal apparatus at the sensing end to form a pressure relief valve.


6
Robert R Runnells, John C Schmoegner, Roland G Larsen, Robert A De La Mare: Track system. MDT Instrument Company, Trask & Britt, June 10, 1980: US04206546 (11 worldwide citation)

A track system for a slidable tray of a dental instrument delivery system includes a stationary slide guide member, a movable slide body member and a floating bearing assembly interposed between these members in coupling arrangement.


7
Robert R Runnells: X-ray tube head assembly with sterilizable handle. MDT Corporation, Trask Britt & Rossa, February 12, 1991: US04993057 (9 worldwide citation)

A sterilizable removable handle is provided in associated with an X-ray tube head assembly to permit manipulation of the assembly within a sterile field while avoiding contamination of an operator's hand.


8
Robert R Runnells, John C Schmoegner: Dental instrument delivery system. MDT Instrument Company, Trask & Britt, December 25, 1979: US04179813 (3 worldwide citation)

A dental instrument delivery system of the type in which hand pieces are stored at the front edge of an instrument deck and are connected to utilities by means of flexible tubes with coiled memories is provided with structure to contain and support the weight of the tubing. The hand pieces may be he ...


9
Robert R Runnells: Dental operating chair with restraining arm supports. MDT Instrument Company, June 6, 1978: US04093308

A dental operating chair includes a movable back member which can be adjusted to position a patient in a substantially supine posture. Arcuately formed arm supports which curve toward the patient are removably secured along the opposite longitudinal sides of the back member to retain the arms of a p ...