Abstract: A heated throttle valve apparatus is disclosed herein, which includes a valve system with a valve driver configured to provide a rotational force to a valve assembly via a thermal isolating drive coupler configured to prevent the transfer of thermal energy from the valve assembly to the valve driver. The valve assembly includes a valve body and a valve closure member, a valve shaft with a valve shaft heater in a first heating zone and one or more body heaters in a second heating zone, permitting the user to control temperature in the heating zones independently. An electrical conductor strain relief is provided, configured to eliminate strain in the shaft heater electrical conductors when the valve closure member undergoes a change in angular orientation. The electrical conductor strain relief includes a curvilinear flexible member wound between a first connection area and a second connection area.

Abstract: This invention involves a film cassette for resiliently holding a film unit for exposure. The cassette includes a forward wall, a rear wall, two side walls, a leading end wall and a trailing end wall all combined to form an enclosure for holding the film unit. An exposure opening in the forward wall allows exposure of the film unit and an egress opening in the leading end wall allows it to be discharged after exposure. A pick slot in the forward wall provides access to a pick to engage the film unit and advance it through the egress opening. A spring platen mounted within the chamber between the rear wall and the film unit biases the film unit against the forward wall in proper position for exposure through the exposure opening.