Abstract: An improved product filling device for filling containers has a zero clearance rotor valve engaging the interior of a rotor valve housing. The rotor has a tapered conical sealing surface engaged with a complimentary conical seating surface in the housing. The position of the rotor allows product to enter a cylinder and be discharged from the cylinder into a container via movement of a piston inside the cylinder. Alternative structures and methods are disclosed.

Abstract: An improved product filling device for filling containers has a zero clearance rotor valve engaging the interior of a rotor valve housing. The rotor has a tapered conical sealing surface engaged with a complimentary conical seating surface in the housing. The position of the rotor allows product to enter a cylinder and be discharged from the cylinder into a container via movement of a piston inside the cylinder. Alternative structures and methods are disclosed.

Abstract: A combplate safety device for a passenger conveyor moving relative to a frame and having a combplate mounted on the frame and movable relative to the frame in response to an obstruction to the motion of the conveyor. The combplate safety device includes a ramped hold down member which cooperates with the frame to define a rearwardly opening notch within which a complementary portion of the combplate is releasably secured against the frame in a vertically downward direction. A pair of limit switches are actuated upon a predetermined relative displacement of the combplate and the frame for deactivating the conveyor in response to the obstruction to the motion, with a compressible member being posed between the combplate and the frame to prevent accumulated debris from interfering with operation of the safety device.

Abstract: A guide mechanism for a passenger conveyor which includes a series of passenger platforms supported on and movable along a frame which has a support track for support rollers mounted on the platforms. The guide mechanism includes a monotrack guide rail, and a pair of horizontal pinch rollers supported by each passenger platform. The pinch rollers are in engagement with opposite sides of the monotrack guide rail. One of the pinch rollers is of a lower compression stiffness than the other pinch roller. The guide mechanism is coupled to a walking beam assembly wherein a pair of support rollers are mounted at opposite ends of a beam extending in the direction of movement of the conveyor, and the guide rail mechanism is coupled to the beam between the pair of support rollers.