Abstract: A coiled tubing injector for inserting and withdrawing a continuous length of tubing from a well, the coiled tubing injector having a tubing insertion and withdrawal assembly with a tubing conveyor assembly moving the tubing upward for withdrawal from the well and downward for insertion into the well. The tubing conveyor assembly has a fixed conveyor and an opposing floating conveyor each with a plurality of gripper blocks that engage the tubing. Each gripper block has a groove having a radius of curvature substantially that of the tubing to provide a close mating relationship of the gripper blocks and the tubing. The floating conveyor is moveable away from the fixed conveyor to create a gap therebetween, and the frame is provided an opening aligned with the gap between the fixed and floating conveyors so that a medial portion of the tubing can pass through the opening into the gap.

Abstract: A tiltable bed frame assembly is provided which permits one to adjust the angular disposition of a mattress between a horizontally disposed position and an inclined position, while at the same time permitting one to utilize a conventional mattress, headboard and footboard of a bedroom suit. The tiltable bed frame assembly comprises a main frame and a mattress frame interconnected by a plurality of telescoping members and pivoting support members disposed between the main frame and the mattress frame. The telescoping members are connected by a linkage assembly so that the mattress frame can be pivotally moved between the horizontally disposed position and the inclined position. A locking assembly is supported by the main frame for selectively engaging the linkage assembly and thereby securing the mattress frame in the desired position relative to the main frame.

Abstract: A tiltable bed frame assembly is provided which permits one to adjust the angular disposition of a mattress between a horizontally disposed position and an inclined position, while at the same time permitting one to utilize a conventional mattress and the headboard and footboard components of the user's bedroom suit. The improved tiltable bed frame assembly of the present invention comprises a main frame, a mattress frame supported by the main frame, an inclined ramp assembly supported on the main frame so as to be disposed below the mattress frame and selectively moveable along the main frame, and a ramp engaging assembly connected to the mattress frame and supported on the inclined ramp assembly for elevationally moving a selected portion of the mattress frame relative to the main frame as the inclined ramp assembly is moved along the main frame.