Abstract: A register includes a faceplate having a central area with openings to permit air flow, a box-like housing attached to one side of the faceplate including walls extending about the periphery of the central area, and adjustable dampers supported within the housing between opposed walls for controlling the amount of air flow through the register. The dampers are connected to an adjustment wheel mounted to one of the housing walls. As the adjustment wheel is rotated, a spring member connected between the adjustment wheel and the dampers causes the dampers to rotate about pivot rods extending from each end of the dampers through opposed housing walls. The dampers are assembled into the housing by inserting one pivot rod through a bore in one wall and moving the other pivot rod along an opposed wall within a guide channel which guides the pivot rod into registration with a bore in the opposed wall.

Abstract: A repair fitting is provided for sealably connecting ends of a pipeline, when a damaged section of the pipeline has been removed. In a preferred embodiment, the pipeline ends are connected using the repair fitting with two stab fittings. The repair fitting includes a first and second piston and a first and second cylinder, wherein the first piston is slidable in the first cylinder and the second piston is slidable in the second cylinder. In an alternate embodiment, two fusion joints are used with the repair fitting to sealably connect the ends of the pipeline. A method is provided for making a repair fitting and a method is also provided for repairing a damaged section of a pipeline.

Abstract: A plastic pipe end forming tool to form both inside and outside bevels on a pipe end. An elongated body has a cavity constituting a cylindrical channel. A pair of opposed protrusions extend into the cylindrical channel to form a V-shaped space to receive the pipe end therein and to allow rotation of the pipe in the cylindrical channel and thereby form bevels on the pipe end.

Abstract: A coupling for securing a plastic pipe. The coupling has a rigid hollow coupling shell with a passageway through it. A rigid stiffener tube is positioned internally of the shell, the stiffener tube having an external diameter slightly less than the internal diameter of the pipe. The stiffener tube has an external circumferential groove spaced from its outer end. A toroidal elastomeric seal is positioned within the stiffener tube circumferential groove. When a pipe end portion is inserted into the coupler shell, the stiffener tube extends telescopically within the interior of the pipe end portion and the seal engages the interior of the pipe to seal the interior of the pipe to the interior of the stiffener tube. A rigid gripper positioned within the coupler shell engages the exterior surface of the pipe and prevents the pipe from being extracted from the coupler shell.

Abstract: A coupling for securing a plastic pipe. The coupling has a rigid hollow coupling shell with a passageway through it. A rigid stiffener tube is positioned internally of the shell, the stiffener tube having an external diameter slightly less than the internal diameter of the pipe. The stiffener tube has an external circumferential groove spaced from its outer end. A toroidal elastomeric seal is positioned within the stiffener tube circumferential groove. When a pipe end portion is inserted into the coupler shell, the stiffener tube extends telescopically within the interior of the pipe end portion and the seal engages the interior of the pipe to seal the interior of the pipe to the interior of the stiffener tube. A rigid gripper positioned within the coupler shell engages the exterior surface of the pipe and prevents the pipe from being extracted from the coupler shell.

Abstract: A coupler for securing at least one pipe having a planar end. A hollow rigid coupler shell and a rigid tube stiffener are secured in the shell by a hub member, the stiffener having an external diameter less than an internal diameter of the pipe. The hub member has an internal diameter less than an external diameter of the pipe, the hub member having at least one tubular extension which will engage the pipe planar end. The coupler shell has a narrowing internal portion with a separate straight internal portion. At least one hollow follower is provided in the coupler shell straight portion adjacent the hub member tubular extension and at least one flexible hollow boot is movably retained within the coupler shell internal straight and narrowing portions, with a plurality of serrations being provided on an interior surface of the boot.

Abstract: The present invention is a unitary pipe coupler having an internally mounted hollow tube stiffener which extends through the coupler. The stiffener serves as a guide over which ends of the pipes slide as the pipes are inserted into the coupler and provides communication within the coupler between the two pipes. As the pipes are inserted into the coupler, each pipe passes consecutively through an opening provided in the coupler, an O-ring, a plurality of rigid backward oriented gripper serrations provided on a gripper, a plurality of backward oriented flexible sealing serrations provided on a front boot seal, until the end of each pipe rests against a flexible boot seal which abuts a hub for mounting the stiffener to the coupler. The gripper serrations prevent the pipes from being pulled or pushed outwardly away from the coupler.

Abstract: An air diffuser constructed from single piece of material, wherein the mounting member and diffuser sections are formed in a series of stamping operations and are interconnected by a plurality of integral links.

Abstract: A latch and lock assembly for use with suitcases, briefcases and the like having a lower member secured to the case and an upper member secured to the lower member and being axially slidable relative to the lower member for latching and unlatching the case. A male member formed in the upper member is selectively engageable with a female member on the case upon axial movement of the upper member. The upper member is urged toward latched or unlatched positions by a spring disposed against a ramp-like projection on the male member having oppositely beveled sides. Disposed within the upper member is a rotatable lock cylinder urged toward a locked or an unlocked position by a cam follower acting against a resilient cam surface.

Abstract: A corrosion proof meter riser for attachment to a subsurface polyethylene pipe carrying fluid at high pressure, which comprises a length of selected polyethylene tubing adapted to be attached at a first end to said polyethylene pipe, and heat seal means and cylindrical seal for attaching the second end of the polyethylene tubing to a first end of a selected length of fiberglass tube of substantially the same radial dimensions. The fiberglass tube is molded with a circumferential ridge near its second end. A riser body, comprising a metal pipe of suitable interior diameter has a coupling at one end which is screwed to the pipe. The coupling has an internal shoulder which cooperates with the ridge on the outer surface of the fiberglass tube, so that when the joined fiberglass and polyethylene tubing is inserted into the body, the ridge rests on the shoulder and can be locked in position by a nut to seal that end of the body.

Abstract: This invention relates to a ball type shut off valve. The valve includes a body having a flow passage therethrough defining a seat. A ball is loosely held within the flow passageway by the two ends of a shaped, flat strip spring which is held in a longitudinal diametral slot, in a cylindrical shaft positioned in and sealed to the body, with the axis of the shaft at right angles to the longitudinal axis of the body, and to the flow path of the fluid. Rotation of the shaft causes the strip spring to rotate and to control the position of the ball relative to the seat. Rotation in one direction causes a first end of the spring to move the ball away from the seat. Rotation of the shaft and the spring in the other direction causes the second end of the spring to move onto the sea and to hold the ball against the seat by the compliance of the second end of the spring.

Abstract: A meter riser for connecting normally buried plastic pipe to metallic couplings which are normally disposed above the ground for connection with utility meters, such as gas meters and the like, and comprising means for connecting the plastic pipe being encased in a metallic sheath, and having insulating means disposed around at least a portion of the metallic sheath and plastic pipe in the proximity of the connecting means securing the plastic pipe to the metallic coupling for protecting the plastic pipe against adverse environmental conditions.

Abstract: A safety valve for pressure fluid flow lines and which may be utilized in combination with a punch tee, said valve being responsive to pressure differentials acting thereacross for automatically closing to preclude accidental loss of pressure fluid from the line. The valve comprises body means adjustably secured in communication with the pressure fluid of the flow line, valve seat means provided on the body means, cage means carried by the body means, ball means loosely disposed in the cage means to provide a normally open position for the valve and responsive to pressure differentials thereacross for automatically engaging the valve seat to provide a closed position for the valve, locking means adjustably disposed in the proximity of the body means for providing a predetermined positioning or setting for the body means for calibrating the pressure responsive sensitivity for the ball means, and means for selectively opening the valve against said closing pressure differential.

Abstract: Improvements in a ball-type shut off valve including a resilient seating means whereby an O-ring is included in conjunction with the seat to provide both metal-to-metal and metal-to-O-ring seating. Also included is a removable ball carrying means carried by the actuator arm, whereby straight through assembly of the actuator arm may be made directly through the valve operator opening thereby reducing the possibility of damaging seals on assembly and disassembly.