Abstract: The present invention is a high integrity storage container which is particularly well adapted for storage of chemical, radio-nucleide, or other types of waste materials. The body portion will typically be of right rectangular configuration having an open top. An inwardly oriented flange is located completely around the upper periphery of the container body where it acts with a corresponding mating surface on a lid to provide sealing surfaces. A key element is a novel folded gasket located between the mating surfaces of the body and lid. This is oriented with the fold portion toward the outer periphery of the container where it has minimum exposure to the contents. Preferably, the lips or edges of the gasket are bonded to the lid and body flange by a pressure sensitive adhesive to form a tight seal. A resilient strip is located within the folded area of the gasket to urge the adhesive coated surfaces into intimate contact with the mating surfaces of the lid and body flange.

Abstract: A pair of U-shaped dentition trays are joined by a bendable bridging member that is reinforced by molded portions that function to maintain the trays biased apart and in tooth contact in a person's mouth.

Abstract: This invention is an adjustable frame member or jamb for a wall opening and a method for making it. It consists of two side-by-side jamb members, a spring and a stop. The stop is attached to one jamb member in an overhanging or step-like relationship. The spring is inserted into the back of this member so that an elongated portion defines a slot with the overhanging portion of the stop. Narrow kerfs are appropriately let into the back of the jamb and the door stop for anchoring the arm portions of the spring. The second jamb member is slid into the slot defined by the stop and spring, where it is firmly gripped by the spring. By forming one mounting point for the spring in the back of the stop, a short lever arm is maintained to better resist any prying or dislodging forces applied against the spring caused by the other jamb member. The artical can conveniently be made by first attaching one edge of the stop to a jamb of the narrowest width expected in use.

Abstract: A fluid pressure transducer of the null balance type in which a fluid whose pressure is being sensed acts against one face of a diaphragm and a balancing control fluid acts against the opposite face. Control fluid pressure is uniformly distributed against the control face of the diaphragm by a porous element, preferably made of a sintered material. Movement or displacement of the diaphragm opens a sensing element and may be controlled by use of a similar pressure distributing porous element placed on the sensing side. The volume defined between the two porous elements limits maximum diaphragm travel and displacement. Transducers made according to the invention have high sensitivity. The transducers are particularly well adapted for measurement of pore pressure in earth fills or natural geological environments.

Abstract: A bridging member pin supported above a dental impression, has an easily frangible, bendable and twistable end portion permitting a variety of angular dispositions of a tapered dowel relative a dental impression cavity.

Abstract: A pair of arcuate concavo-convex trays formed of a plastic foam material shaped to be inserted into the mouth and to encase both the upper and lower jaws. The trays are normally disposed in mirror-like opposition and joined anterior-to-anterior by a bridge member adapted to bow, bend or fold so that the exterior surfaces of the trays are juxtaposed bottom to bottom. The trays are used to receive and contain a medicament for topical application to a person's teeth, fluoride gel being a typical topical material.

Abstract: The invention is an improved collet design for arc welding torches. The collet tip is asymmetrically tapered. The collet tip bears on the interior surface of an adjacent sleeve which is appropriately flared in the rearward direction so as to receive the tapered collet tip. The sleeve also has an opening through which the electrode passes. The asymmetry of the collet-sleeve interaction causes the collet to be laterally displaced thereby gripping the electrode between the collet and the sleeve opening.The improved collet also includes a spring fastener means for connecting the rear end of the collet to the back cap of the torch head.

Abstract: A gas consuming electric welding torch has a swiveling torch head which is angularly oriented with respect to the torch handle. Inert gas and electrical current flow through a conductive passageway into a swivel body. A swivel fastener extends through the swivel body and is fastened to threads in a piece extending radially from the torch head. Insert gas may flow through the swivel fastener and into the torch head.

Abstract: This instrument is a dental hand piece having an angularly disposed working end provided with an easily rotated broad-faced but thin tamping or packing tool for forcing packing material such as cord or yarn strands into the sulcus or gingival crevice between a tooth and the crest of the gingival or gum tissue surrounding the tooth.

Abstract: A folded gasket formed of a length of flexible fabric-like material is disclosed as being disposed between juxtaposed surfaces at the juncture of the lid periphery to a container mouth to adapt the container to withstand the rigors of transport, storage and burial as in the case of the nuclear waste material and the like.

Abstract: An improved hanger having two pieces engageable and slidable with respect to each other. Curved guide grooves in one piece are engaged by projecting portions of leaf springs on the other piece. The curved guide groove corresponds to an arc of a circle. Each guide groove has one or more detents intermediate the ends of the groove.

Abstract: An apparatus is disclosed for a two-stage crushing of empty cans along their longitudinal axes to collapse them to minimum bulk. The apparatus has a stanchion fixed to a base and long and short lever arms pivotally mounted on the stanchion. A pivotal linkage interconnects the long lever arm with the short lever arm. First and second crush heads are pivotally mounted between the base and the long and short lever arms with a pantograph type linkage to control the attitude of the crush heads.In the first stage of crushing, the can is placed between the first of the crush heads and the base, and the long lever arm is moved toward the base to partially crush the can axially. In the second stage, the partially collapsed can is placed between the base and the second crush head. The long lever arm is moved toward the base thereby moving the short lever arm toward the base and the can is thereby completely axially crushed.

Abstract: A vibratory ribbon speaker according to this invention as disclosed comprises a series of permanent magnets secured on opposite faces of a pair of soft iron bars mounted in edge-opposed, spaced-apart relation providing an air return flux path and a working air gap in which is suspended an elongated wavy or corrugated non-magnetic ribbon, several feet in length, flexibly and resiliently supported in said air gap at numerous spaced-apart stations along the ribbon length.

Abstract: A one-piece gutter hanger bracket has a nail guide portion located in its mid-section. The nail guide positions the head of a nail angularly upward with respect to the main body of the hanger bracket so that the nail head is easily accessible to a driving tool. A nail driven through the nail guide provides additional support to the mid-section of the bracket.

Abstract: An animal feeding system employs an openwork manger suspended in such manner as to cause a feeding animal to raise its head in grasping hay between opening of the manger and upon pulling tending to tear hay flakes and bunches apart. Means is provided to discourage animal penetration to beneath the manger thus precluding fouling of that area and possible animal bunching in restricted space.

Abstract: An arc welding torch having electrode gripping means is located rearward in the torch head and remote from the welding operation which occurs in a carefully formed, unerratic, cooling atmosphere of shielding gas enveloping the electrode and flowing in collimated fashion.

Abstract: An improved sanding block is disclosed for receiving and tensioning a continuous or endless sandpaper or other abrasive wrap-around belt about the sanding block's periphery. The block effectively uses two parts, so shaped that when assembled within an endless abrasive belt, they provide a wedging action which effectively elongates or expands the periphery of the tool to properly tension the belt.

Abstract: A wooden structural member or joist having a continuous tension chord and a continuous compression chord which are spaced apart and parallel. The tension chord and compression chord form the effective top and bottom of the joist, the actual orientation depending on the type of load imposed upon the joist. Dentations or dentated panels connect the side edges of the tension chord to the side edges of the compression chord, thus forming the two sides of the joist which has a hollow rectangular cross sectional shape. The dentations are planar with two parallel edges and two non-parallel edges tapering together forming a broad end and a narrow end. The face of the broad end is glued to the side edge of the compression chord, and the face of the narrow end is glued to the side edge of the tension chord. The sides of the joist are discontinuous because of the dentated shape. The dentations are coordinately spaced to allow pipes, conduits, ducts and other equipment to pass transversely through the joist.

Abstract: A suction and blower fan device of simple construction is disclosed for use with a rotary mower blade mounted upon an upright shaft within a mower housing. The fan device operates to improve the cutting efficiency of the mower blade and functions to produce scouring of the mower housing to a degree, reducing or preventing the objectionable accumulation of clippings on the inner housing surfaces.

Abstract: A bundle for shipping and the storage of a plurality of elongated pipe lengths of a common size arranged in tiers is disclosed in which the longitudinal axes of the pipes in the bundle are disposed parallel to an elongated base formed of spaced-apart transverse sleepers. The pipes in each tier are separated by divider blocks standing on the sleepers and separating overlying sleepers from those there-below a distance substantially equal to or greater than the pipe diameter. Strapping encircles the sleepers and the dividers and the pipe therebetween to secure the bundle in a flexible manner throughout its length to accommodate the rigors of hoisting and transporting its storage in multiple bundles and on uneven supporting surfaces.