Abstract: The disclosure relates to an insulator means for electrostatic precipitators wherein a column is centrally supported on a base structure above which a plurality of concentric generally cylindrical and circular in cross section discharge electrodes are electrically coupled to and suspended from radially disposed arms supported on said column; said discharge electrodes being adapted to operate between respectively circular in cross section collector electrodes; said arms being supported on said column by means of a hollow insulator having a bore therethrough and a high voltage conductor extends upwardly through said bore of said hollow insulator; said conductor being electrically coupled with said arms; and grease like dielectric material packed in said bore of said insulator and surrounding said conductor therein; and a sheath surrounding said conductor and disposed between said conductor and said grease like dielectric material; the disclosure also relating to means for mechanically coupling said insulator to

Abstract: A ball type check valve is provided featuring a simple rugged structure which can be easily fabricated and finished to have excellent fatigue strength and resistance to the stresses of continually repeating pressure fluctuations. The key to the success of this valve is the basic monobloc body used therein. Thus, one single compact body block is fashioned with a longitudinal opening extending therethrough, the median portion of which is a smooth cylindrical bore designed to house the ball stop, biasing spring and associated movable valve parts while the approach sections of the opening leading thereto from either end are of larger cross-section. The valve is then completed by incorporating upstream and downstream tail pieces enclosed within said approach sections and held in end to end direct contact sealing relationship with annular shoulder areas at either end of said median portion by means of suitable back-up attachment devices engaged with said body block.

Abstract: A polyolefin composition having excellent stability against degradation caused by exposure to heat and oxygen in the presence of copper, which composition is stabilized with a synergistic stabilizer system containing at least one phenolic antioxidant and calcium stearate.

Abstract: Novel coupling agents for use in filled polymers to improve physical properties e.g. melt flow and impact strength, which agents are organic borates containing at least one functional group reactive with the filler and at least one functional group compatible with the polymer.

Abstract: Polyolefins pigmented with copper phtalocyanine complexes are rendered stable against heat and oxidation by addition of a metal chelating agent.

Abstract: The insulation of electrical cables which are utilized in environments likely to cause extraction of stabilizer systems is achieved through the use of compositions in which a disubstituted alkylhydroxyphenyl alkanoyl hydrazine is used as extraction resistant stabilizer for ethylene-propylene copolymer coating materials. Equivalent nomenclature for the preferred stabilizer is disubstituted di-t-butyl hydroxy hydro cinnamoyl (DTBHC) hydrazine. The DTBHC hydrazine is substantially the only stabilizer used in the stabilized compositions.

Abstract: Polypropylene molding compositions of improved impact strength are obtained by subjecting certain block copolymers of ethylene and propylene to controlled oxidative degradation.

Abstract: A three-piece tote bag and method of construction is described. The bag includes two end panels which are assembled to a body panel with zippers. The periphery of the end panels are provided with zipper halves which engage cooperating zipper halves along the side edges of the body panel to form the bag. Each of the three panels are produced in a flat condition and contain stiffening means and insulative material between outer cover and inner liner sheets. The panels are sealed about their peripheral edges and the zipper halves are stitched to the panel edges.

Abstract: An extraction resistant, smoke resistant linear polymeric phenolic antioxidant containing sulfonic acid groups or salts thereof in at least a portion of the recurring phenolic ring groups.

Abstract: A hindered phenolic antioxidant stablizer for polyolefins is rendered extraction resistant by complexing it with an agent containing complexing groups derived from N-vinyl-2-pyrrolidone or a N-dialkyl substituted amino alkyl ester of an .alpha.,.beta.-unsaturated carboxylic acid.

Abstract: A double walled insulated container comprising an outer housing having a bottom with integral upstanding peripheral walls with a corresponding inner container having a bottom and integral upstanding peripheral walls. The inner container is provided with a rim structure having a channel formed on its underside. The channel functions to locate the inner container bottom and peripheral walls in a spaced-apart relationship from corresponding surfaces in the housing. Decoratve material is placed between the spaced-apart walls and the inner container and housing are bonded together at their upper edges to form a decorative unitary insulated container. A lid is provided for the container.

Abstract: A container for dispensing pourable materials, ideally liquids, having a cup-shaped lower portion with a bottom wall and a continuous upstanding peripheral wall terminating at an upper edge, a seal engaging the upper edge in a liquid type manner, a pouring spout extending upwardly from the seal, an upstanding wall integral with the seal and surrounding the pouring spout, a small opening in the bottom of the wall which permits any liquid collected within the area inside the wall to drain through the hole and into the cup-shaped portion, and a pivotally mounted cap movable from an open position (to permit liquid to be dispensed from the pouring spout) to a position over the pouring spout to seal the pouring spout and the wall opening from the atmosphere. The cap is maintained in the open position by a portion of the pivoting mechanism engaging the top of the seal in a cam-like action.