Abstract: An annulus of individual seal sections mounted in sealed end to end abutment is disposed between coextensive side wall portions of a liquid storage tank and a floating roof, the seal sections being individually removably mounted on the roof side wall.

Abstract: A dry system for forming and transferring images is provided. The system comprises a photoactive component comprising a tacky photohardenable layer on a selected carrier sheet and a transfer component comprising a frangible color layer on a selected carrier sheet. The two components are disposed with their photohardenable and color layers in air-free contact with one another and then subjected to irradiation with actinic radiation in accordance with a selected image pattern so as to cause selected portions of the photohardenable layer to harden and fuse to confronting portions of the color layer. Then the two components are separated whereby the fused portions of the color layer are separated from its carrier sheet and transferred to the photoactive component. Thereafter the color layer remaining on the transferable component is coated with a pressure-sensitive adhesive.

Abstract: A mud pump piston comprising an annular elastomeric ring having an annular circumferential surface defining an acute angle circumferential tip of relatively small area which engages the pump cylinder wall and an annular anti-extrusion ring connected to and displaceable with the elastomeric ring, the elastomeric ring being configurated to correspond with and rest against a dish shaped surface of the anti-extrusion ring presenting a bevelled or diagonal slope extending from the outside diameter (acute to the axis of the mud pump piston) spanning substantially more than half of the radial distance occupied by the annular elastomeric ring and the annular anti-extrusion ring, which diagonal surface merges with a flat surface normal to the axis of the mud pump piston whereby hydro-planing is reduced because of the increased unit pressure load on the small tip area, along a line contact, the tip is automatically wear compensating, friction is substantially reduced by reason of the smaller high pressure wipe area, lo

Abstract: An easy-opening can end includes a dispensing opening covered by a pivoting tab located on the interior side of the end. The pivoting tab is adapted to be pushed inwardly so as to break the seal at the dispensing opening and subsequently pivoted to the open position in response to movement of a finger engageable portion. The tab is fastened to the can end at an area of pivotal attachment. The area of pivotal attachment is connected to the can end by a peninsular region and separated from a part of the can end by a score or a lance line. Prior to pivoting the tab, the area of pivotal attachment is depressed at the score or lance line to vent the can.

Abstract: A cover for a drinking vessel of heat-insulating material comprising a cylindrical wall with elements at its lower end which cooperate with complemental elements at the upper end of a drinking vessel to provide a detachable bayonet joint. Integral with the upper end portion of the cylindrical wall is an inclined flat wall formed with a drinking opening and a relief vent in diametric alignment. Depending from the inclined wall substantially midway between said opening and vent are a pair of spaced lugs each having a journal recess opening onto its lower edge. A lever has a pair of studs extending from its opposite side faces and received in said recesses with snap fits. Upstanding from one end of the lever is an arm which projects through the drinking opening and carries a valve member on its upper end which is of greater extent than said drinking opening and normally engages the upper surface of the inclined wall about the drinking opening.

Abstract: A can end of the easy opening type comprises an end panel having a preformed dispensing opening and a push tab member having an integrally formed rivet for attachment to the end panel. In one embodiment, the end panel includes a peninsular hinge portion having a rivet receiving opening therein such that all deformation during opening is substantially limited to the hinge portion rather than the push-tab member. In another embodiment, an actuator opening is located between the dispensing opening and the rivet receiving opening of the end panel so as to permit a finger engageable protuberance on the push-tab member to extend therethrough.

Abstract: Disclosed is an inverted cup-shaped cover of deformable material to be fitted over an open socket housing end of a pivotal ball joint assembly. The cover has a pair of opposite end openings, one of which is considerably smaller in diameter than the other and receives therethrough in sealed relationship the shank of a ball stud protruding from the housing through an open end thereof. The cover has a gently curved longitudinal sectional configuration and is flared toward its other end opening at which it is fitted over the open end of the housing. A ring is embedded in the flared portion of the cover and has an inner circumferential edge exposed toward the interior of the cover. This inner edge is sharp-angled and has a diameter slightly smaller than the maximum diameter of the housing at the open end thereof. This ring is formed of resilient material, for example, spring steel.

Abstract: A valve seal mechanism for use in pressurized fluid systems subject to fire risk, the seal having a soft seat to provide essentially zero leakage at normal operating temperatures and a backup hard metal seating surface capable of holding leakage to extremely low rates in the event of temperatures high enough to destroy the soft seat material. The seal mechanism is in the form of a hard metal seal ring adapted to fit within an undercut circumferential groove in a valve seat. The metal seal ring has a central inner circumferential rib adapted to extend through the groove opening for mating engagement with a sealing surface on the circumference of a valve disc. The rib of the metal seal ring itself has a circumferential undercut groove into which is tightly fitted a seal ring of material softer than the metal of the seal ring, the soft seal ring protruding beyond the adjacent inner surface of the rib to provide a primary valve seat surface.

Abstract: The invention provides a new apparatus and method for forming thin metal parts of simple or intricate shape and depositing the same onto selected receiving surfaces. The parts may be in the form of wire leads which are bonded to the receiving surfaces. The invention consists in providing a hollow tool which includes a porous body with an exposed surface having a selected two-dimensional or three-dimensional geometry, immersing the surface of the porous body in a melt of a metal which will not wet the surface, pulling the tool away from the metal while applying a suction force to the porous body so that a portion of the melt will adhere to the surface, bringing the tool into contact with a receiving surface, and cooling the surface and removing the suction force so that the adhering portion of the melt will be deposited as a solid or partially solidified body onto the receiving surface.

Abstract: A mechanical seal assembly for installation about a shaft includes at least one floating seat having intersecting axial and radial seat sections defining an L-shaped seat, the opening of the L-shape receiving a packing therein. The packing is of a rubbery, elastic material and includes a cylindrical inner circumferential surface; a front surface extending generally radially outwardly from one end of said inner circumferential surface and generally aslant toward the other end of said inner circumferential surface; a back surface extending generally radially outwardly from said other end of said inner circumferential surface and generally aslant in generally the same direction as said front surface, said back surface including at least one annular groove slit therein; and a cylindrical outer circumferential surface connecting said back surface with said front surface.

Abstract: An apparatus for applying closures to filled bottles. A slide cam cooperating with interchangeable roll-on and crimp-on closure applying heads which are mounted in a rotating turret so as to raise and lower the heads with respect to the bottles. Interchangeable slide cam inserts for the slide cam are provided to modify the slide cam depending upon whether roll-on or crimp-on closure applying heads are mounted in the turret.

Abstract: The disclosure relates to an enclosed cup like drinking receptacle having a cover provided with a drinking opening therein which is disposed near the peripheral portion of the cover; the drinking opening being controlled by a liquid dispensing valve and a pneumatic pressure relief valve, both carried by a common manual actuator such that both valves are moved in unison and the dispensing valve being moveable relative to its seat a short distance without breaking its seal relative to said seat and to provide for sufficient movement of the pressure relief or vent valve to vent pneumatic pressure from the interior of said receptacle and cover so as to prevent unwarrented flow of hot beverages or the like through said dispensing valve and said drinking opening and thereby allowing a person to drink through said drinking opening with the normal flow of a hot beverage or other beverage therethrough.

Abstract: Apparatus for causing drawn and ironed cans having rolled-back edges to be detected as faulty and discharged by state-of-the-art can transfer and coating systems. An arcuate shoe is disposed so as to frictionally engage, and cause the rotation of, can-receiving mandrels. A rigid, arcuate arm is disposed adjacent the path of the mandrels, far enough away to allow acceptable cans to slide over the mandrels but close enough to prevent cans having rolled-back edges from doing so. The cans which are prevented from fully seating upon the mandrels are then discharged from the mandrels by air pressure.

Abstract: A system for forming cans from metallic blanks, trimming them, and cleaning and drying the cans synchronously. An ironing, trimming and washing stage are connected in direct juxtaposition with one another, with no buffering conveyors therebetween. A single source of motive power operates all three stages through a common drive train. In the event of a jam in the ironing or trimming stages the drive is decoupled from the washing stage, and an auxiliary drive is engaged in order to continue the flow of cans through the cleaning stage until it is emptied. At this point the auxiliary drive may be disabled.In a preferred embodiment a number of unitized stations are provided, each producing a synchronous flow of cans which are then accumulated through branches of a conveyor, and transported to a common site for printing.

Abstract: An apparatus for laminating articles with plastic of the type having supply rolls, pressure rollers and pull rollers through which a web of plastic is drawn. Heat shoes heat the plastic prior to the pressure rollers to cause an adhesive side to become fluent. The heat shoes have a large heating surface and are filled with sand. A plenum chamber directs cooling air onto the bonded web between the pressure rollers and pull rollers. The upper rollers are carried by a spring biased slide while the lower rollers are journaled to the frame. An eccentric mechanism mounted in the slide lifts the slide and upper rollers for threading and cleaning. A threaded linking member is attached between the slide and the top of the frame for incrementally lifting the upper pressure roller to allow single side lamination.

Abstract: A heat transfer roller embodying a heat pipe is disclosed. The heat pipe is mounted on a shaft, and the shaft is adapted for rotation on its axis.

Abstract: Filling apparatus comprising a filling valve which controls the flow of a carbonated liquid from a reservoir to a container. The filling valve includes a tube which extends from the reservoir to the container for equalizing the pressure in the container as the container is filled. When the liquid in the container reaches a predetermined level, venting by the tube automatically ceases. A valve control automatically closes the valve in response to the reduced flow into the container as the pressure builds up within. The initial opening of the valve to permit the flow of liquid into the container and initial opening of the pressure communicating tube is controlled by the two different cams of the actuating mechanism.

Abstract: A dry system for forming and transferring images is provided. The system comprises a photoactive component comprising a tacky photohardenable layer on a selected carrier sheet and a transfer component comprising a frangible color layer on a selected carrier sheet. The two components are disposed with their photohardenable and color layers in air-free contact with one another and then subjected to irradiation with actinic radiation in accordance with a selected image pattern so as to cause selected portions of the photohardenable layer to harden and fuse to confronting portions of the color layer. Then the two components are separated whereby the fused portions of the color layer are separated from its carrier sheet and transferred to the photoactive component. Thereafter the color layer remaining on the transferable component is coated with a pressure-sensitive adhesive.

Abstract: The present invention constitutes a vacuum press for mounting and laminating graphic art objects such as photographs and the like. The press utilizes two pliable airtight membranes, a first membrane attached to and supported by a base frame and a second membrane positioned over the base frame, arranged to form an airtight chamber containing the workpiece. The second membrane is specifically chosen so as to have a contour-defining capability. Thus when the chamber is evacuated, exterior atmospheric pressure will collapse the chamber and compress the workpiece between the two membranes, and at the same time, the second membranes will image the upper surface contour of the workpiece so as to reveal any undesirable surface irregularities such as wrinkles or bubbles which might exist in the workpiece. This indication gives the operator an opportunity to remove the irregularities before mounting or laminating occurs.