Abstract: A latch unit for releasably securing a plastic lid to a tank-like container or for releasably securing another covering over the container. The container may be the tank of an electric vacuum cleaner. There are a plurality of the latch units spaced along the edge of the lid or covering and engageable with a bead around the open end of the tank. Each latch unit includes a cage at the edge of the lid or of the covering and includes a latch element molded of resilient plastic material. One end of the latch element protrudes from the cage and is hand engageable for moving the element between releasing and holding positions. The other end of the element is provided with a hook that engages a cage formation to form a pivot for the element. A normally bowed intermediate section of the element connects opposite ends of the element, and is stressed to provide a biasing force that holds the element mounted to the cage.

Abstract: A low- to medium-level radioactive waste sealing container is constructed by depositing a foundation coating consisting essentially of zinc, cadmium or a zinc-aluminum alloy over a steel base, then coating an organic synthetic resin paint containing a metal phosphate over the foundation coating, and thereafter coating an acryl resin, epoxy resin, and/or polyurethane paint. The sealing container can consist of a main container body, a lid placed over the main body, and fixing members for clamping and fixing the lid to the main body. Each fixing member may consist of a material obtained by depositing a coating consisting essentially of cadmium or a zinc-aluminum alloy over a steel base.

Abstract: Apparatus for mounting supply and exhaust air valves or other ventilation elements in ventilation conduits comprising one or several anchor devices which are attached by a base onto the back side of the element. From the base extends a triangular intermediate section. One triangle side borders the base, and a second triangle side borders an outward extending wing with circumferential orientation relative to an opening in which the element is to be fastened. The wing is divided by slots into tongues, and the free ends of the tongues are pointed and bent outward in direction toward the walls of the opening. Different configurations of the anchor devices are shown.

Abstract: An improved sewer relief valve which is vandal-proof and automatically opens responsive to a back flow of sewage and drain water within a plumbing system.

Abstract: A tape cassette case has a main wall, a cover wall, with peripheral walls which extend from each, and a hinge formed from a back wall to connect the main wall to the cover wall. A locking means is provided and comprises a slider member slidably mounted onto a support member that forms part of one peripheral wall. The locking means is biased away from the one peripheral wall in a direction perpendicular to the sliding direction of the slider member by coil springs and pins. There are two projecting members projecting from the other peripheral wall, so that when the case is closed, the slider member may be slid in one direction to engage with the projecting members, thereby locking the main wall and the cover wall together, when the slider member is moved in the opposite direction the slider member is disengaged from the projecting portions, thereby allowing the case to be opened.

Abstract: A compacting device adapted to be inserted into a barrel or similar container is provided with a base member having a plurality of upstanding rods secured to the base member in equally spaced relation about the periphery thereof. A support ring surrounds the upper ends of the rods, with each rod being secured to the interior surface of the ring. One or more compacting plates are provided which are adapted to fit within the ring for movement in a direction parallel to the rods. A plurality of spring locking plates equal in number to the rods are secured to the upper surface of the compacting plates for engagement with the rods which are provided with threads along substantially the entire length thereof. Thus, when loose material is placed in the container, and a compacting disc is inserted into the compacting device and pressed downwardly by any suitable press or the like, the material within the container will be compacted.

Abstract: Mechanism for attaching a valve assembly to a pressurized container having a neck closed by a puncturable diaphragm and surrounded by a radially outwardly extending circumferential rim. The mechanism includes a body portion having a partial skirt with an inward arcuate lip to engage beneath one side of the circumferential rim of the container and a central upstanding boss which is internally threaded to receive the threaded stem of the valve assembly. A locking arm is pivotally received on the central boss and has a downwardly displaced inwardly extending lip to engage beneath the circumferential rim of the container. In the normal position of the locking arm, its lip is radially spaced less than 180.degree. from an opposite end of the arcuate lip of the body to define an entrance opening for receiving the rim of the container therethrough.

Abstract: A mobile travel trunk is described including a water tight trunk or trailer compartment including a load adjustable suspension system. The forward end of the travel trunk includes a hitch assembly which is adapted to be secured to the bumper of a vehicle or the like. The rearward end of the trunk has a trapezoidal shaped opening which is defined by a U-shaped lip extending around three sides thereof. A spring loaded trapezoidal shaped door is pivotally mounted to the lower end of the rear wall of the trunk and includes a U-shaped lip which is adapted to be received by the U-shaped lip extending around the opening. When the door is in its closed position, a compression latch assembly causes the door to compress a resilient seal member extending around the door opening to provide a water tight and dust proof seal. The suspension system may be easily removed from the travel trunk to enable the travel trunk and the suspension system to be separately stored.

Abstract: A fluid reservoir assembly including a reservoir cap for closing a cylindrical opening of the reservoir, the reservoir assembly including an outward flange formed on an outer periphery of an upper portion of the reservoir, nail members provided on the reservoir cap and having a tip portion bent radially inwardly, a biasing member biasing the nail members into engagement with the outward flange and a nail operating mechanism connected to the nail members for moving the nail members against the biasing member.

Abstract: A video cassette packaging device including a single molded plastic part 10 having four living hinges 28, 50, 72 and 74 which allow the part to be folded along such hinges to provide a container having two push-button type latches 14 and 16 which are resiliently held in the locked position by a single biasing element 12. The latching components 14 and 16 automatically engage the closure portion 18 of the container as it is closed about a cassette and urge the closure portion toward its open position when the two latching buttons are simultaneously depressed. The exterior of the container is configured to be aesthetically pleasing while at the same time having provisions for receiving mailing labels and for matingly interacting with storage racks presently on the market.

Abstract: A lens cap has a disc-shaped cap body, a pair of sliding members opposed to each other on the cap body and slidable diametrically of the cap body, and a biasing member for biasing the sliding members in a direction in which they are extended outwardly from the cap body. The sliding members have connecting portions engageable with a connecting portion provided on the inner peripheral surface of the rim of a lens barrel. The lens cap is mounted on the lens barrel by engagement between the connecting portions. Engaging members are provided at the opposed ends of the sliding members and limit the outward extension of the sliding members from the cap body against the biasing means by mutual engagement therebetween.

Abstract: Apparatus is described for releasing a storage container from an inflatable upport such as a parachute, comprising a container for holding the inflatable support, an attachment mechanism extending through the container, linear slide means engaging the attachment mechanism and a storage container when tension is applied to the attachment mechanism, and means for holding the attachment mechanism in tension until the inflatable support is inflated, whereby the storage container remains fixed to the inflatable support until tension on said attachment component is relieved.

Abstract: A lock structure especially useful for locking a cabinet cover to a bottom plate makes it possible to integrate and separate the cabinet cover and the bottom plate quite easily, and also secures the cabinet cover and the bottom plate quite tightly to prevent any play between the two.

Abstract: A one-piece plastic closure mechanism is provided which incorporates two flexible living hinge sections so that the leaves of the closure mechanism can pivot through the angles required for locking and unlocking a container cover from a container base. The closure mechanism may be attached to the base by screws, staples, or the like or may be integrally molded with the container to eliminate any post-molding assembly steps. One leaf of the closure mechanism contains a slot which engages a protrusion such as a tab on the container cover to lock the cover and base when the mechanism is closed. The container is designed so that individual containers are nestable for shipment, storage, and display. The interior of the container cover is provided with a clip for holding a writing implement and with a series of vertically upstanding ridges so that documents can be viewed in an upright position when the container is open.

Abstract: A quick-change toilet system capable of being readily converted between a non-flushing toilet and a recirculating flushing toilet is disclosed. The system includes a waste holding tank with an open frame member mounted on the top thereof. The system utilizes a non-flushing toilet cover and a flushing type toilet cover, both of which have a similar locking pin arrangement which permits either type of cover to be removably secured to a locking bar permanently affixed to the frame member. The non-flushing toilet cover includes an opening having a conventional toilet seat and toilet seat cover disposed thereover. The flushing toilet cover, which is of the recirculating variety, is similar to the non-flushing cover but additionally includes a toilet bowl having a flushing fluid outlet. A manually operated pump draws flushing fluid from the waste holding tank through a filter and delivers a quantity of filtered flushing fluid to the toilet bowl for flushing purposes through the flushing fluid outlet.

Abstract: A releasable lid clasp device for trash containers or cans, arranged to secure the lids thereof against accidental dislodgment. The device is constituted as an elongate body having a generally transverse groove of suitable radius which defines a pair of facing jaws that are capable of engaging opposite surfaces of the bead of the container lid. The body includes a resilient hinge which enables opening and closing movement of one of the jaws with respect to the other as the hinge flexes. In addition, there is provided a manually engageable extremity portion on the body, by which the user can flex the hinge and thereby accomplish the opening and closing movement of the one jaw. The arrangement is such that a highly satisfactory securement of the lid can be attained, without sacrificing ease of operation or reliability, especially over prolonged periods of use.

Abstract: Latch device for hinged luminaire door comprises a pair of spaced spring steel members attached at their upper ends to the luminaire housing. At their lower ends the spring members are formed with ledges for releasably holding the luminaire door in closed position. A latch bar interconnecting the spaced spring members at their lower ends is movable to disengage the spring members from the door to allow it to swing open.

Abstract: A container and lid therefor in which the lid has annular or perimetral structure for mounting the lid on the container, as well as a dependent integral scoop for removal of a substance from a surface. The lid and scoop combination per se is especially intended for the removal of dog droppings, i.e. dog feces, from sidewalks, etc. in the urban environment. Thereafter, the lid-scoop member laden with dog feces may be fitted onto the open end of a used container such as a used standard steel can, e.g. a used and empty soup, vegetable or dog food can. The container lid features, in addition to the integral scoop, perimetral elements about the disc-shaped lid for securing the disc-shaped lid member to the circular top free edge of the open cylindrical container, e.g. a used standard steel can. These perimetral elements include inner and outer circular protuberances on opposite sides of an annular channel in the disc-shaped member.

Abstract: A partitioning insert is removably received in the base member of the container. The partitioning walls are larger at the top than at the bottom and terminate in posts which support the remainder of the partitions above the bottom of the container. The top of the container has a stepped flange which rests on and fits about the walls of the bottom of the container. At one end is a releasable latch and at the other is an interengagement between the two members. A part of the top of the container is at a lesser elevation than the remainder and has a vent opening, an air filter and a removable cover assembly.

Abstract: Provided is an adjustable motor cover designed to protect outdoor electric motors from sun and rain. The cover, made of a plastic material, is open-ended and has a generally LL-shaped configuration and is comprised of a pair of spaced parallel side panels and a top cover formed with longitudinally extending lateral recesses in which the side panels are slidably received. Detachably mounted within the cover interior are a pair of transversely-disposed motor clamps adapted to clampingly embrace an electric motor and, for this purpose, the motor clamps are formed with a base detachably mounted on the top cover inner surface, and concave sections oriented downwardly from the base, the concave sections having a curvature conforming closely to the accurate periphery of the motor accommodated within the clamp concavities.

Abstract: A releasable latch for a garbage can cover which includes a stop member affixed to the depending flange of the garbage can cover and a resilient latch member affixed to the depending flange of the cover at a point thereon diametrically opposite the stop member. The resilient latch member has a resilient latch arm with a latch element normally extending inwardly through an opening formed in the depending flange of the cover. The stop member and the latch element are adapted to engage the lower edge of the conventional outwardly turned rim formed on the upper end of the garbage can when the cover is moved upwardly. The latch element has a camming surface which moves the latch arm outwardly while the cover is being placed in closed position on the can. A finger grip is provided on the resilient arm to move the latch element outwardly out of contact with the rim to permit removing the cover from the can.

Abstract: This invention relates to a catch or lock mechanism used between a refuse or garbage can and the lid therefor. A substantially U-shaped bracket has the inner curve between its legs slidingly engaged with the undersurface of the lid bead carried by the lower edge of the lid. This may be by a threaded screw engaging with one leg of the U-shaped bracket and extending between the legs thereof to thereby form a sleeve sliding engaging the lid bead. Also, the U-shaped bracket may be movably carried by the U-shaped bracket or the can lid by the use of magnetic means. The U-shaped bracket preferably has a longer inner leg which is urged by spring or magnetic means into engagement under the bead at the top of the refuse can. The other leg of the U-shaped bracket is shorter and preferably terminates in an outwardly and horizontally extending portion for finger engagement thereof for releasing the lid from the can.

Abstract: The following specification describes a circuit breaker enclosure having a cover, which is latched closed by spring biased latch handles. The handles and cover move in response to gas pressure for relieving the pressure generated on tripping of the circuit breaker. The latch handles are arranged to point outwardly of the enclosure, when open, to provide a clear visual indication of their being open. The circuit breaker handle and enclosure handle are directly engaged with a common pivot pin for synchronous movement to enable the enclosure handle to indicate the trip condition of the breaker. When the cover is open, the handles are interlocked against movement to an ON position by a biased pivotable interlock plate. The cover in turn is latched closed through the interlock plate and a breaker handle plate, when the circuit breaker enclosure handles are in the ON position. A pair of spaced edge projections on the enclosure wall engage the cover sealing gasket to avoid a permanent compression set in the gasket.

Abstract: The invention provides an alternative to the brown bag lunch in the form of an insulated carrying plate having bottom and top members sealed together by releasible fasteners and defining sealed, separated compartments inside, there being a carrying handle incorporating a hinged lid which opens to expose a cavity occupying substantially the entire interior of said handle and useful as a storage compartment for utensils and condiments.

Abstract: A fixed bottle cover device of compressed air thermos bottle comprised a bottle cover having a stationary shaft, on its side edge, which is attached to a holding fixture generally provided in the upper side of the conventional thermos bottle body. The holding fixture includes an external clamp plate and an internal seat plate and between the said two members a coil compressed spring is equipped for controlling the disclosure and closure of the holding fixture so as to be arbitrarily united or severed the bottle cover and the thermos bottle body.

Abstract: A commercial trash bin is provided with locking arrangements which restrict the use of the trash bin to the authorized user thereof, and still permit the dumping of the trash bins without wasting any extra time by the garbage truck operator. The lids are provided with a special latch which is disabled to permit dumping through gravity action when the trash bin is lifted and inverted and dumped. In one case the mechanism includes a heavy spring which is compressed by the weight of the trash bin, and in another case a gravity operated latch releasing mechanism is employed. In each case, to open the trash bin while it is in the upright orientation, a key-operated release, either in the form of a padlock or a built-in lock mechanism, is used.

Abstract: An improved dispenser preferably having seven compartments that are each identified to correspond to a day of the week. The dispenser compartments are formed by partitions arranged within a flat cylindrical housing, the partitions extending outwardly as spokes from a center area thereof, the housing having at least one groove or track formed around a top lip area thereof for accommodating the edge of at least one circular disk that travels therein, said disk either accommodating another disk in an appropriate recess formed therein, or another disk is arranged to travel in a separate groove or track formed also in the housing top lip area, said disks being sandwiched together both having openings formed therethrough that, when aligned, form a passage to allow pills or the like to pass from within the dispenser, the invention including a safety locking arrangement for maintaining the disks together prohibiting alignment of said openings.

Abstract: 1. A chemical canister for generating gas in a noisemaker beacon comprising canister case for holding a chemical for generating a buoyant gas, a canister cover adapted to be mounted on said case, a watertight seal between said cover and said case, means for ejecting said cover from said case, and means for temporarily locking said cover and said canister; said ejecting means comprising a conical spring adapted to be compressed within its outer diameter, and said locking means comprising a rod extending from the bottom of said canister to said cover, a groove in said rod near said cover, a locking pin mounted in said cover having one end adapted to lock with said rod by means of said groove and having a piston at the other end, and a locking pin ejecting spring mounted on said pin for moving said locking pin out of engagement with said rod by means of said groove.

Abstract: A storage container for maintaining the sterilized condition of instruments or other articles. The container has a receiving tray and a lid with a unique sealing element that not only provides an excellent seal but also enhances the seating of the lid on the tray portion. Means are placed adjacent the interface of the lid with the tray for holding the lid above the tray during the sterilization process and for releasing the lid to seat in sealing engagement with the tray after the sterilization process. Mounted within the container is a combination relief and release valve to respectively control the amount of vacuum within the container and to release the vacuum in order to allow access to the interior of the container to remove the instruments or articles therein.

Abstract: An improved pneumatic tube carrier is provided for transmitting papers, currency and other articles between various stations at locations within a building or building complex. The carrier hull is constructed of identical mating sections each formed in a generally semi-cylindrical shape from a single mold. The semi-cylindrical halves are hinged together along one longitudinal interface. A closure mechanism is provided at the opposite interface and includes a catch spring biased toward the hull. An adjustment mechanism limits the movement of the catch relative to the hull. Adjustment is possible to correct for catch disposition variations with prolonged use. Proper adjustment allows the hull to be self-latching upon closure. Adjustment is effectuated with the hull closed through a perforation near the hinged interface of hull sections, whereby an elongated tool is inserted into the perforation and is used to alter the adjusting mechanism.

Abstract: Means for hinging or removably attaching a cover to a chassis comprising a retainer device including a pair of arms spring-urged away from one another. The retainer device is fixed to the chassis with the ends of the arms extending outward into openings in the cover. The arms can be manually pinched to disengage them from the cover openings to thereby permit the cover to be removed from the chassis. Utilization of a pair of retainer devices on the chassis enables one of the devices to be disengaged while the other remains engaged to thus hinge the cover relative to the chassis.

Abstract: A container for a cassette containing a recording tape which container consists of a hollow portion, a support for the cassette and a lid portion. The design of the support and lid portion and the hinged connection between the same and the hollow portion are such that in the closed position of the container the latter is closed on all sides while in its open position the cassette is held securely but is readily removable.

Abstract: A torsion spring for biasing closed the door of a videocassette. A central portion of the spring provides the hinge pin for pivotably mounting the door, while its two ends are fixed respectively to the door and housing.

Abstract: A weapon safety receptacle embodies a housing section having an upstanding rear wall connected at its lower end to a forwardly extending wall which is connected to an upstanding front wall that terminates below the upper end of the rear wall to define an access opening between the upper edges of the front and rear walls. A cover section has a top wall connected to a depending rear wall which engages a recess in the upper rear portion of the rear wall of the housing section. A depending front wall of the cover section extends alongside the outer surface of and terminates below the upper edge of the front wall of the housing section. A resilient member connects the cover section to the housing section and urges the cover section toward and into engagement with the housing section.

Abstract: A cassette, particularly a cassette for a wide recording tape, consisting essentially of a lid-closable housing of plastics material, snap latch means being provided which interact between the long side of the lid and the wall of the housing opposite the lid hinge, which means consist, according to the invention, of cams on the lid and grooves in the wall of the housing, which cams and grooves engage each other to produce, when the cassette is opened, an initial closing force by deformation of the adjacent wall of the housing, in order to make opening of the cassette more difficult.

Abstract: A cover device suitable for casting vessels or the like is constructed to have an annular edge portion connected to the vessel by spring means. The cover has also a central portion corresponding to opening of the edge portion and a locking means is provided for locking the central portion with said edge portion.

Abstract: An improved latching arrangement is provided for a rigid container having a lid including latching arms pivotally disposed at opposite sides of the container for engaging loops which depend from the periphery of the lid. Each of the latching arms is pivotally mounted to the container sidewall and has a flexible end that interferes, by a bending action, with the container sidewall providing a snap action which retains the latch arm in either a locked or unlocked position. In an alternate embodiment the latch arms are pivotally supported from the loops of the lid, and each have a pivot bar that engages securing hooks extending from the sidewall of the container.

Abstract: A quick-release vent structure and method for releasing a rapid pressure buildup within a vessel such as a storage bin. Vent covers are releasably seated over large vent openings presented by framework which is mounted to the vessel. Each cover is resiliently biased in place. Gas pressure in the vessel can lift the cover from the vent opening for pressure relief. If pressure raises the cover a distance greater than a predetermined amount, the biasing force is released from the cover by a quick-release mechanism and the pressure can blow the cover off without damage.The covers are preferably held in place by spring-loaded, snap action clamps. Each clamp includes a latch member that is pressed against the vent cover by an over-center spring. When the pressure force exceeds the spring force, the latch member is cammed to swing over-center and slides off the cover edge, thereby releasing the cover so that the gas pressure can blow it off and vent extremely rapidly.

Abstract: For opening and closing a lid on the cassette tape receiver portion of a tape recorder a casing having an opening portion is provided with a lid body having a projection formed at a side end to be rotated for opening and closing the opening portion of the casing. A spring plate rotatably supports the lid body through a hinge connection including a mandrel. The spring plate is directed downwards and its free end portion is bent upwards against the side end fixed in the casing, and an abutment provided in the casing engages the projection of the lid body when closing the lid body.

Abstract: A panel hole closure is composed of a rigid plate having an integral array of resilient fingers projecting from one surface of the plate inboard of the plate rim. A integral stiffener is provided for each finger which stiffens the finger against inward deflection toward the axis of the plate so that once the closure is seated in a panel aperture, it is difficult to dislodge. A plastic sealing ring encircling the plate rim may be melted and flow to provide a fluid-tight seal between the closure plate and panel.

Abstract: A container cover is provided which prevents young children from gaining access to the container's contents. The container has an opening at one end and a latch lip adjacent to the opening. The cover comprises a plate having at least one opening and a handle secured to the plate and having at least two grips, a releasing grip and a non-releasing grip. Two latching means secure the plate to the latch lip, one of the latching means is attached to the releasing grip and passes through the plate opening. The releasing grip has means for releasing the latching means such as lifting, sliding or rotating.The container may be used for containers for materials which may be harmful if handled or ingested.A particular application of the cover is on a magazine for soluble solids to be dissolved by a liquid, for example, in treating swimming pool water. The magazine is a component of an apparatus for dissolving and dispensing soluble material including a container having an upper and a lower chamber.

Abstract: The housing of a cassette for motion picture film or magnetic tape consists of two or more sections which are separably coupled to each other by detents each having a preferably elastic toothed hook which is provided on one of the sections and whose tooth or teeth can snap behind one or more shoulders in one or more sockets provided in the other section or sections. The hooks do not project beyond the general outline of the housing when their teeth engage the respective shoulders. The housing may consist of an inner casing which is received in an outer casing having two shells which are separably coupled to each other and/or to the inner casing, or of an inner casing and a one-piece outer casing which receives the inner casing and is separably coupled to the rear end wall of the inner casing.

Abstract: A closure locking and orienting device for securing the closure to a housing at an opening therein having a semi-circular groove on the periphery of the closure and a similar groove at the opening of the housing, the grooves being in opposing relation to form a circular groove about the closure. A bore extends radially through the housing and the closure, a further bore extending through the housing communicating with the circular groove and an elongated and substantially pliable member threaded through the further bore, received by the circular groove and extending about the closure to span the juncture between the closure and the housing with the other end of the pliable member extending through the radially disposed bore to lock the closure to the housing while orienting the closure with relation to the housing.

Abstract: A poultry transport cage of the type having a rectangular frame structure supporting openwork sides, ends, bottom and top and having a complementary hinged lid is provided with an improved latch which comprises a sliding latch having a horizontal portion with a vertical portion depending therefrom in the front containing a catch which engages a beam member in the top of the cage. Guide means depend from the sides of the horizontal portion and fit into slots in the lid for sliding motion therein. The lid contains a spring member biasing the sliding catch to hold it in engagement with the beam in the top of the cage. In the illustrated embodiment all parts are made of molded plastic and the spring means is molded integrally with the lid.

Abstract: A housing for holding containers therein is disclosed. The housing features an open-bottomed, elongated, hollow body member which member has the conventional sidewalls and top wall, and a removable bottom wall member which cooperates with the open bottom of the elongated, hollow body member to close off the bottom thereof. Latching members, which are part of the bottom wall member, are lockably engageable with engaging members formed in the interior and at the bottom portion of the elongated, hollow body member. The latches lock the bottom wall member to the elongated, hollow body member by means of force exerted by torsion members connected to the latching members and carried by the bottom wall member.

Abstract: A plug or closure for closing and substantially sealing an aperture in a vehicle body panel. The plug comprises a plate portion and a resilient spring element carrying a plurality of resilient snap-engaging legs. The plate portion and the spring are separate and can be formed from different materials. The plate portion has an undersurface and one or more bosses in the undersurface defining a plurality of side walls. The spring has a body integral with the legs defining a plurality of edges and the spring is attached to the plate by forcing the body of the spring between or over the bosses or boss respectively so that the edges of the body of the spring frictionally engage the side walls of the boss or bosses. The plug may be provided with a ring of sealing material on the periphery of the undersurface of the plate.

Abstract: There is disclosed a device comprising a disc for disposal over the outer side of a flange, an annular ridge on the disc for substantially filling a ring groove in the outer side of the flange, a plurality of plugs on the disc for fitting closely within certain holes of a circle of bolt holes through the flange, and fasteners for holding the plugs in the bolt holes.

Abstract: A panel hole closure is composed of a rigid plate having an integral array of resilient fingers projecting from one surface of the plate inboard of the plate rim. A integral stiffener is provided for each finger which stiffens the finger against inward deflection toward the axis of the plate so that once the closure is seated in a panel aperture, it is difficult to dislodge. A plastic sealing ring encircling the plate rim may be melted and flow to provide a fluid-tight seal between the closure plate and panel.

Abstract: An improved pneumatic tube carrier is provided for transmitting papers, currency and other articles between various stations at locations within a building or building complex. The carrier hull is constructed of identical mating sections each formed in a generally semi-cylindrical shape from a single mold. The semi-cylindrical halves are hinged together along one longitudinal interface. A closure mechanism is provided at the opposite interface and includes a catch spring biased toward the hull. An adjustment mechanism limits the movement of the catch relative to the hull. Adjustment is possible to correct for catch disposition variations with prolonged use. Proper adjustment allows the hull to be self-latching upon closure. Adjustment is effectuated with the hull closed through a perforation near the hinged interface of hull sections, whereby an elongated tool is inserted into the perforation and is used to alter the adjusting mechanism.

Abstract: Fluid flow control systems for lawn sprinkling flow control systems which include rain override means and continuously available rain alarm signals during rainfall. Provisions are provided to prevent valve flutter during light or intermittent rainfall by means of conventional time delay relays. A novel, simple, and economic hermetically sealed outdoor casing is provided. Use of unique remote transformer plug and cord insures consumer product safety compliance against electrical shock hazzard.