Abstract: A tank closure, especially for a tank of a motor vehicle, with a bayonet cap having a pair of tension clamps. The tension clamps, during a rotation of the cap, are axially displaceable through the bayonet-type thread at the tank neck and are urged against the thread by a helical compression spring. The spring rests on a bracket of a closing pipe guided in a housing of the cap and joined thereto so that the spring urges the closing pipe, especially a flange associated therewith and covered with a sealing ring of rubber or the like, elastically resilient material onto an annular sealing surface of the tank neck. A self-lubricating synthetic resin spacer sleeve, that is, a sleeve which readily slides on metal, is inserted between the flange of the closing pipe and the pair of tension clamps.

Abstract: A hatch for attachment to a wall. The hatch includes a base and a cover and has interlocking pegs and grooves for securing the cover to the base.

Abstract: An underground vault formed of two housing sections, each section having an open end bordered by an outwardly projecting annular flange, the flanges being of like diameter to permit their mutual abutment when the two sections are placed together to form an enclosure, each flange having a plurality of circumferentially located, equally spaced hooks and slot configurations to lock the sections together when the sections are positioned so that alternating hooks and slots of one section are aligned with slots and hooks of the other section is disclosed.

Abstract: A sealing cap has an external cover section of external diameter greater than a circular sealing face about an opening. An internal cover projects into the opening, and a tightener is provided. A diametral handle is molded on the external cover section and has a U-shaped stirrup with two legs connecting it to the external cover section, and a wall extending along the center of the stirrup and connecting it to the external cover section. The improvement of the invention is that each cover section is made as a one-piece molding, and the legs of the stirrup are spaced by not less than the external diameter of the cover section sealing face, and the length of the wall, longitudinally of the stirrup, is less than the internal diameter of the cover sealing face.

Abstract: In a sealing cap for fuel tank pipes of motor vehicles with an outer cap (10) and an inner cover portion (12), the outer cap (10) has, at its inner side, a rib (36), made of synthetic material, which bears at least one radial lug (38) at its open end to serve as connection with the inner cover portion (12). In order to obtain a secure, torsion-proof connection between the outer cap (10) and the inner cover portion (12) during normal use and in order to facilitate a snapping off of the outer cap (10) in the case of motor vehicle accidents, the strength of the lug (38) is calculated to be low, and the torsion-proof connection between the outer cap (10) and the inner cover portion (12) is achieved by a separate positive-locking coupling (56, 58).

Abstract: A unitary plastic cap having an inner and outer sealing flange surrounding means for compressively engaging the cap with an apertured member. Upon compression, the inner and outer flanges of the cap cooperate with a raised annular ridge disposed radially outward of the aperture on the member to provide a double sealing engagement of the cap with the member.

Abstract: A pressure-tight cap assembly providing a leak-proof seal against positive nternal tank pressure. Tank pressure may be vented prior to unlocking and removing the cap. The cap assembly incorporates an external adaptor with ears and slots in its outside circumference to be permanently threaded onto the tank outlet pipe and a quick-disconnect cap containing a spring. The spring fits inside the adaptor and the cap slides over the adaptor and locks onto the adaptor by means of cylindrical pins on its inside diameter received by the slots of the adaptor. A rubber O-ring fits between the outer diameter of the adaptor and the inner diameter of the cap and cooperates with the spring to provide both a leak-proof seal and a means for venting tank pressure.

Abstract: A safety device for an electrode-type steam vaporizer having an electrode assembly enclosed in a protective housing allows access to the electrodes for cleaning or adjustment only when a key, preferably the electric plug for the vaporizer, is inserted through an opening in the protective housing to release an interlock mechanism normally precluding removal of the protective housing from the electrode assembly. When the protective housing is removed, the key is automatically locked in the opening in the protective housing by a spring-biased lock pin and cannot be removed until the electrode assembly is again repositioned in the housing with the electrode assembly and housing properly assembled relative to each other. The safety device can be used in other electrical appliances, such as a toaster, that have electrical elements enclosed in a protective housing.

Abstract: A bowl guard for mounting, containing and protecting a plastic or glass bowl of a compressed air system device. The bowl guard holds, protects and retains an opaque, transparent or translucent bowl such as a bowl which encloses a filter or lubricator device. The bowl guard is secured to a header of the device and locks the bowl in a sealed relationship with the header. The guard may have apertures so that the contents of the bowl may be observed. A drain through the bowl and guard can be provided when appropriate. A locking pin on the bowl guard insures that the entire assembly is held in alignment. When the bowl guard is latched into place and the system is under pressure the guard may not easily be withdrawn.

Abstract: A drinking container is provided with a removable cap engageable with a cup in sealing arrangement. A drinking opening is provided in the cap and is normally sealed shut by a spring biased plug. A trigger on the exterior of the cap, when actuated, withdraws the plug from the drinking opening to allow the user to imbibe a beverage.

Abstract: A container comprising a metal container body having an access aperture with a curled rim and a cap for closing the access aperture with the latter carrying a plurality of radially projecting projections and the curled rim of the container body having recesses therein, portions of the curled rim being radially flattened to provide the recesses and leave adjacent thereto rim portions under which the projections of the cap can engage, the recesses being arranged to permit passage of the cap projections therethrough upon bringing the cap axially up to the access aperture, and the cap projections being arranged to engage under the rim portions adjacent the recesses when the cap is then turned, so as to secure the cap on the container body.

Abstract: A meter box and a uniquely designed cover molded out of a substantially rigid plastic material is disclosed. The meter box comprises an open upper top with an upwardly extending rim member. On the inside surface of the meter box are means for supporting a cover forming a ledge member. The cover is arranged and configured to rest on the ledge confronting the rim of the box so as to substantially close the open top of the box. Disposed on the exterior of the meter box are a plurality of anchor tabs. A horizontal member is disposed between two anchor tabs adjacent the top of the meter box which enables the box to be secured in concrete and the like.The cover may be a substantially round member or may comprise first and second sections and means for rotatably joining the first and second sections together. The first section having outwardly extending protrusions which engage slots on the meter box so as to render the first section substantially immovable therein.

Abstract: A plug and its attaching hole for use in removably securing an accessory to a pressure container. This plug includes a head portion and a reduced diameter or shank portion continuous with the undersurface of the former. Build-up portions are formed on the outer peripheral surface of the shank portion, while cut-away portions are provided in the peripheral edge of the plug-attaching hole defined in the wall of the pressure container. Upon insertion of the shank portion of the plug into the plug-attaching hole, the build-up portions formed on the outer peripheral surface of the shank portion of the plug are mated with the cut-away portions, and then the plug is turned through a given angle so that the build-up portions may engage the inner peripheral edge surface of the plug-attaching hole provided in the wall of the pressure container.

Abstract: A medication container is disclosed having structure which is both resistant to interaction with stored medicine and protects the medicine from deterioration. The container maintains the stored medicine available for almost instant self-administration by thw user. Plating is preferably provided to inhibit interaction of the container and the medicine. Alternately, the container is made from a material which is impervious and inert to the stored medicine. The container is configured to accommodate the desired dosage of medication. The preferred container has efficient double sealing to further protect the medicine. The container preferably consists of two members which are selectively secured together by novel threads which require only a small amount of relative rotation between the members for connection and disconnection. The threads are plated and configured to achieve a smooth but tight fit and to avoid bonding or sticking between the threads when the container has been closed.

Abstract: Each top cover of carrying and shipping containers designed for nested stacking has a first locking means for securing the cover to the container bottom. A second locking means for connecting each locked container to a similar underlying container positioned in stacked relation is located within the structure of a male component of the first locking means which is mounted in the container cover. Structures of both locking means are provided for rotary and linear sliding modes of operation. The second locking means include cam collars having upper and lower chambers, the latter housing followers which, when actuated by a finger manipulatable means accessible from the top of the containers, project and lock into the upper chambers of similar cam collars of underlying containers.

Abstract: A cup shaped cover and valve assembly is provided for a drinking receptacle to close off the open top of the receptacle to prevent spilling or splashing of either hot or cold beverages in the receptacle. The cover includes a plate surrounded by a rim, the plate being slightly tilted in the rim so that its top surface slopes between diametrically opposite points on the rim. An elongated opening is provided in the plate adjacent to its lowest level portion and a valve head in turn positioned beneath the plate to close the opening. The valve head is biased against the opening by resilient integral supporting arms secured to the bottom of the plate.

Abstract: A meter box and a uniquely designed cover molded out of a substantially rigid plastic material is disclosed. The meter box comprises an open upper top with an upwardly extending rim member. On the inside surface of the meter box are means for supporting a cover forming a ledge member. The cover is arranged and configured to rest on the ledge confronting the rim of the box so as to substantially close the open top of the box. Disposed on the exterior of the meter box are a plurality of anchor tabs. A horizontal member is disposed between two anchor tabs adjacent the top of the meter box which enables the box to be secured in concrete and the like.The cover may be a substantially round member or may comprise first and second sections and means for rotatably joining the first and second sections together. The first section having outwardly extending protrusions which engage slots on the meter box so as to render the first section substantially immovable therein.

Abstract: An electric load research device includes an enclosure having a pulse data recorder and an adjustable meter mounting arrangement for attaching an impulse sending electric meter. The meter is attachable in different rotated positions within the research device enclosure for connecting the device at a utility customer's meter socket in different orientations to avoid adjacent obstructions.

Abstract: A camping stove having a housing for receiving an expendable gas container. The gas container is punctuated by a puncturing means at the upper inner end of the housing to connect the container with valve supporting the puncturing means. The valve means and the puncturing means are rotationally and stationarily mounted in the housing. The container is enclosed in the housing by a lid which supports a screw employed to press the container against the puncturing means without rotating the gas container.

Abstract: Apparatus for the generation of carbon dioxide by the reaction of an edible acid and a carbon dioxide-releasing substance in aqueous solution. The gas is generated in a generator chamber and is injected into water contained in an absorber tank to carbonate the water and also to provide pressure for expulsion of the carbonated water from the apparatus.

Abstract: A pressure cooker has a pan with a circumferential rim and a lid with a closure part rotatable concentrically thereto for locking the lid on the pan part in a pressure tight manner. The lid and closure part have peripheral flanges each engaging under the edge of the pan part over a maximum of half the length thereof. The flanges are movable into one another and are arranged so that the pan rim can be released from the flanges at least over half its circumference.

Abstract: A one-piece plastic closure device for use in a filler hole, i.e. an oil filler cap or crankcase vent means, which seals the hole from the outside and can be applied with a fractional turn of the closure. The closure is adapted for use in a panel with an aperture having communicating lateral slots which telescopically accepts spring controlled retainer pads extending laterally from the closure body and that are moved to underlying relationship with the panel by rotation of the closure; the spring means acting on said retainer pads insuring continued sealing engagement of the closure with the panel.

Abstract: A container closure having a skirt portion provided with an inwardly rolled, continuous, reinforcing bead on the lower edge thereof and engageable with locking projections or threads provided on the container neck portion.

Abstract: The apparatus includes in one form an attachment for a conventional spray paint container comprised of an arcuately shaped receptacle having inner and outer walls and a bottom wall defining an arcuate chamber. An elastic band is secured to opposite ends of the receptacle to releasably secure the latter about the neck of the spray paint container with the inner wall of the receptacle in close fitting relation about the neck. The open upper end of the receptacle lies at an elevation flush with or below the upper edge of the container for collecting paint leaked between the container and its lid and/or from the vent hole in the lid. In one form, the receptacle extends about the neck for less than 180.degree. and slots are provided in the elastic band for receiving the diametrically opposed outwardly projecting pins carried by the neck of the conventional paint container. In another form, the receptacle extends circumferentially a distance greater than 180.degree.