Abstract: A hand operated piston displacement-type pump having a one-piece valve body retaining a removable cylinder and discharge tube, for dispensing prescribed portions of complex fluids, such as food products or liquids with suspended solids, at a desired point outside of a storage container. Valve ball control of the flow of the product is obtained with the combination of the precision channels in the valve body and in the bottom of the cylinder and discharge tube. The valve body includes structure necessary for seal and connection to allow the cylinder and discharge tube to be removed, without tools, for cleaning.

Abstract: This invention relates to a portable air support device having a plurality of air inflatable cells, arranged within a conveniently dissembled air support bag. The portable device comprises a novel air distribution manifold, control console and air distribution valve assembly to inflate a novel air flow quilt which provides an upward flow of air to a patient reclining thereon, to provide comfort and promote patient healing.

Abstract: A quick connect fitting for connecting a plastic or metallic tube (42) in a fluid circuit includes a fitting body (20) having an interior cavity (22) opening to the exterior of the body (20) via a generally circular port (36). A peripheral step (48) is located in the port (36) and an O-ring (50) is abutted against the step (48). A washer (52) is located in the port (36) and has a central opening (54) slightly larger than the outer dimension of the plastic or metallic tube (42). A peripheral flange (56) is disposed on the washer is directed away from the O-ring (50). A retaining ring (62) is disposed in the port (36) and nominally abuts the flange (56). The retaining ring (62) has a central opening (64) substantially greater than the outer dimension with a plurality of resilient, radially inwardly directed, angularly spaced fingers (66).

Abstract: A male/female quick-connect system is provided which is adapted to sealingly couple to the opening of a container of liquid product. The female component of the system is adapted to couple to any standard 3/4" plumbing fitment and/or 1/4" ID standpipe and is self-venting so that any stock container can be used without modification. The male component which sealingly couples to the female component is provided with a barbed tip adapted to receive a variety of feed line sizes. A one-way elastomeric valve is disposed in the male member which only allows product to flow therethrough when the male component is coupled to a source of vacuum thereby preventing product from flowing back into the container.

Abstract: A device for separably coupling one end portion of a rigid or elastically deformable hose to a nipple has a first tubular element which is non-rotatably and sealingly secured to the one end portion of the hose, and a second tubular element which is rotatable on the first element and carries first detent members separably engageable with one or more second detent members on the nipple. Engagement of the first detent members with and/or their disengagement from the second detent member or members on the nipple merely necessitates rotation of the second tubular element relative to the nipple and relative to the first tubular element, i.e., the hose need not be twisted and/or otherwise deformed in order to couple it to, or to disengage it from, the nipple. A sealing ring is provided to automatically engage the first tubular element and the nipple when the first detent members are properly connected to the second detent member or members.

Abstract: A fog producing firefighting tool has a nozzle which includes a plurality of apertures oriented so that when pressurized fluid flows through each aperture, the liquid impacts at an angle of 90 degrees with another stream of liquid to atomize the liquid and create a fog. The firefighting tool is of modular construction which includes a first member, one or more intermediate members, and an end member wherein the members are connected to each other by means of quick coupler devices which can be readily locked into coupled relationship and will not interfere with the usage of the tool when it is forced into or removed from a hole in a structure.

Abstract: A system for collecting sap from maple trees in which is provided a family of interchangeable connectors or fittings providing quick connect/disconnect features, and a spout member providing for more straight line flow of sap through such a member. An assembly is provided of a male and female member which allows quick connection of branch lines together, or a branch line to the main line conduit. A drop line assembly is provided which allows for better tapping of sap producing trees to maintain healthy trees. A cap is provided constituting one member of the quick connect/disconnect assembly whereby any part of the sap collection system can be isolated from the rest or for providing a closed system for cleaning or sealed from the environment. Adaptors are provided which incorporate the features of the quick connect/disconnect assembly making it possible to convert old sap collecting systems to one using the connectors and fixtures having the quick connect/disconnect features.

Abstract: A protector shield is provided for a needle to protect from injury to the hand and touch contamination of the needle. The protector shield comprises an arcuate wall, longitudinally positionable about the pointed end of a tubular needle in spaced relation to it. The arcuate wall defines an open side, and an arcuate arm extends from the arcuate wall across a portion of the open side. The arm extends generally circumferentially about the needle so that the protector shield may be used to lock the needle into engagement with a Y-type injection site.

Abstract: A device for attaching a water jet device to a concentrate container or a reservoir by means of a clamping device or a foot, comprising a connecting piece, in which the foot is arranged to be fixed and put into sealing abutment with the insert piece in one movement, for which purpose the connecting piece is provided externally with threaded parts designed to cooperate through a bayonet catch with a complementarily designed part of the foot. The container, which is designed as a flexible bag, may be provided with a base plate at the position of the connecting piece, said connecting piece being designed as an insert piece, so as to ensure that the outlet opening of the insert piece remains open.

Abstract: A connector for detachably securing an end of a tube, such as a catheter, to a fluid port of a fluid transfer assembly, such as an implantable device, the connector having a body part which defines a coupler for coupling to a coupler receiver of the transfer assembly. The connector includes a sleeve which fits within the body part and defines an aperture for compressively receiving an end of the tube which has been fitted over a fluid port of the transfer assembly. The body part is rotatable about the sleeve to facilitate coupling of the coupler and coupler receiver. In one embodiment, the connector further includes bayonet pins for twist locking the coupler in the coupling receiver. A tie down may be provided to prohibit the coupler from being inadvertently detached from the coupling receiver. A tactile indicator may be included to indicate correct coupling of the coupler and the coupler receiver. The sleeve generates a compressive force to secure the tube to the fluid port.

Abstract: A coupling has first and second tube portions joined by a control collar that is rotatable to axially position the first and second tube portions in an installed position, a locked position and in a blow-off position. In the locked position, the tube portions are axially inserted and rotated and locked together by a biasing spring against separation and an O-ring member on one tube portion seals against the other tube portion to seal the tube portions together to prevent fluid leakage therefrom when in their locked position. The other tube portion includes a relief port which is opened for safety blow-off of pressure when the one tube portion is positioned in the blow-off position.

Abstract: A vapor vent valve for automotive fuel tanks is provided with bayonet-insertion, turn-to-lock mounting structure mating with a recessed opening in the top wall of a vehicle fuel tank. An O-ring mounted on the valve body provides a fluid-tight radial compression seal between the valve body and the fuel tank wall to prevent leakage of fuel and fuel vapor therebetween. An annular plastic spring washer is disposed between a top flange of the valve and the top wall of the tank to create an axial tension between valve and tank and also to act as an external weather seal. The spring has an integral means to prevent over-center flexing and shape inversion.

Abstract: A device is suggested for the interchangeable connection of a projecting arm section (1) to an arm (2) of an internal treatment station for can bodies. The device comprises a locking member (8), by means of which the arm section (1), such as a spray arm, for example, is detachably mounted to the arm (2).

Abstract: A multiple barrel device for separate storage of viscous materials and for dispensing and intermixing same through a common static mixing element when pressure is applied. The device includes a multiple barrel syringe and a removable nozzle which is coupled to the syringe to form an interlock and a simultaneous pressure seal. The head of the syringe has a plurality of lugs which form bayonet grooves for engaging a complementary number of tong-like projections extending from the head of the nozzle. The head of the nozzle contains an annular bead which simultaneouly seals the interface at the intercoupling between the head of the syringe and the head of the nozzle.

Abstract: A high pressure vapor vent valve for automotive fuel tanks is provided with bayonet-insertion, turn-to-lock locking structure mating with an opening in the fuel tank. An O-ring mounted on the valve body provides a fluid-tight radial compression seal between the valve body and the fuel tank wall to prevent leakage of fuel and fuel vapor therebetween. The O-ring radial compression seal is effected independently of the locking structure.

Abstract: A system for mating fluid transfer couplings is constructed having a male connector 32 which is provided with a pair of opposed rollers 54 mounted to an exterior region thereof. A male half 30 of a fluid transfer coupling is rotatably supported in an opening 36 in an end 38 of connector 32 and is equipped with an outwardly extending forward portion 20. Forward portion 20 locks into an engagement and locking region 16 of a female half 60 of the fluid transfer coupling, with female half 60 being rotatably supported in a receptacle 62. Receptacle 62 has an opening 70 aligned with locking region 16, with this opening having a pair of concentric, annularly disposed ramps 74 extending around an interior portion of opening 70. These ramps are inclined toward interior 78 of receptacle 62 and are provided with slots 76 through which rollers 54 of connector 32 pass.

Abstract: The object of the present invention is to provide a rigid axial retainer for use in bayonet joints. The rigid axial retainer is particularly useful for connecting lengths of tube to form handles for brooms, cleaning equipment and the like. The retainer has a female portion with at least one transverse protrusion and a male portion with at least one substantially "L-shaped" groove. The groove provided on the male portion has a first part which axially aligns with the transverse protrusion within the female portion when the male portion and the female portion are moved longitudinally with respect to each other. The first part of the groove debouches into a transverse second part of decreasing depth having an inclination identical to that of said transversally protruding sement.

Abstract: A heat exchanger, particularly a radiator for the heating of buildings is formed with a modular unit comprising a tubular finned element of extruded aluminum in which upper and lower headers of die-cast aluminum are engaged by an interference fit and a sealing O-ring gasket. The headers being connected through couplers by bayonet type coupling. The unit being completed passivated and/or anodized against corrosion.

Abstract: A spring collar coupling (10) is provided for joining opposing fluid conduits. Basically, the spring collar coupling comprises a spring collar (20) in cooperative engagement with a first and second flange member (40, 60) functionally joined by the application of a coaxial force, the insertion of a bayonet locking ring (70) and release of the pressure force to effect a coupling of the aforesaid components.

Abstract: A pair of slot-and-stud connected coupler units for use between water conduits such as a garden hose and faucet. An O-ring seal prevents escape of water between the units and also frictionally resists relative movement between them.

Abstract: A device is disclosed for coupling a drainpipe to a recreational vehicle discharge pipe fitting of the type having a terminal end portion with circular periphery and a plurality of locking pins extending outward radially from the periphery. The device employs a tubular member having a proximal end and a distal end. A drainpipe end portion of the tubular member terminating at the distal end has a complementary shape and size adapted to engage threadably an end of a corrugated drainpipe, while a fitting end portion of the tubular member terminating at the proximal end has a complementary shape and size adapted to engage telescopically a terminal end portion of the discharge pipe fitting.

Abstract: An adapter for coupling a corrugated drainpipe to recreational vehicle discharge pipe employs a tubular member having a discharge pipe end portion of a shape and size adapted to be placed over an outlet end of the discharge pipe, and a drainpipe end portion having a shape and size adapted to engage threadably an end of a corrugated drainpipe. A helically-shaped thread along the drainpipe end portion are sized and shaped complementary to conform to the corrugations of the corrugated drainpipe enables threaded engagement of the corrugated drainpipe.

Abstract: The bayonet coupling is provided with a connecting ring having radial pins for engaging in grooves in a hollow member to provide a loose connection. In addition, a screw-threaded ring is threaded into the connecting ring to move against a shoulder on one hollow member in order to compress a resilient seal ring between the hollow members and thus provide a strong seal-tight connection.

Abstract: A device for connecting together tubes or pipes is disclosed, which comprises a cylindrical male coupler provided on one end of a first tube or pipe and having an engagement projection formed on the outer periphery, and a female coupler provided on one end of a second tube or pipe and having a helical engagement notch for receiving the engagement projection. The two couplers can be tightly coupled together by fitting the male coupler to the female coupler such that the engagement projection is received in the helical engagement notch and then turning the couplers relative to each other.

Abstract: It is suggested in relation to a coupler for hose lines of high-pressure cleaning equipment and high-pressure spraying equipment comprising a nipple and a connecting piece to be coupled to the latter that the nipple be captured by a sleeve containing catch projections with recesses extending into its interior, that a compression spring be positioned between the inner wall of the sleeve and the nipple, that the connecting piece have on its outer wall outwardly projecting catches with locking lugs which slip into the recesses in the catch projections, and that the compression spring push the locking lugs into the recesses in the catch projections when the connecting piece is inserted into the sleeve.

Abstract: A valved fitting for a sewer or drain line access is described which permits easy sewer line entry. The fitting includes a large-straight-bore valve body and a housing which is adapted for connection to a sewer line. Embodiments include removable and permanently attached fittings. A further feature is a flexible hose which attaches to the housing and can be used to prevent leakage of sewer liquids when the sewer line is to be cleaned.

Abstract: A connector for coupling a hose to a faucet or the like includes two molded plastic members which are coupled together by a bayonet-type connection. One member carries a resilient seal which has an annular lip inclined radially inwardly and axially toward an axially facing annular sealing surface on the other member. When the members are coupled, the lip flattens against the sealing surface to form a seal between the members and, in this condition of the parts, the resiliency of the lip also produces a force which keeps the bayonet-type connection in the locked position. When the members are being coupled while water is running through the member with the seal, an annular groove in the sealing surface causes water to backwash and clean the sealing side of the lip as well as the sealing surface itself.

Abstract: A three component coupling assembly consisting essentially of plastic male and female coupling members and an annular seal. The female member has a male fitting engaging end portion formed with interior threads for cooperatively threadedly engaging a threaded male hose fitting. The remaining female coupling portion has a generally cylindrical interior periphery of a smaller diameter size defining at a position adjacent the inner end of the interior threads an annular shoulder. The interior periphery has formed therein a plurality of annularly spaced grooves extending from the outer end thereof through the annular shoulder and a corresponding plurality of correspondingly annularly spaced notches extending from the annular shoulder toward the outer end. The seal has an outer annular portion seaingly engaging an uninterrupted outer sealing surface of the shoulder and an inner annular portion extending over the notches and grooves formed in the shoulder.

Abstract: A keg tapping apparatus includes a keg unit secured within the neck of a keg by a retainer and a tavern unit coupled to the keg unit by the retainer. An operating handle opens valves associated with the keg unit to establish fluid communication between the keg and fluid inlet and outlet fittings on the tavern unit. The retainer has a body which includes a generally cylindrical bore and notches which communicate with the bore. Complementary inserts received within the notches are integrally attached to the body and define coupling lugs which project into the bore for coupling connection with the tavern unit. The inserts are made from a harder material than the body.

Abstract: A tank assembly utilized in a heat exchanger such as a radiator and the method of connecting a cylindrical spout such as a filler tube in an opening in the tank wall. An opening is formed in the tank wall with a skirt extending inwardly from the tank wall. A plurality of cam/lock sections are formed at the lower extremity of the skirt with each cam/lock section having a cam surface leading from a receiving end to a locking recess, the opposite wall of which is extended to define a stop. A plurality of radial slots are formed in the tank wall to extend radially of the skirt adjacent the receiving ends of the cam surfaces. A spout is formed having a radially extending shoulder and a lower portion with a plurality of radially extending tabs. An annular seal recess is disposed in the tank wall for receiving a seal.

Abstract: Special J-slot connectors have been devised for connecting concentric riser pipes and casing from a structure at the surface of a body of water to corresponding concentric casings set in the sea floor. This can be called a "tieback tool" for sealingly securing a first tubular member suspended from a vessel floating on a body of water to a casing hung in the wellbore in the bottom of the body of water. Special multiple axially aligned J-slot means are also provided together with means to assure proper "makeup" of the J-slots. Means are also provided for proper alignment of circumferentially spaced J-slot connectors. Special self-emergizing seals are also disclosed.

Abstract: A tubing string (86) is connected at its upper end to a hanger (42) and has its lower end anchored within an outer casing. The hanger and tubing string are lifted from a position below the wellhead assembly to tension the tubing string a desired amount. The hanger has a plurality of guide pins (90) extending from and spaced about the outer periphery of the hanger. Upon lifting of the hanger and suspended tubing string, the guide pins enter inverted J-slots (62) in the hanger bowl (30) which receive and guide the pins to a seated position on the bowl.

Abstract: A tubular female receptacle receives the projecting end of a cylindrical male plug shell having a radial shoulder intermediate of its ends, which bears against the end face of the receptacle. The plug shell carries a tubular coupling ring with cam grooves in its inner surface to act against bayonet pins mounted to the periphery of the receptacle. When the coupling ring is rotated onto the receptacle the cam grooves and bayonet pins cause the coupling ring to advance axially over the receptacle, and because the coupling ring is carried by the plug shell, the coupling ring causes the plug shell to advance into the receptacle. The cam grooves must necessarily end in detents to prevent the bayonet pins from backing down the ramps defined by the grooves.

Abstract: A built-in suction cleaner has a waste bucket of translucent material to permit its contents to be seen. The bucket has handles and is secured to a body section by co-operating projections and recesses, facilitating removal and replacement of the bucket. A filter in the body section is secured by a spring band in the filter edge being received within a groove in the body section wall. The body section supports a suction unit, which is resiliently secured in place only by a cover being fixed to the body section.

Abstract: The present invention relates to a tube joint and the method of assembling the joints wherein a male member that is dimensioned to be telescoped in a cup portion of a female tube member is provided with projecting nibs that project radially outwardly from the outer surface of the male member. The telescoping action of the members together with a rotational movement of the male member causes the nibs to form a locking groove in the inner surface of the female member that extends longitudinally circumferentially and effectively prevents axial movement of the members relative to each other prior to the soldering operation.