Abstract: An arrangement for connecting two parts of a fluid system, preferably an aseptic system, by which the pressure gradient acts from the outside to the inside. The one system part carries an O-ring in a groove open to the other system part and open radially outwardly and the other system part is pressed against the O-ring by an axial holding device. To avoid dead space, in which bacteria could deposit, a space formed by the O-ring, the two system parts and the axial holding device is provided with a communication to the surroundings.

Abstract: A door lock includes a dead bolt slidably received in a cylinder and including a pair of extensions extended outward beyond the cylinder, a pair of plates fixed to the cylinder, an oblong hole formed in each of the plates, an actuating wheel slidably engaged in the oblong holes of the plates and including a pair of teeth for engagement with the protrusions of the extensions when the actuating wheel rotates. A resilient member is fixed to one of the plates for positioning the actuating wheel.

Abstract: A door latch having an adjustable backset position which allows it to be used in doors having either a 23/8" backset or a 23/4" backset. The latch includes a latch housing having two longitudinally spaced apart openings in communication with each other via a passageway. A cam is movable between the two openings through the passageway to adjust the backset. The cam cooperates with a retract slide which is engaged at its front end with the latch bolt to retract the latch bolt. The retract slide contains two sets of teeth at its back end, one set of teeth being engaged by the cam when it is in a first backset position and the second set of teeth being engaged by the cam when it is in a second backset position. The door latch also has a burglary deterrent feature comprising a dead bolt bar assembly which is in a retracted position when the door is closed and in an extended position when the door is open.

Abstract: The lock strike device is used with closable openings and is electrically connectable to an electrical monitoring circuit so that the presence or absence of a latch or deadbolt in the device can be automatically detected. The device includes a strike box having spaced sidewalls and a closed rear end. The first sidewall and adjacent portion of the rear end define an elongated cutaway portion through which an elongated blade trigger is spring biased into the strike space. The trigger is hinged at its front end to a box connected to the front of the sidewall. The rear end of the trigger is a head which urges a spring loaded lever arm of an electrical switch mounted on the exterior of the housing rear end into an open circuit position. A movable tab extends transversely into the space from the trigger. The tab senses the presence of a latch to provide a signal to an indicator.

Abstract: The locking device comprises a first hook cantilevered out from a rocking pin to support a catch member and bearing against a retractable locking member that opposes rocking movement of the first hook, and a second hook adjacent to the first hook and associated therewith by a link member so that when the first hook is closed, the second hook is kept in a position close to a position in which the second hook supports the catch member.

Abstract: The system is used for connecting sections of plastic tubing which form a sampling pipe for a well, in which a nose of one tube engages a sleeve on the neighboring tube. The system is an improvement to the tangential-key type of tube jointing system, where a flexible key passes through a key-hole in the sleeve, and around the circumference of the key-groove. The now system includes a rectangular key in place of the usual round key. Also shown is an O-ring seal, which resides in a seal-groove cut in the nose, outboard of the key-groove.

Abstract: A flap door in the floor of an aircraft cabin has a mechanism for locking and unlocking the flap door from either side. A bearing block with a bellcrank lever pivoted to the block is attached to the flap door that hinges upwardly into the passenger cabin. The bellcrank lever is one-armed and has a lateral roller that engages into a lateral guide groove. Further, a locking member is provided on the one-armed bellcrank lever, which catches behind a spring biased stop member on the bearing block in the closed position of the flap door. A handle recessed in the upwardly facing surface of the flap door is connected through a flexible pull member for withdrawing the stop member out of its locking position to open the door from above.

Abstract: A door locking system for attachment to an outwardly opening door which engages the door frame and which has a panic bar movable towards the door for disengaging the locking system. The locking device includes an outer sleeve fixedly mounted to the interior surface of the door and extending over one side of the door frame. An inner sleeve is provided within the outer sleeve which is pulled against a spring to a door frame engagement position, wherein inner sleeve extends over the other side of the door frame to prevent the door from being opened. A catch on the panic bar retains the inner sleeve in the engagement position, and movement of the panic bar towards the door causes the inner sleeve to retract into the outer sleeve, thereby allowing the door to be opened.

Abstract: A portable door latch is used on commode stall doors in bathrooms in which the stall door latches have been broken or undermaintained. The easy-to-use device includes a pair of disk-like members which are affixed on a nylon line for sandwiching the door against the jamb from inside the stall during use. When the user desires to exit the stall, the device is easily loosened and removed for storage in the pocket of the user.

Abstract: A lock comprising a stationary sleeve, a hollow cylindrical member, a tubular member and a means for rotating the hollow cylindrical member. The stationary sleeve defines a spirally extending slot that extends its entire length. The spirally extending slot is formed between a first edge and a second edge of the stationary sleeve. The hollow cylindrical member defines an axially extending slot that extends its entire length. The hollow cylindrical member is movably positioned within the stationary sleeve. The tubular member has a projecting tab fixed thereto and is slidably disposed within the hollow cylindrical member wherein the projecting tab is slidingly engaged simultaneously within the spirally and axially extending slots. The rotating means causes the hollow cylindrical member to rotate in a first direction or in a second direction. When the hollow cylindrical member is rotated in a first direction, the projecting tab physically contacts the first edge of the stationary sleeve.

Abstract: This vehicle door latch assembly incorporates a blocker bar which has a follower operatively mounted within a conical recess of an upstanding block so that when subjected to an unbalancing force of predetermined magnitude, the block will be tilted and the bar moved to a block position in which a transfer lever of the latch assembly is inhibited from turning. An associated intermittent lever is resultantly immobilized so that a connected detent lever cannot be moved from a holding position with respect to a spring biased locking bolt. With the locking bolt so held, it cannot be moved from a latching position with respect to a striker to thereby prevent door opening. When door opening is subsequently desired, an unblocking lever system can be actuated to cam the blocker bar to a release position allowing the transfer lever to be turned by a pull handle and a connected release rod to effect the spring biased movement of the locking bolt to an unlatching position with respect to the striker.

Abstract: A self-sealing pipe thread provides a connection for internally pressurized PVC pipes without the necessity of using sealant, O-rings, or gaskets. The thread holds pressure inside of the pipe and does not let gas or liquid to come in contact with any of the other threads. The sealing thread is provided by the tangential intersection between a flat annular sealing surface integrally formed on the head of the inside pipe thread and an annular line edge defining the inside edge of the ring step on the base of the outside pipe thread.

Abstract: A handle assembly, having a release handle mounted flush with a housing, is adapted for installation in a panel aperature from the outboard side of the panel. The housing is formed with a terminal flange provided with an upper omitted segment extending between a pair of handle pivot brackets. A retaining rib extends between the brackets and is offset inboard from the plane of the terminal flange backside. The handle is thus adapted to be mounted in the aperture in a rock-in manner with the terminal flange overlying the panel outer surface while the rib has an offset face abutting the panel inner surface. The housing has an inboard projecting stem supporting a one-piece retainer clip member enabling a single nut, upon being torqued down on the stem, to lock the handle assembly in the panel opening.

Abstract: A security lock for a double-hung sash window assembly which is to be mounted in a stile of a sash frame to limit movement of a lower sash frame relative to an upper sash frame. The lock includes a casing adapted to be mounted within a recess formed in the upper sash frames, and a faceplate on the casing having an opening therein communicating with an interior casing cavity. A tumbler pivots in the cavity and is spring biased by a leaf spring to normally project through the opening to engage the lower sash in a locking position. The leaf spring is mounted completely within the casing cavity normally to bias the tumbler into its extended, locking position, but permitting the tumbler to be completely retracted within the casing cavity so that the lower sash frame can be raised and moved past the tumbler. The tumbler and casing wall include interlocking protrusions to prevent over-rotation of the tumbler during engagement with the lower sash frame. The lock can be supplied as an assembled unit for installation.

Abstract: A locking mechanism for windows having upper and lower sashes slidably disposed in a window frame. The mechanism has three modes, that is a locked mode, an unlocked mode and an auxiliary mode. In the locked mode at least one sash clamp mounted on a transverse rail of one sash engages a cooperating receiving element mounted to the adjacent transverse rail of the other sash, whilst a spring-biased pawl projects into a guide groove in the window frame. In the unlocked mode the sash clamp disengages the receiving element to allow the sashes to be slid relative to each other. In the auxiliary mode the spring-biased pawl is withdrawn from the guide groove to permit the sash to be moved transversely for cleaning.

Abstract: A system for locking a door can: (1) lock the door in dead bolt fashion, (2) allow the door to open a limited distance, or (3) allow the door to open freely. The system has a door-mounted latch assembly that includes a base plate, an intermediate link pivoted to the base plate, and a mode selection and latching assembly that is pivoted to the intermediate link. The latch assembly also includes a high strength, "T"-shaped latch member, and camming means to slide the latch member back and forth as a control knob is rotated. A latch plate is mounted on the door frame in juxtaposition to the door-mounted latch assembly. The latch plate has a cylindrical portion with a vertical slot for receiving the "T"-shaped latch member. A cylindrical sleeve fits inside the cylindrical portion of the latch plate. Like the cylindrical portion of the latch plate, the sleeve has a vertical slot for receiving the latch member. The sleeve also has a horizontal slot running perpendicular to and intersecting with the vertical slot.

Abstract: A latch assembly includes a permanent magnet which is fixedly connected with a housing. A pair of pole pieces are connected with opposite poles of the permanent magnet. A coil extends around a portion one of the pole pieces. A keeper is mounted for pivotal movement between an initial position in which the keeper engages both of the pole pieces and a release position in which the keeper is spaced from the pole pieces. The coil is energizable to oppose the permanent magnet and release the keeper for pivotal movement from the initial position to the release position. A retainer surface is connected with the keeper and retains a striker and door against movement relative to the housing when the latch assembly is in an engaged condition. The retainer surface and striker cooperate to transmit force along a path which extends through an axis about which the keeper pivots. The retainer surface has an arcuate surface area with a center of curvature disposed on the axis about which the keeper pivots.

Abstract: A fluid swivel, of the type that carries oil, natural gas, or other fluid between an undersea well or pipeline and a weathervaning ship, wherein the seal arrangement that prevents leakage of fluid is constructed to increase the seal lifetime and reduce the cost of the fluid swivel. The seal arrangement includes a recess (44, FIG. 2) in a first of the swivel parts and a seal assembly (46) therein which includes a pressure seal (50) and a backup ring (56). The backup ring has a dynamic side (64) lying adjacent to the portion (54) of the second swivel part that is sealed against, and has an opposite distal edge portion (72). The dynamic side of the backup ring has a tapered downstream portion (80) that is tapered at an angle A of no more than 30.degree. to the axis of rotation (16) of the fluid swivel, with the downstream edge (82) of the tapered portion lying on a downstream wall (86) of the first swivel part rather than overhanging it.

Abstract: A tamperproof security seal for a container which includes an outer cover member having a closed end wall with a plurality of through-holes therein. A locking member is adapted to be accommodated in the outer cover member with the locking member being formed of a sheet steel and having a plurality of rows of openings extending across a width of the locking member. The openings in each row are spaced from each other in a longitudinal direction of the locking member and are in axial alignment with each other and to the respective rows are in axial alignment with the respective openings of the end wall of the cover member. A drawstring is threaded through the openings in the locking member and the outer cover member so as to form a loop portion adapted to be placed over an opening of the container.

Abstract: A handle assembly, comprising a release handle mounted within a recess of the handle housing, is adapted for installation in a vehicle door panel aperture from the exterior thereof. The housing is formed with a terminal flange provided with an upper omitted segment extending longitudinally between a pair of upright handle support brackets. An elongated retaining rib is formed between the brackets having an outboard face offset a predetermined dimension inboard from the plane of the terminal flange backside. The housing is mounted in the panel aperture in a rocked-in manner with its terminal flange overlying the aperture recessed flanged border while the retaining rib face locates to the inboard surface of the flanged border. The housing central body has an inboard projecting stem adapted to support a clip whereby the clip, when fixed to the stem by a fastener, locks the handle assembly in the panel aperture.