Abstract: The invention relates to a rotary assembly (1) comprising two spaced-apart support members (5a, 5b). A shaft (7) is connected with respective ends to each support member (5a, 5b) via an engagement part (12), and a rotary element (4) having a through hole extending around the shaft so as to be supported on said shaft between support members (5a, 5b). The shaft comprises a flexible wire-like elongate body (6) that is connected to the support members (5a, 5b) under axial tension. The shaft is connected to the support members (5a,5b) in a nonrotating manner, the through hole being of larger diameter than a shaft diameter so that the rotary element (4) is rotatably supported on said shaft (7).

Abstract: A pressure relief port for relieving the pressure within an enclosure having a wall with first and second sides and a first opening therethrough. The pressure relief port includes a tube having a conduit therethrough sized to fit in the first opening in the wall to extend essentially intermediate the first and second sides of the wall. First and second end caps having respective openings therein are sized to fit on the first and second walls respectively, about the first opening. The tube extends into the first and second end caps. A flexible diaphragm extends substantially across the conduit in the tube for regulating air flow and is displaceable between a first position where the diaphragm substantially closes off the conduit to air flow and a second position where the diaphragm is displaced by air pressure to permit air to flow through the conduit to equalize pressure on opposite sides of the wall.

Abstract: A latch suitable for use on the door of a walk-in refrigerator can be opened from the exterior thereof and in addition from the inside of the cabinet as well as by means of an electrical signal. The latch is provided with a vapor barrier to prevent flow of water vapor along that part of the mechanism by means of which the latch is operable from the interior of the cabinet, flow of water vapor presenting the danger of frost-formation in said mechanism which could adversely affect the operation thereof. Optionally, the latch is provided with a switch which is closed on operation of the latch to activate an external device such as a vent port or an alarm signal.

Abstract: A water glass filler allows single-handed operation for either flow-on-demand or continuous flow operation. Manual actuation of a control button, using the same hand which concurrently holds the glass against a swing arm, changes on-demand flow into continuous flow. Continuous flow terminates on further actuation and release of the swing arm. Actuation of the control button drives a spring-loaded latch into a socket in the swing arm, and the water valve spring maintains this condition until the control button latch is released.

Abstract: A shielded vent port for equilization of the pressure on opposed faces of a wall comprises a frame for fitting into an opening in said wall, a conduit through said frame, a sloping plate in said conduit, said plate being sealed against the walls of said conduit and having a large aperture therethrough, and a riser lying against the upper face of said sloping plate, said riser preventing flow of air in a downward direction through said plate and being movable away from said plate to permit flow therethrough in an upward direction. To provide for flow of air through said wall in either direction, the frame may have two conduits therethrough with a sloping plate and a fitted riser in each, the planes of said plates sloping in opposed directions. The shield may be lifted away from the plate to permit flow of air therethrough by an excess of pressure below the plate or by a solenoid in response to an external signal.

Abstract: An edgemounted latch mechanism that is tamper-resistant is provided. An internal locking mechanism is adapted to lock simultaneously both a locking arm and a catch assembly. The catch assembly is constantly forced against a keeper member to assure a constant seal of the door to its gasket or door frame. The mechanism has provision for insertion of an external lock such as a padlock in order to secure the handle with respect to the latch housing and with respect to the locking arm.

Abstract: A latch suitable for use on the door of a walk-in refrigerator can be opened from the exterior thereof and in addition from the inside of the cabinet as well as by means of an electrical signal. The latch is provided with a vapor barrier to prevent flow of water vapor along that part of the mechanism by means of which the latch is operable from the interior of the cabinet, flow of water vapor presenting the danger of frost-formation in said mechanism which could adversely affect the operation thereof. Optionally, the latch is provided with a switch which is closed on operation of the latch to activate an external device such as a vent port or an alarm signal.

Abstract: A self-closing hinge with a concealed switch is provided. The hinge has a cam follower formed on a movable member which rides on a cam formed in a stationary member, causing the movable member to move up and down with respect to the stationary member, as the movable member is pivoted about on axis defined by the stationary member. An actuator button mounted in the stationary member abuts a projection on the movable member at a predetermined position of the movable member for actuating a switch assembly concealed within the stationary member. The switch assembly may be used to activate a variety of circuits.

Abstract: A ball bearing roller assembly for extensible draw tracks and the like includes a plastic roller having a bore with an annular race terminating at its rear end in a resilient releasable retainer lip and at proximate its forward end in a peripheral inside flange. A steel core coaxially registers with the roller and has a cylindrical outer race terminating at its forward end in a converging arcuate face and a coaxial stub projects rearwardly from the core. Bearing balls are entrapped between the races are impeded from forward movement and releasably restricted from rear movement by the resilient lip. A mounting plate includes a centrally apertured raised circular section abutting the core rear face with the stub engaging the aperture and being upset to lock the assembly and lock the balls against rearward release.

Abstract: A drawer slide assembly includes a channel shaped track member having formed in the side webs proximate one end of the track member a pair of longitudinal slots adjacent to the track member cross web. A mounting plate has a forwardly offset inner section projecting through a slot and superimposed on the cross web a rearwardly offset outer section coplanar with the cross web. The mounting plate is secured to the cross web by grommets integrally formed with the mounting plate inner section. A ball bearing roller is mounted on the outer section front face and a latch member is pivoted to the outer section outer border. In fabrication the roller and latch member are first assembled on the mounting plate which is then secured to the cross web. Two pairs of interfitting drawer slides are cooperatively associated with a slidable drawer and side supports.

Abstract: A drawer slide structure includes a pair of slide mechanisms supporting the drawer in a cabinet, each mechanism including a pair of vertically spaced telescoping inner and outer relatively slidable channels, the inner channels being rigidly interconnected, the lower outer channel being mounted to the cabinet and the upper channel supporting the drawer. An angle member is secured to the drawer side wall and rests on the upper outer channel and is coupled thereto by a resilient latch element mounted on the upper outer channel front end and releasably engaging a front opening in the angle member horizontal web. Intercoupling is effected merely by lowering the drawer onto the channel member and uncoupling is effected merely by pressing the latch element and raising the drawer front end. A resilient loop depends from the latch element and frictionally engages the lower outer channel in the slide contracted position to prevent inadvertent withdrawal of the drawer.

Abstract: A hinge having stationary and turnable components which respectively carry cams which cooperate with each other to displace the turnable component upwardly with respect to the stationary component during opening movement while permitting the turnable component to move downwardly with respect to the stationary component during closing movement. In addition, a spring structure acts on the turnable component to urge the latter to carry out its closing movement with respect to the stationary component.

Abstract: A roller assembly includes a base plate having an opening, a tubular outer race member formed of polymeric resin and a coaxial tubular inner race member formed of metal. The outer race member is open at its distal end and is provided with an annular proximal end wall adjacent the base plate having its central opening coaxial with the base plate opening and a forwardly directed lip along its inner front border. The inner race member has a distal flange registering with the outer race member distal end and a tubular proximal section projecting through the end wall and base plate openings and having its end upset into engagement with the rear borders of the base plate opening.