52 results about "Floor openings" patented technology

A battery cap is provided for engagement in a fill port of a cell of a deep cycle, lead-acid electrical storage battery. The battery cap is formed of a hollow, tubular body having an upper end with an expansive mouth opening, and a lower end at which a transverse floor extends radially inwardly. The floor includes a central, annular convex downwardly projecting portion that defines a central fluid passage opening. The interior of the tubular wall defines a radially inwardly projecting flame arrester seat spaced from both the upper and lower ends of the body. A pair of gas escape ports are defined in the tubular wall between the flame arrester seat and the mouth opening. A diverter is located in the lower portion of the tubular body beneath a disc shaped micropore filter that serves as the flame arrester and which is seated on the flame arrester seat. The diverter is formed with a generally disc shaped, horizontal plate having diametrically opposed notches at its peripheral edge and a pair of legs of that have an arcuate cross-section and which rest upon the floor to partially surround the central opening in the floor. A battery cap having this internal structure causes drops of electrolyte to intermittently lodge in the central floor opening, thereby forming a temporary fluid seal that is repeatedly broken to allow venting of gas and reestablished to aid in protecting the micropore filter from contaminants.

A battery cap is provided for engagement in a fill port of a cell of a deep cycle, lead-acid electrical storage battery. The battery cap is formed of a hollow, tubular body having an upper end with an expansive mouth opening, and a lower end at which a transverse floor extends radially inwardly. The floor includes a central, annular convex downwardly projecting portion that defines a central fluid passage opening. The interior of the tubular wall defines a radially inwardly projecting flame arrester seat spaced from both the upper and lower ends of the body. A pair of gas escape ports are defined in the tubular wall between the flame arrester seat and the mouth opening. A diverter is located in the lower portion of the tubular body beneath a disc shaped micropore filter that serves as the flame arrester and which is seated on the flame arrester seat. The diverter is formed with a generally disc shaped, horizontal plate having diametrically opposed notches at its peripheral edge and a pair of legs of that have an arcuate cross-section and which rest upon the floor to partially surround the central opening in the floor. A battery cap having this internal structure causes drops of electrolyte to intermittently lodge in the central floor opening, thereby forming a temporary fluid seal that is repeatedly broken to allow venting of gas and re-established to aid in protecting the micropore filter from contaminants.

A balance (1) has a balance housing (2), which, when the balance is set up for operation, has an opening at its topside to pass a load-introducing member (4). The housing has a draft shield arrangement (5), separable from, and attachable to, the housing. An opening (7) on a floor (6) of the draft shield arrangement corresponds to the housing opening and allows the load-introducing member to pass. A design that facilitates cleaning while keeping the height of the balance low is achieved with a fastening arrangement (8) for the draft shield arrangement. The fastening arrangement allows the draft shield arrangement to be fastened centrally at the load-introducing member passage. A rim on the housing opening operates as a first part (8′) and provides a form-locking connection with a second part that is attached to the draft shield arrangement at the draft shield floor opening.

A hold open arm assembly for a non-vertically hinged door prevents a door for a roof or floor opening from closing unexpectedly and allows one-handed operation. The assembly includes an elongated arm that bears directly against a stop aligned with the axis of the arm when a closing force, such as a wind load, is applied directly to the door. The arm has a guide that engages a guide slot in a bracket attached to the door. The guide slot is tapered and widens near the stop. When a closing force is applied to a handle connected to the arm, the guide moves parallel to the guide slot and the arm clears the stop, allowing the door to close. When the closing force is applied to the door, and not the handle, the guide moves perpendicular to the guide slot so that the arm engages the stop. The guide is provided with a low friction roller bearing for smooth operation.

A balance (1) has a balance housing (2), which, when the balance is set up for operation, has an opening at its topside to pass a load-introducing member (4). The housing has a draft shield arrangement (5), separable from, and attachable to, the housing. An opening (7) on a floor (6) of the draft shield arrangement corresponds to the housing opening and allows the load-introducing member to pass. A design that facilitates cleaning while keeping the height of the balance low is achieved with a fastening arrangement (8) for the draft shield arrangement. The fastening arrangement allows the draft shield arrangement to be fastened centrally at the load-introducing member passage. A rim on the housing opening operates as a first part (8′) and provides a form-locking connection with a second part that is attached to the draft shield arrangement at the draft shield floor opening.

A floor grommet for use in building and office structures supplied with air conditioning via under floor plenum. Directed flow of conditioned air is optimized by limiting the escape of air from the plenum into the space above the floor by leakage through floor openings provided for power cables, data cables and the like. Specialized floor grommets installed in the cable openings are comprised of a surrounding frame mounting sealing elements comprised of thin, flexible elements which are anchored at one end in the grommet frame and extend toward the center of the opening, from each side, to effectively close the opening against significant flow of conditioned air from the plenum below. Cables passing through the grommet opening cause minimal deflection of the flexible elements to limit the escape of conditioned air. Preferably, the resilient, flexible elements are filamentary in nature. To particular advantage, the filamentary sealing elements may be installed in multiple stages, with stages underneath being in contact with stages above, in outer portions thereof. Additionally, solid, van-like sealing elements may be provided to assist in centering of the cable elements, when cables are installed, and to provide a substantially complete seal, for those openings in which no cables are installed. The floor grommet of the invention is designed for initial or retrofit installation. Significant economies in the usage of conditioned air are realized when the floor grommets are employed.

A mounting flange for attaching an HVAC air diffuser terminal in an opening in a floor or other mounting surface. The mounting flange includes a trim ring and a flange clip. The flange clip is adjustably and movably received in a slot defined a side of the trim ring. A pawl on the flange clip engages with ratchets defined in a surface of the trim ring adjacent to the slot to maintain the flange clip in selected position relative the underside of a floor. The air diffuser terminal is secured in the floor opening between gripping surfaces on the flange clip and the trim ring. An optional screw operably connects the flange clip with the trim ring so that the diffuser may be securely tightened in the floor opening.

Retrieving a down hole tool at a lower end of a string of casing can be performed with drill pipe during a casing-while-drilling operation. The operator suspends the casing in the well from a drilling rig floor opening. A string drill pipe is lowered into the casing while the casing is suspended for engaging and retrieving the down hole tool. When circulation is desired, the operator secures a circulation tool to an upper end of the drill pipe, then lowers the drill pipe and the circulation tool to close off an upper end of an inner annulus between the drill pipe and the casing. The operator circulates fluid down the circulation tool and the drill pipe and back up an outer annulus surrounding the casing. The connection between the circulation tool and the casing allows the operator to reciprocate the casing.

The invention relates to a battery comprising liquid electrolyte, used in moving vehicles, wherein the battery includes a battery housing comprising side walls, a housing floor and a cover, a liquid electrolyte, the level of which is within predetermined tolerance limits, electrodes, a flow channel plate arranged at least on one side wall so as to form .a flow channel, wherein the upper end of said flow channel serves as exhaust port, a mixing vessel comprising a mixing vessel floor and mixing vessel side walls being arranged above the electrodes wherein the mixing vessel side wall adjoining the exhaust port is formed as an overflow the mixing vessel floor being located below the minimum level for the liquid electrolyte, which minimum level is provided for operational reasons, and at least one floor opening being provided in the mixing vessel floor.

The invention discloses a water discharging device for a refrigerated container. The device comprises a connecting cylinder and a floater component; the connecting cylinder is arranged at a floor opening hole of the refrigerated container, the upper end of the connecting cylinder is opened, and a flow guide hole is formed in the lower end of the connecting cylinder; the floater component is arranged in the connecting cylinder, and the floater component and the connecting cylinder are connected together through an interlocking structure so as to prevent the floater component from moving towardsthe interior of the refrigerated container to be separated from the connecting cylinder due to vacuum negative pressure; and the interlocking structure comprises a locking concave part arranged on the inner wall of the connecting cylinder and a matching part arranged on the floater component, the matching part is arranged to be matched with the locking concave part in a locking mode. According tothe water discharging device for the refrigerated container, the locking concave part is matched with the matching part in the locking mode, so that the water discharging device is prevented from losing efficacy caused by the fact that the floater component moves towards the interior of the refrigerated container to be separated from the connecting cylinder due to vacuum negative pressure.

The invention belongs to the field of basement structure demolition and renovation, and particularly relates to a construction method for a basement pile foundation with high water level. The construction method sequentially comprises the following steps of pre-construction preparation, floor reinforcement, hole opening, sleeve placement, pile forming construction and sleeve recovery. The method has at least the following advantages that a water drill is adopted to opening holes for floor opening, so that the noise pollution and the dust pollution are reduced; a sleeve is used for drainage, sothat the pollution generated by mud to an existing basement structure in the traditional pile repairing construction is avoided; mud generated by the pile repairing construction is treated through amud-water separation system and then transported out of a factory, so that the treatment efficiency is improved, and the pollution to the environment is reduced; generated construction waste is smalland is treated in a centralized clearing and transportation mode, so that the cleanliness of a construction site is guaranteed; and continuous precipitation is avoided, underground water resources areprotected, and the influence on the surrounding environment is reduced at the same time.

A smoke trap includes a receptacle with a floor opening, a tubular riser surrounding the opening and extending from the floor into a receptacle cavity, and a capping element disposed over an aperture in a riser. The capping element has an upper wall and a side wall partially bounding a body cavity and extending from the upper wall toward the floor. The capping element covers the aperture from above and from the side without fluidly sealing the aperture such that the aperture is in fluid communication with the body cavity and the body cavity is in fluid communication with the receptacle cavity. A portion of the side wall extends past the aperture such that the aperture is disposed within the body cavity. Grease management systems that include the smoke trap have means for transferring grease into the receptacle cavity to inhibit smoke from escaping the receptacle cavity through the opening.

A guide body for a cable guide includes a stem having an upper end, a lower end, and a longitudinal axis extending between the upper and lower ends, and base adjacent the lower end of the stem. The guide body is rotatable about the longitudinal axis of the stem to configure the base from an unlocked orientation relative to the wire basket cable tray, in which the base is receivable in and removable from a floor opening of a wire basket cable tray, and a locked orientation relative to the wire basket cable tray, in which the base is secured to the wire basket cable tray in the floor opening. A snap-fit component attaches a roller retainer to a stem body by snap-fit connection when a roller is received on the stem body to retain the roller on the stem body.

The invention discloses an elevator preventing the generation of a scissoring accident, and relates to an elevator, in particular to a safety elevator. One part of a rail A of an opening / closing door slide rail strip is arranged at the top end of a car body; the other part of a rail B is arranged on the inner wall of a car body lifting channel parallel to each floor opening / closing door operation rail; when the car body is operated to be overlapped with floor opening / closing doors, the rail A and the rail B are in butt joint to form a complete rail, and a slide opening / closing door and the floor opening / closing doors are synchronously opened; and when a door of the car body is not closed, the edge of the slide opening / closing door of the car body is clamped by the slide rail strip on the inner wall of the car body lifting channel, and the car body is not ascended or descended at this moment, so that the generation of the scissoring accident is effectively prevented.

Retrieving a down hole tool at a lower end of a string of casing can be performed with drill pipe during a casing-while-drilling operation. The operator suspends the casing on a landing sub landed in a drilling rig floor opening. A string of drill pipe is lowered into the casing while the casing is suspended for engaging and retrieving the down hole tool. A spillage preventer in the landing sub prevents spillage of drilling fluid as the drill pipe is being retrieved. When circulation is desired, the operator secures a circulation tool to an upper end of the drill pipe, then lowers the drill pipe and the circulation tool to close off an upper end of an inner annulus between the drill pipe and the casing. A connection between the circulation tool and the landing sub allows the operator to reciprocate the casing.