Abstract:
A wireless assessment system includes a plurality of response devices, including at least one plug-in device in signal communication with a subject computer station. The at least one plug-in device is configured to receive subject response data from the subject computer station. The at least one plug-in device has a computer-readable medium, a radio frequency transceiver, a plug-in device operating system, and logic. The plug-in device operating system is configured to block a subject from accessing an operating system of the subject computer station. The logic is configured to store the subject response data in the computer-readable medium. The logic is further configured to instruct radio frequency transceiver to wirelessly transmit the subject response data. The system further includes at least one base unit having a base unit radio frequency transceiver configured to receive the subject response data from the at least one plug-in device.
Abstract:
A valve body (91) for enabling release of pressurized steam from a pressure vessel, the valve body comprising: a steam inlet (92), a steam outlet (93), and an internal wall defining a flow path between said inlet and said outlet, wherein at least a portion (102) of said internal wall in a region opposed to the steam inlet is removable.
Abstract:
An inexpensive enclosure providing a protected space on a beach, lawn or the like. An inflatable tube forms a wall surrounding a space having an open end, so that a user is shielded from small kicked or thrown material or objects, running pets and the like. The tubular wall has flaps extending from its bottom surface, with pouches or separate tubes which a user fills at the site to hold the enclosure in place. The enclosure may have a floor, and may have attachment portions for removably connecting an extension unit having a floor which extends beyond the open end of the space between side portions of the wall.
Abstract:
A product-carrying unit side portions extending along two opposite regions for engagement with respective support features of a product treatment chamber. A floor region of the unit extends between the side portions and consists of an array of floor region portions with together define a discontinuous upper product-carrying surface of the unit. The surfaces are suitably defined by the upper surfaces of the ribs of the unit. The spaces between the top surfaces of the ribs provide access to the underside of product supported on the discontinuous product supporting surface of the unit and enable heat exchange contact between the heat exchange medium and the underside of the product. The floor region of the unit is shaped to define ducts through which flow of heat exchange medium is directed for contact with the underside of the product supported on the unit.
Abstract:
A valve (61) for enabling release of pressurized steam from a pressure vessel has a displaceable closure member (67) which is maintained in its closed disposition by exposure to the pressure of the steam within the pressure vessel. The closure member (67) is displaced between its closed disposition and an open disposition by a double-acting actuator (69), suitably an air-driven piston/cylinder device, the closure member (67) being preferably mounted at one axial end of a spindle (68) extending between the closure member (67) and the actuator (69). The closure member (67) is suitably mounted for substantially metal-to-metal contact with a valve seat portion (63), without interposition of any sealing element, preferably for substantially vertical displacement between its closed and dispositions.
Abstract:
A valve (61) for enabling release of pressurized steam from a pressure vessel has a displaceable closure member (67) which is maintained in its closed disposition by exposure to the pressure of the steam within the pressure vessel. The closure member (67) is displaced between its closed disposition and an open disposition by a double-acting actuator (69), suitably an air-driven piston/cylinder device, the closure member (67) being preferably mounted at one axial end of a spindle (68) extending between the closure member (67) and the actuator (69). The closure member (67) is suitably mounted for substantially metal-to-metal contact with a valve seat portion (63), without interposition of any sealing element, preferably for substantially vertical displacement between its closed and dispositions.
Abstract:
A valve body (91) for enabling release of pressurized steam from a pressure vessel, the valve body comprising: a steam inlet (92), a steam outlet (93), and an internal wall defining a flow path between said inlet and said outlet, wherein at least a portion (102) of said internal wall in a region opposed to the steam inlet is removable.
Abstract:
A steam peeling system has a rotatable pressure vessel (1) for steam treating and peeling product. The vessel is substantially spherical, having an oblong configuration with opposed flattened side surfaces. The pressure vessel has at least one internal lifter (51a, 51b, 51c) for entraining and lifting the product relative to the axis of rotation of the pressure vessel (1) when it is rotated. The pressure vessel also at least one internal region (53) that is closed-off against ingress of steam during product treatment. This region (53) defines a steam saver. The system can include a batcher for delivering the product to be peeled to the vessel. The pressure in the vessel can be released on completion of a peeling operation. Arrangements can be included to minimize release of entrained solid matter or odors in the exhaust steam. A controller minimizes unproductive displacement of the pressure vessel and can control the rotation speed and direction.
Abstract:
A closure for a large sized opening in a pressure vessel has a lid longitudinally movable between an open covering position in which it is aligned with the opening but spaced apart from it, and perpendicularly displaceable between the covering position and sealing position in which it engages the sealing edge of the opening. The lid is moved by a hydraulic or pneumatic ram between the open and covering positions and is carried by rollers mounted on shafts affixed to the lid which run on longitudinal support surfaces. The shafts are rotatably mounted in bearings fixed to the lid and are coupled together for simultaneous rotation, while the rollers are eccentric relative to the bearings. The ram applies torque to the shafts in one sense during closing movement of the lid and in the opposite sense during opening movement of the lid. A follower member or members fixedly secured to one of the shafts engage(s) guide means which prevent the shafts rotating during movement of the lid between the open and covering positions. When the lid reaches the covering position, engagement between the follower member or members and the guide means ceases so that the shafts rotate and the lid is displaced from the covering position to the sealing position by the relative eccentricity of the rollers and bearings. A cam surface is provided for guiding at least one follower member during return displacement of the lid between the sealing position and the covering position. Two embodiments of the invention, applied to top and bottom closures, are described.