Abstract: A knock-down portable partition system has cover panels supported on a post and beam framework designed for quick and easy on-site manual assembly. The framework includes at least two vertical posts and at least two structural beams rigidly, yet detachably interconnecting the vertical posts. Connectors secure the beams to the posts, such that the partition system can be assembled and disassembled manually. The partition system may include utility troughs shaped to retain wires, cabling, etc. therein to provide power and/or communication to the system. The utility troughs have opposite ends shaped to be detachably mounted to the posts.

Abstract: Audio apparatus (30) comprising a piezoelectric transducer (44) and coupling means (54) for coupling the transducer to a user's pinna (32) whereby the transducer excites vibration in the pinna (32) to cause it to transmit an acoustic signal from the transducer (44) to a user's inner ear, characterised in that the transducer is embedded in a casing (42) of relatively soft material and the casing (42) is mounted to a housing (34) of relatively hard material such that a cavity (48) is defined between the casing (42) and housing (34).

Abstract: A knock-down portable partition system has cover panels supported on a post and beam framework designed for quick and easy on-site manual assembly. The framework includes at least two vertical posts and at least two structural beams rigidly, yet detachably interconnecting the vertical posts. Connectors secure the beams to the posts, such that the partition system can be assembled and disassembled manually. The partition system may include utility troughs shaped to retain wires, cabling, etc. therein to provide power and/or communication to the system. The utility troughs have opposite ends shaped to be detachably mounted to the posts.

Abstract: A knock-down portable partition system has cover panels supported on a post and beam framework designed for quick and easy on-site manual assembly. The framework includes at least two vertical posts and at least two structural beams rigidly, yet detachably interconnecting the vertical posts. Connectors secure the beams to the posts, such that the partition system can be assembled and disassembled manually. The partition system may include utility troughs shaped to retain wires, cabling, etc. therein to provide power and/or communication to the system. The utility troughs have opposite ends shaped to be detachably mounted to the posts.

Abstract: A method of producing a reflector sheet, which method comprises treating an Al alloy sheet to increase the total reflectance of a surface of the sheet for use as a lighting reflector by bringing the sheet into contact with an acid or alkaline fluid that dissolves aluminium metal, said fluid having a viscosity of less than 0.01 Pa·s, under conditions to remove from 10 nm to 2000 nm of metal from the surface, and cutting or forming the treated Al alloy sheet into the shape of a reflector sheet.

Abstract: An animal handling device, including at least one securing device, and a primary sensor system, and a secondary sensor system characterised in that both the primary and secondary sensor systems must be simultaneously activated in order to trigger the securing device to hold the animal.

Abstract: A knock-down portable partition system has cover panels supported on a post and beam framework designed for quick and easy on-site manual assembly. The framework includes at least two vertical posts and at least two structural beams rigidly, yet detachably interconnecting the vertical posts. Connectors secure the beams to the posts, such that the partition system can be assembled and disassembled manually. The partition system may include utility troughs shaped to retain wires, cabling, etc. therein to provide power and/or communication to the system. The utility troughs have opposite ends shaped to be detachably mounted to the posts.

Abstract: A knock-down portable partition system has cover panels supported on a post and beam framework designed for quick and easy on-site manual assembly. The framework includes at least two vertical posts and at least two structural beams rigidly, yet detachably interconnecting the vertical posts. Connectors secure the beams to the posts, such that the partition system can be assembled and disassembled manually. The partition system may include utility troughs shaped to retain wires, cabling, etc. therein to provide power and/or communication to the system. The utility troughs have opposite ends shaped to be detachably mounted to the posts.

Abstract: An animal handling device, including at least one securing device, and a primary sensor system, and a secondary sensor system characterised in that both the primary and secondary sensor systems must be simultaneously activated in order to trigger the securing device to hold the animal.

Abstract: A knock-down portable partition system has cover panels supported on a post and beam framework designed for quick and easy on-site manual assembly. The framework includes at least two vertical posts and at least two structural beams rigidly, yet detachably interconnecting the vertical posts. Connectors secure the beams to the posts, such that the partition system can be assembled and disassembled manually. The partition system may include utility troughs shaped to retain wires, cabling, etc. therein to provide power and/or communication to the system. The utility troughs have opposite ends shaped to be detachably mounted to the posts.

Abstract: A knock-down partition panel frame includes a pair of spaced apart generally upright posts, each having at least one receptacle defining a tapered surface. The partition panel frame further includes at least one generally horizontal member extending between and interconnecting the posts. The horizontal member includes fastenerless connectors at opposite ends thereof, each having at least one connecting element engaging with the tapered surface to thereby securely interconnect the posts and the horizontal member to define a rigid partition frame having an interior space. A cover panel is secured to the partition frame, and closes off at least a portion of the interior space.

Abstract: A knock-down portable partition includes a rigid panel frame having a central portion. The partition includes at least one cover panel covering at least a portion of the central portion of the rigid panel frame. Connectors detachably mount the cover panel on the panel frame to facilitate assembly and removal of the cover panel on the panel frame. The rigid panel frame includes at least two vertical posts having an upper end, a lower end, and opposite side faces. The opposite faces have at least two beam connection ports thereon positioned adjacent the upper and lower ends of the associated one of the posts. The panel frame also includes upper and lower beams extending generally horizontally between the vertical posts adjacent the upper and lower ends thereof, and interconnecting the vertical posts adjacent the connection ports. The panel frame includes quick-disconnect connectors such as movable lock members positioned on one of the posts and the beams adjacent the connection ports.

Abstract: Audio apparatus (50) comprising a transducer and a coupler for coupling the transducer to a user's pinna. The coupler may be in the form of a hook (56), and leads (58) connect the audio apparatus (50) to a remote sound source. The transducer (52) is mounted to a lower straight end of the hook (56). An upper curved end of the hook (56) hooks over the junction between the user's ear and head so that the transducer (52) touches a lower rear face of the pinna adjacent the concha. The transducer excites vibration in the pinna whereby an acoustic signal from the transducer is transmitted to the user's inner ear by radiation of pressure waves and/or by conduction of vibrational energy through the outer and middle ear.

Abstract: A partition includes at least two vertical posts with upper and lower beams having opposite ends thereof interconnecting the vertical posts to define when in an assembled condition, a rigid panel frame having a substantially open interior. The panel frame defines a vertical dimension. At least one cover panel is configured to enclose at least a portion of the open interior of the panel frame, and is removably mounted on the panel frame to readily access the open interior thereof. The cover panel defines an interior surface and a center portion spaced-apart from the posts. A cover panel brace is connected with the upper beam, and has an outer surface abutting the interior surface of the cover panel to support the cover panel adjacent the center portion to prevent flexing of the cover panel. The cover panel brace is longitudinally extensible to accommodate variations of the vertical dimension between the upper and lower beams.

Abstract: A knock-down portable partition includes a rigid panel frame having a central portion. The partition includes at least one cover panel covering at least a portion of the central portion of the rigid panel frame. Connectors detachably mount the cover panel on the panel frame to facilitate assembly and removal of the cover panel on the panel frame. The rigid panel frame includes at least two vertical posts having an upper end, a lower end, and opposite side faces. The opposite faces have at least two beam connection ports thereon positioned adjacent the upper and lower ends of the associated one of the posts. The panel frame also includes upper and lower beams extending generally horizontally between the vertical posts adjacent the upper and lower ends thereof, and interconnecting the vertical posts adjacent the connection ports. The panel frame includes quick-disconnect connectors such as movable lock members positioned on one of the posts and the beams adjacent the connection ports.

Abstract: A partition includes at least two vertical posts with upper and lower beams having opposite ends thereof interconnecting the vertical posts to define when in an assembled condition, a rigid panel frame having a substantially open interior. The panel frame defines a vertical dimension. At least one cover panel is configured to enclose at least a portion of the open interior of the panel frame, and is removably mounted on the panel frame to readily access the open interior thereof. The cover panel defines an interior surface and a center portion spaced-apart from the posts. A cover panel brace is connected with the upper beam, and has an outer surface abutting the interior surface of the cover panel to support the cover panel adjacent the center portion to prevent flexing of the cover panel. The cover panel brace is longitudinally extensible to accommodate variations of the vertical dimension between the upper and lower beams.

Abstract: A knock-down portable partition includes a rigid panel frame having a central portion. The partition includes at least one cover panel covering at least a portion of the central portion of the rigid panel frame. Connectors detachably mount the cover panel on the panel frame to facilitate assembly and removal of the cover panel on the panel frame. The rigid panel frame includes at least two vertical posts having an upper end, a lower end, and opposite side faces. The opposite faces have at least two beam connection ports thereon positioned adjacent the upper and lower ends of the associated one of the posts. The panel frame also includes upper and lower beams extending generally horizontally between the vertical posts adjacent the upper and lower ends thereof, and interconnecting the vertical posts adjacent the connection ports. The panel frame includes quick-disconnect connectors such as movable lock members positioned on one of the posts and the beams adjacent the connection ports.

Abstract: A knock-down portable partition including a panel frame having a central portion. At least one cover panel covers at least a portion of the central portion of the panel frame. Connectors detachably mount the cover panel on the panel frame to facilitate assembly and removable of the cover panel on the panel frame. The panel frame includes at least two vertical posts each having an upper end, a lower end and opposite faces with at least two beam connection ports thereon positioned adjacent the upper and lower ends of the associated one of the posts. The panel frame also includes upper and lower beams extending generally horizontally between the vertical posts adjacent the upper and lower ends thereof, and interconnecting the same adjacent the connection ports. Movable lock members having a flexible extension are positioned on one of the posts and the beams adjacent the connection ports, and are movably mounted thereon for shifting between an unlocked position and a locked position.

Abstract: A knock-down portable partition includes a rigid panel frame having a central portion. The partition includes at least one cover panel covering at least a portion of the central portion of the rigid panel frame. Connectors detachably mount the cover panel on the panel frame to facilitate assembly and removal of the cover panel on the panel frame. The rigid panel frame includes at least two vertical posts having an upper end, a lower end, and opposite side faces. The opposite faces have at least two beam connection ports thereon positioned adjacent the upper and lower ends of the associated one of the posts. The panel frame also includes upper and lower beams extending generally horizontally between the vertical posts adjacent the upper and lower ends thereof, and interconnecting the vertical posts adjacent the connection ports. The panel frame includes quick-disconnect connectors such as movable lock members positioned on one of the posts and the beams adjacent the connection ports.

Abstract: A knock-down portable partition system has cover panels supported on a post and beam framework designed for quick and easy on-site manual assembly without tools. The framework includes at least two vertical posts with at least two beam connection ports on opposite side faces adjacent upper and lower portions of the posts. Each beam connection port has a window through the side face of the post, and first and second horizontally aligned fastener apertures in front and rear faces of the post adjacent opposite sides of the window. At least two structural beams rigidly, yet detachably interconnect the vertical posts at the upper and lower portions thereof. Each end of each of the structural beams is shaped for close reception in an associated post window, and includes a vertically oriented, transverse notch through a lower portion of the beam in which a lower edge of the post window is closely received to longitudinally lock each beam in its associated post.