Patents Assigned to Inventec International Limited
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Patent number: 4223881Abstract: A workbench of saw-horse height has its top formed by a pair of longitudinally extending top members which form a working surface and which are carried by transverse supports. One of the top members is fixed with respect to the supports but the other is horizontally movable towards and away from the fixed top member to form a vice between the opposed vertical faces of the top members. Adjacent each end the top members are interconnected by screw threaded rods which are restrained against axial movement at their ends adjacent the fixed top members but which are received in nuts connected to the movable top member. The connection of the nut to the movable top member allows independent operation of the screw threaded rods to permit the gap between the vertical faces to be greater at one end than at the other.Type: GrantFiled: January 29, 1979Date of Patent: September 23, 1980Assignee: Inventec International LimitedInventor: Ronald P. Hickman
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Patent number: 4216949Abstract: A workbench of saw-horse height has its top formed by a pair of longitudinally extending top members which form a working surface and which are carried by transverse supports. One of the top members is fixed with respect to the supports but the other is horizontally movable towards and away from the fixed top member to form a vice between the opposed vertical faces of the top members. Adjacent each end the top members are interconnected by screw threaded rods which are restrained against axial movement at their ends adjacent the fixed top members but which are received in nuts connected to the movable top member. The connection of the nut to the movable top member allows independent operation of the screw threaded rods to permit the gap between the vertical faces to be greater at one end than at the other.Type: GrantFiled: November 24, 1978Date of Patent: August 12, 1980Assignee: Inventec International LimitedInventor: Ronald P. Hickman
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Patent number: 4202428Abstract: A foldable ladder is disclosed having a central and two outer parallel support members or "stiles" and a plurality of steps connected between the central and the outer stiles. Each step is arranged to fold between an erected position, in which it extends generally at right angles to the longitudinal direction of the stile to which it is connected, and a storage position in which the step lies generally parallel to the central stile with the outer stile to which it is connected extending parallel to and in close juxtaposition with the central stile. Engaging means are provided adjacent the upper end of the central stile for holding cooperating engaging means of a supporting member such as another ladder section (forming an extension ladder) or a prop extending to ground (forming a step ladder).Type: GrantFiled: August 31, 1977Date of Patent: May 13, 1980Assignee: Inventec International LimitedInventor: Ronald P. Hickman
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Patent number: 4169606Abstract: A workbench of saw-horse height has its top formed by a pair of longitudinally extending top members which form a working surface and which are carried by transverse supports. One of the top members is fixed with respect to the supports but the other is horizontally movable towards and away from the fixed top member to form a vice between the opposed vertical faces of the top members. Adjacent each end the top members are interconnected by screw threaded rods which are restrained against axial movement at their ends adjacent the fixed top members but which are received in nuts connected to the movable top member. The connection of the nut to the movable top member allows independent operation of the screw threaded rods to permit the gap between the vertical faces to be greater at one end than at the other.Type: GrantFiled: October 28, 1977Date of Patent: October 2, 1979Assignee: Inventec International LimitedInventor: Ronald P. Hickman
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Patent number: 4159821Abstract: A workbench of a collapsible nature includes a top structure comprising a pair of vice members. These can either be spaced from a supporting surface in a first work-mode at saw-horse height or, by lowering of legs, in a second work-mode at full height. Each vice member is provided with two rows of cylindrical bores in which the shank portions of abutment members are axially, slidably received with a snug fit and are thereafter rotatable about a vertical axis to enable the gripping faces of the abutment members to self-align with a workpiece clamped between the abutment members.Type: GrantFiled: March 28, 1977Date of Patent: July 3, 1979Assignee: Inventec International LimitedInventor: Ronald P. Hickman
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Patent number: 4157174Abstract: In the illustrative embodiments of the invention disclosed, a portable, dual-height workbench has front and rear elongate vice members forming the work surface of the bench and a collapsible supporting structure which allows selective positioning of the work surface at either workbench height or sawhorse height above the floor. The collapsible supporting structure includes front and rear, flat leg frames pivoted at the upper ends thereof to the top structure of the bench and closed at the lower ends thereof by horizontal cross pieces. The leg frames pivot relative to the bench top structure between an erected position, in which the frames extend downward from the bench top structure in front-to-rear splayed relation, and a collapsed position, in which the leg frames extend generally parallel to the working surface of the bench.Type: GrantFiled: May 4, 1977Date of Patent: June 5, 1979Assignee: Inventec International LimitedInventors: Ronald P. Hickman, Brian A. Luff
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Patent number: 4140309Abstract: A workbench of saw-horse height has its top formed by a pair of longitudinally extending top members which form a working surface and which are carried by transverse supports. One of the top members is fixed with respect to the supports but the other is horizontally movable towards and away from the fixed top member to form a vice between the opposed vertical faces of the top members. Adjacent each end the top members are interconnected by screw threaded rods which are restrained against axial movement at their ends adjacent the fixed top members but which are received in nuts connected to the movable top member. The connection of the nut to the movable top member allows independent operation of the screw threaded rods to permit the gap between the vertical faces to be greater at one end than at the other.Type: GrantFiled: October 28, 1977Date of Patent: February 20, 1979Assignee: Inventec International LimitedInventor: Ronald P. Hickman
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Patent number: 4127260Abstract: A portable workbench having a top surface including two vise members, one of which is connected to the supporting structure by a pair of releasable gripping devices which enables the vise member to move, in the plane of the support provided by the underlying support framework, toward the other vise member in a rectilinear motion and also in a rotational motion relative to the second vise member. One or the other of the vise members is also connected to the supporting framework by a pair of vise-operating devices which can be operated to exert a force for moving the vise member a small incremental distance toward the first vise member under force to effect the clamping action. A folding leg structure is provided to support the top surface at convenient working height above the floor.Type: GrantFiled: April 2, 1976Date of Patent: November 28, 1978Assignee: Inventec International LimitedInventor: Ronald P. Hickman
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Patent number: 4076229Abstract: A workbench of saw-horse height has its top formed by a pair of longitudinally extending top members which form a working surface and which are carried by transverse supports. One of the top members is fixed with respect to the supports but the other is horizontally movable towards and away from the fixed top member to form a vice between the opposed vertical faces of the top members. Adjacent each end the top members are interconnected by screw threaded rods which are restrained against axial movement at their ends adjacent the fixed top members but which are received in nuts connected to the movable top member. The connection of the nut to the movable top member allows independent operation of the screw threaded rods to permit the gap between the vertical faces to be greater at one end than at the other.Type: GrantFiled: December 22, 1975Date of Patent: February 28, 1978Assignee: Inventec International LimitedInventor: Donald Price Hickman
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Patent number: 4039818Abstract: A mirror has a housing containing batteries and a folding arm which carries a mirror. Adjustment mechanism extends from the housing along the arm to the mirror.Type: GrantFiled: February 24, 1976Date of Patent: August 2, 1977Assignee: Inventec International LimitedInventor: Ronald Price Hickman
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Patent number: 4016954Abstract: A foldable ladder is disclosed having a central and two outer parallel support members or "stiles" and a plurality of steps connected between the central and the outer stiles. Each step is arranged to fold between an erected position, in which it extends generally at right angles to the longitudinal direction of the stile to which it is connected, and a storage position in which the step lies generally parallel to the central stile with the outer stile to which it is connected extending parallel to and in close juxtaposition with the central stile. Engaging means are provided adjacent the upper end of the central stile for holding cooperating engaging means of a supporting membersuch as another ladder section (forming an extension ladder) or a prop extending to ground (forming a step ladder).Type: GrantFiled: March 13, 1975Date of Patent: April 12, 1977Assignee: Inventec International LimitedInventor: Ronald Price Hickman
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Patent number: 3978944Abstract: A foldable ladder is disclosed having a central and two outer parallel support members or "stiles" and a plurality of steps connected between the central and the outer stiles. Each step is arranged to fold between an erected position, in which it extends generally at right angles to the longitudinal direction of each stile to which it is connected, and a storage position in which the step lies generally parallel to the central stile with the outer stile to which it is connected extending parallel to and in close juxtaposition wit the central stile. Engaging means are provided adjacent the upper end of the central stile for holding cooperating engaging means of a supporting member such as another ladder section (forming an extension ladder) or a prop extending to ground (forming a step ladder). Finally, at least one strut is arranged on each side of, and extends outwardly from, the central stile to support the steps and outer stiles when the latter are in the erected position.Type: GrantFiled: March 13, 1975Date of Patent: September 7, 1976Assignee: Inventec International LimitedInventors: Ronald P. Hickman, Brian Anthony Luff, Edgar Ronald Rossell, Derek John Charles Bernard