摘要:
A support apparatus for a portable weight such as a camera comprising at least a pair substantially friction-free arms which are rotatably and pivotally interconnected at a hinge bracket. One end of the interconnected pair of arms is rotatably and pivotably connected to a mount which may be worn by an operator or attached to a movable support. The other end is adapted to carry a weight such as a camera.Each arm is parallelogram in configuration and is provided with a segmented spring designed to apply a constant force to compensate for the weight applied to the end of each arm. The segmented spring acts as a single spring mounted diagonally across the parallelogram and exerts a force which is equal to the weight applied to the end of the parallelogram arm times the length of its diagonal divided by the distance between the attachment points of the parallelogram to the hinge bracket.In operation, the weight carried by the support apparatus is spacially decoupled from the mount to increase isolation of the weight from the operator or support.
摘要:
An improved equipment stabilizing support apparatus having an upper spar associated with the equipment and a lower spar connected by a double-acting type hinge that provides angular displacement between the upper and lower spars to adjustably balance equipment, and angular displacement around a second axis to allow folding of the lower spar toward the upper spar to an optimum closed configuration regardless of the adjusted balancing position.
摘要:
An equipoising arm structure that can selectively exert force in any direction—lifting, pressing down, or applying lateral bias—with consistent force throughout its range of articulation, comprises a force exerting device having a force exerting structure including a load arm as a first side pivotable about a load pivot, a resilient member attached to the load arm band to a termination point and forming a second side of the force exerting structure. The third side of the structure is formed by a line from the termination point to the load pivot. A first adjustment mechanism moves the termination point to change the length and disposition of the third side of the structure to positions above or below the load pivot. Additional adjustment mechanisms may alter the mounting angle of the entire force exerting structure, and/or the angular relationship between a plurality its force-exerting component devices.
摘要:
The present invention provides a method of separating and purifying Cesium-131 (Cs-131) from Barium (Ba). Uses of the Cs-131 purified by the method include cancer research and treatment, such as for the use in brachytherapy. Cs-131 is particularly useful in the treatment of faster growing tumors.
摘要:
The present invention provides a method of separating and purifying Cesium-131 (Cs-131) from Barium (Ba). Uses of the Cs-131 purified by the method include cancer research and treatment, such as for the use in brachytherapy. Cs-131 is particularly useful in the treatment of faster growing tumors.
摘要:
This invention includes methods of fabricating brachytherapy implant seeds, methods of fabricating brachytherapy implant seed cores, and brachytherapy implant seeds independent of method of fabrication. In one implementation, a brachytherapy implant seed includes a sealed inorganic metallic cylinder having a radioactive core received therein. The radioactive core includes an inorganic amorphous silicate glass tube having an exterior surface extending axially along the tube. An inorganic crystalline ceramic coating is received on at least a portion of the inorganic amorphous glass tube exterior surface. The coating includes a therapeutic dose of radioactive material. A radiographic marker is received within the sealed inorganic metallic cylinder. Other aspects and implementations are contemplated.
摘要:
A force exerting device having a force exerting structure including a load arm as a first side, pivotable about a load pivot, a resilient member attached to the load arm and to a termination point and forming a second side of the force exerting structure. The third side of the structure is formed by a line from the termination point to the load pivot. A first adjustment mechanism moves the termination point to change the length of the third side of the structure. A second adjustment mechanism moves the termination point in a direction different than the first adjustment direction so the termination point location can cross a substantially plumb line passing through the load pivot. A force modification device may be included to dynamically adjust the resilient member termination point position in response to motion of the load arm.
摘要:
A support apparatus for a portable weight such as man carried camera comprising at least a pair of rotatably interconnected arms, one end of which is rotatably and pivotably supported by a support vest worn by an operator and the other end of which is arranged and configured to support weight such as a camera and a spring means provided on each arm to compensate for the weight applied to the end of each arm. In operation, the weight mounted on the support apparatus is spacially decoupled from the operator and the position of the weight is not affected by motion of the operator.