Abstract:
Embodiments of the invention provide a high-reliability, cost-effective electro- hydraulic servo-valve assembly that is not susceptible to failure caused by contaminated fluid. In particular embodiments, the electro-hydraulic servo-valve assembly includes a rotary valve (22) that may be actuated by either a direct-coupled Limited Angle Torque (LAT) motor, a geared, brushless DC motor, or some other rotary electric actuating element (32) with an integrated driver circuit. In particular embodiments, the rotary valve element made up of an outer sleeve element (24) and an inner spool element (26), with matching ports and slots (30), respectively.
Abstract:
Inventive musical instrument support apparatus and methods relative to independently inventive aspects of support technology. One aspect of the inventive technology may be directed to a collapsible musical instrument stand such as a guitar stand that includes a support element that exhibits an enhanced low profile in a retracted mode. Another aspect of the invention may focus on provision of the capability of simultaneous deployment and retraction of an assembly of multiple musical instrument supports upon reconfiguration of only one of the supports. Inventive musical instrument support stands may include either or both of the individually inventive aspects.
Abstract:
The present invention may provide a support assistive device for a user having a frame assembly (1), a vertical pelvis support element (2) connected to the frame assembly which may primarily support the ischial tuberosities (34), and a horizontal pelvis support element (3) which may primarily support the anterior superior iliac spines (35) of a pelvis (1a). It may provide such support with minimal or no hand or arm support. By supporting on the anterior superior iliac spine (35) on either side, a moment can be created to assist in turning even without the use of hands by simply turning the direction of the pelvis (1a). The created moment of the present invention is more natural to the user in turning the pelvis and as a result the device. The present invention may also provide a fluidic braking assembly (53) for any rotatable elements (48), which can be advantaged to assist a user in supplying an increase of force to actuate the braking action. The braking system may be actuated from a single station or multiple stations and may provide braking in any direction the wheels are turned, that is, omni-directionally. It may also include an elevation assembly (5) that can assist lowering of an upper frame assembly (6) to a corresponding elevation with a lower frame assembly (4) to assist in packaging and in transportation. It may also provide a rotatable swivel lock system (54) for the rotatable elements (48) that may be restrained in various orientations, and may be controlled through a single station.
Abstract:
The present invention may provide a support assistive device for a user having a frame assembly (1), a vertical pelvis support element (2) connected to the frame assembly which may primarily support the ischial tuberosities (34), and a horizontal pelvis support element (3) which may primarily support the anterior superior iliac spines (35) of a pelvis (1a). It may provide such support with minimal or no hand or arm support. By supporting on the anterior superior iliac spine (35) on either side, a moment can be created to assist in turning even without the use of hands by simply turning the direction of the pelvis (1a). The created moment of the present invention is more natural to the user in turning the pelvis and as a result the device. The present invention may also provide a fluidic braking assembly (53) for any rotatable elements (48), which can be advantaged to assist a user in supplying an increase of force to actuate the braking action. The braking system may be actuated from a single station or multiple stations and may provide braking in any direction the wheels are turned, that is, omni-directionally. It may also include an elevation assembly (5) that can assist lowering of an upper frame assembly (6) to a corresponding elevation with a lower frame assembly (4) to assist in packaging and in transportation. It may also provide a rotatable swivel lock system (54) for the rotatable elements (48) that may be restrained in various orientations, and may be controlled through a single station.
Abstract:
A trip block is provided. The trip block includes a single housing which commonly houses multiple valve assemblies. Each valve assembly includes a rotary valve member arrangement. The rotary valve member arrangement includes a spool and a sleeve with a predefined radial clearance between the spool and sleeve.
Abstract:
Inventive musical instrument support apparatus and methods relative to independently inventive aspects of support technology. One aspect of the inventive technology may be directed to a collapsible musical instrument stand such as a guitar stand that includes a support element that exhibits an enhanced low profile in a retracted mode. Another aspect of the invention may focus on provision of the capability of simultaneous deployment and retraction of an assembly of multiple musical instrument supports upon reconfiguration of only one of the supports. Inventive musical instrument support stands may include either or both of the individually inventive aspects.
Abstract:
A safety clutch mechanism (10) for use with utility tripods having telescopically extensible members, such that a single member may be extended a distance and maintained at that distance under an opposing load force. The disclosed clutch device being further capable of allowing continuous, smooth, and controlled compression of the telescoping members in a fashion conducive to increased safety for the operator. By permitting single hand operation, the clutch mechanism reduces the labor intensive task suitable for a single person to operate multiple devices in compression. The clutch mechanism also permits the setting of a desired compression rate automatically. This is accomplished by incrementally reducing the frictional engagement force of the locking mechanism so that it is slightly less than the gravity induced force on the opposing load. Further differentiation of the two forces, in favor of the gravity force, will increase the compression rate. The removal of any load without undesirable extension is accomplished through use of a locking tab which may be frictionally engaged with the extensible feature to prevent such extension while an upward force is applied to the load. Componentized features of the clutch mechanism allow maintenance of the entire device without discarding functional components because of the risk of reduced safety due to damaged components.