초록 ▼

A rotation locker stand for outdoor umbrellas includes a rotor, which is rotatably disposed in a chamber of a base housing, including a rotor axial socket for securely and uprightly holding a shaft of the outdoor umbrella, and an actuator for detachably and selectively engaging with the rotor in suc

A rotation locker stand for outdoor umbrellas includes a rotor, which is rotatably disposed in a chamber of a base housing, including a rotor axial socket for securely and uprightly holding a shaft of the outdoor umbrella, and an actuator for detachably and selectively engaging with the rotor in such a manner that when the actuator is engaged with the rotor, the rotor is in the locking position, when the actuator is disengaged with the rotor, the rotor is adapted for freely rotating in the chamber.

대표청구항 ▼

A rotation locker stand for outdoor umbrellas includes a rotor, which is rotatably disposed in a chamber of a base housing, including a rotor axial socket for securely and uprightly holding a shaft of the outdoor umbrella, and an actuator for detachably and selectively engaging with the rotor in suc

A rotation locker stand for outdoor umbrellas includes a rotor, which is rotatably disposed in a chamber of a base housing, including a rotor axial socket for securely and uprightly holding a shaft of the outdoor umbrella, and an actuator for detachably and selectively engaging with the rotor in such a manner that when the actuator is engaged with the rotor, the rotor is in the locking position, when the actuator is disengaged with the rotor, the rotor is adapted for freely rotating in the chamber. ating, comprising: a spacecraft having an external surface, and a coating on the external surface of the spacecraft, the coating including a binder, and a plurality of pigment particles bound together by the binder, each pigment particle comprising a pigment material which stores electronic charge when exposed to an electron flux, and which thereafter releases the stored electronic charge over a period of time. 22. The spacecraft protected by the coating of claim 21, wherein the coating further includes a plurality of active secondary particles. 23. The spacecraft protected by a coating of claim 21, wherein the coating further includes a plurality of inert particles. 24. The spacecraft protected by a coating of claim 21, wherein the spacecraft further includes a bias voltage supply in communication with the coating. 25. The spacecraft protected by a coating of claim 24, wherein the spacecraft further includes a feedback controller for the bias voltage supply. 26. A coating material, comprising: a binder; a plurality of pyroelectric pigment particles, each pyroelectric pigment particle comprising a pyroelectric pigment material having a ferroelectric/paraelectric transition; and a plurality of active secondary particles, the active secondary particles being electrically conductive and non-ferroelectric, wherein the plurality of pyroelectric pigment particles and the plurality of active secondary particles are bound together by the binder. 27. A coating material, comprising: a binder; and a plurality of doped pyroelectric pigment particles, the particles being doped to a sufficient extent that the electrical surface resistivity of the coating material is less than or equal to about 1010ohms per square at room temperature. tor providing for rapid rotation of said spreader; a brace, said bracket connecting to the support column, and also extending forwardly thereof, a granular material hopper, said granular material hopper being supported by said brace, said granular material hopper having a bottom wall, said bottom wall incorporating a series of apertures therein, and provided for dispensing of the granular material during operating of said spreader; a control plate, said control plate pivotally secured below and to the bottom hopper wall, said control plate including a series of apertures therethrough, and upon pivot of said control plate providing for alignment of one or more of the hopper bottom wall apertures with the control plate apertures to regulate the quantity of dispensing of granular material from the spreader during its operation; a solenoid, said solenoid being operatively associated with the support column, and interconnecting with the control plate, such that upon actuation of the solenoid regulating the degree of pivot of the control plate to provide for control in the dispensing of the granular material from the spreader during its operation. 2. The granular material spreader of claim 1 wherein said solenoid connects to the support column. 3. The granular material spreader of claim 1 and including a link between the solenoid and the control plate to provide for actuation of the control plate upon energization of the said solenoid. 4. The granular material spreader of claim 3 wherein said link includes a pivot lever and cable to provide for pivot of the control plate during its actuation. 5. The granular material spreader of claim 3 wherein said link includes a link rod interconnecting between the solenoid and the control plate to provide for regulation in the degree of pivot of the control plate during actuation of the solenoid. 6. The granular material spreader of claim 3 wherein a lever interconnects between the solenoid and the control plate to provide for controlled pivot of the control plate during actuation of the solenoid to regulate the amount of granular material being dispensed by the spreader during its operation. 7. The granular material spreader of claim 3 and including a lever support, said lever support connecting to the column support, said solenoid being connected with the lever support and when energized providing for regulating the degree of pivot to the control plate to regulate the quantity of granular material being dispensed by the spreader. 8. The granular material spreader of claim 7 wherein the solenoid interconnects by one of a cable, lever, and link with the control plate when regulating the degree of pivot of the control plate for regulating the quantity of granular material being dispensed by the spreader. 9. The granular material spreader of claim 7 wherein said pivotal lever connecting to the lever support, said lever support including a slot and adjustment nut therein, the adjustment of the adjustment nut within the slot of the lever support regulating the degree of pivot to the control plate and alignment of select apertures to regulate the quantity of granular material being dispensed by the spreader upon energization of its motor and said solenoid.