摘要:
A lighting device (30) having a housing (12) which includes a lamp means, a battery housing to receive at least one battery and a switch means to open and close a circuit between said lamp means and terminals of said at least one battery when located in said housing. Said lighting device includes a lanyard (110, 112) attached to said housing (12) characterised by said lanyard having a proximal end attached to said housing (12) and a distal end, whereby said distal end or a portion of said lanyard (110, 112) is adapted to be releasably attached to said housing (12).
摘要:
The present invention provides a unit cell of a metal-semiconductor field-effect transistor (MESFET). The unit cell of the MESFET includes a MESFET having a source region, a drain region and a gate contact. The gate contact is disposed between the source region and the drain region. The drain region is electrically coupled to the substrate through a contact via hole to the substrate. Related methods of fabricating MESFETs are also provided herein.
摘要:
Rack systems for carrying cargo on a vehicle roof include mechanisms for delivering cargo to the side of the vehicle. Assist devices may be employed to raise and lower cargo.
摘要:
A high power, high frequency semiconductor device has a plurality of unit cells connected in parallel. The unit cells each having a controlling electrode and first and second controlled electrodes. A thermal spacer divides at least one of the unit cells into a first active portion and a second active portion, spaced apart from the first potion by the thermal spacer. The controlling electrode and the first and second controlled electrodes of the unit cell cross over the first thermal spacer.
摘要:
A prosthetic foot formed by one continuous coil spring which has a foot center coil section, a heel extension section, and a forefoot extension section. Lateral and medial and torsional movement are accommodated. Energy is absorbed and stored by the prosthetic foot during heel strike in the gait cycle, energy is transferred to the forefoot extension section during foot roll-forward to toe-off in the gait cycle, and energy is released to provide a propelling force on the prosthetic foot at toe-off in the gait cycle. An apparatus allowing the wearer of the prosthetic foot to feel by physical sensation forces being applied to the prosthetic foot is included in one embodiment.
摘要:
A prosthetic foot formed by one continuous coil spring which has a foot center coil section, a heel extension section, and a forefoot extension section. Lateral and medial and torsional movement are accommodated. Energy is absorbed and stored by the prosthetic foot during heel strike in the gait cycle, energy is transferred to the forefoot extension section during foot roll-forward to toe-off in the gait cycle, and energy is released to provide a propelling force on the prosthetic foot at toe-off in the gait cycle. An apparatus allowing the wearer of the prosthetic foot to feel by physical sensation forces being applied to the prosthetic foot is included in one embodiment.
摘要:
A transformable balcony table capable of attachment to a balcony rail includes a primary table assembly including a table top having a rear edge and a pair of side edges extending forwardly from the rear edge so as to form an apex opposite the rear edge The primary table assembly includes a mounting portion extending downwardly from the rear edge of the table top and defining a plurality of holes. A first stability member having a proximal end is removably coupled to the bottom surface and extends downwardly and rearwardly to a distal end. A fastener is selectively inserted through the slots of the mounting portion for coupling the mounting portion to the balcony rail. The balcony table includes a first and second leaf selectively coupled to respective side edges of the table top, the leaves transforming the table from two eating places to four.
摘要:
A power module is disclosed that includes a housing with an interior chamber wherein multiple switch modules are mounted within the interior chamber. The switch modules comprise multiple transistors and diodes that are interconnected to facilitate switching power to a load. In one embodiment, at least one of the switch modules supports a current density of at least 10 amperes per cm2.
摘要:
A robot drive system preferably used for a vessel hull cleaning and/or inspection robot includes a first frame portion rotatably supporting a first axle with a first wheel thereon, and a second frame portion rotatably supporting a second axle with a second wheel thereon. A joint connects the first frame portion to the second frame portion and defines an expendable and contractible portion between the first frame portion and second frame portion. An actuator subsystem is configured expand and contract the expandable and contractible portion to move the first frame portion relative to the second frame portion at the joint to angle the first axle relative to the second axle to steer the robot.