摘要:
A skateboard includes a motorized drive assembly and a motorized brake assembly, both operable with a wireless remote control to be carried by a rider. The drive assembly is free-wheeling permitting normal use of the skateboard in the event of battery depletion. The brake system includes a motor operable through a simple machine structure to move a brake pad against a brake disk mounted against a wheel. A self-adjustment mechanism presets the brake pad a predetermined distance from the disk prior to brake application. Motor enertia is relied on to store potential energy in a wheel axel in accordance with an associated method of operation.
摘要:
A cooker has a pan of circular configuration with an open upper end receiving a circular lid and a bottom having apertures therein. A disk shaped drip tray disposed below the pan and having upstanding lugs thereon is selectively moved between raised and lowered positions using opposite latching mechanisms which adjustably couple the drip tray to the pan. In the raised position, the drip tray engages the bottom of the pan and the lugs on the drip tray extend into and close the apertures in the pan. In the lowered position, the lugs are removed from the apertures, permitting greases, fats and similar substances to drain through the apertures and onto the drip tray. The latching mechanisms permit separation of the drip tray from the pan for separate cleansing thereof such as by placing in a dishwasher. When food cooked in the pan is ready to be served, the pan and attached drip tray are placed within an opening in a circular serving tray which has removable trays positioned about the circumference thereof for holding food items such as toppings for the food cooked in the pan. An electrical heating element embedded within the bottom of the pan provides heat for cooking.
摘要:
An introducer for use with an ultrasonic imaging system. The introducer comprises a tubular member having a connecting end, a positioning end, and a central lumen, the connecting end including a coupling for attaching the introducer to an ultrasonic imaging system, and the positioning end comprising a plug or other structure that facilitates positioning of the introducer inside a urethra at a fixed anatomical landmark.
摘要:
An automated brush cleaning and drying apparatus includes a housing, a cleaning solution bottle coupled to the housing and a spray nozzle, a fan coupled to the housing, a support frame assembly disposed within the housing, a rotation mechanism assembly coupled to the support frame assembly and having a rotatable claw designed to engage with the brush's end tip, and a height adjustment mechanism assembly operably coupled to the support frame assembly within the housing. The height adjustment mechanism assembly adjusts the height of the support frame assembly to a first position to permit the rotation mechanism assembly to drive the rotatable claw to rotate the brush as the spray nozzle disperses the cleaning solution from the bottle to the brush's bristles. The height adjustment mechanism assembly adjusts the height of the support frame assembly to a second position to align the brush's bristles with the fan.
摘要:
An ultrasound scanning system and methods of using the same. In one preferred form, an ultrasound scanning system comprises an acoustic imaging catheter comprising an ultrasonic transducer, a motion control system and an imaging computer system for imaging a patient's genitourinary system. In another preferred form, an ultrasound scanning system is used for imaging a patient's prostate gland.
摘要:
A barbecue apparatus is provided, the apparatus comprises: a firebowl having an open topside and a bottomside which has a circumference smaller than a circumference of the topside of the firebowl, and the bottomside of the firebowl comprises at least one central aperture situated adjacent at least one peripheral aperture; a base frame comprising a top end, a bottom end, and a central cavity, and the peripheral aperture of the firebowl leads to the central cavity of the column, and the top end of the column is connected to the bottomside of the firebowl; and an ash scraper assembly comprising a frame having at least one arm designed to cover and uncover the peripheral aperture and an actuator pivotally attached to the frame and designed to rotate the arms to cover and uncover the peripheral apertures and scrape the bottomside of the firebowl.
摘要:
A curve projected onto a NURBS surface defines trim regions on the NURBS surface. A plurality of spaced-apart points are defined on the curve and rays are project through the points toward a NURBS surface. Any intersections of the rays with the NURBS surface is mapped into the U,V domain. Corresponding points of adjacent rays are connected to define at least a portion of each trim region on the NURBS surface. Transitions on the NURBS surface between adjacent rays are detected based upon differences in the number of intersections of adjacent rays. The location of each transition is determined to within a selected tolerance by using a binary subdivision of the interval between adjacent rays. The location of such transitions is used to determine how intersections of the rays with the surface at the boundaries of the NURBS surface should be connected. Parity assigned to the rays at each intersection determines the direction in which intersections along the rays are connected. The technique enables real-time trimming of the NURBS surface to be carried out in response to any change to the curve and/or NURBS surface topology.
摘要:
A connection system for connecting flow interface equipment to a subsea manifold is disclosed. The connection system relates particularly to a connection apparatus adapted to land a conduit means on a subsea manifold in a first stage of the connection and to connect a conduit means of the connection apparatus to a choke body of the manifold in a second stage of the connection.