摘要:
There is described a battery driven atomizer in which an alternating voltage is applied to a piezoelectric actuation element to cause it to expand and contract and vibrate an atomizing orifice plate. The alternating voltage is controlled to produce a high amplitude vibration during a first portion of a drive period, to initiate atomization, and thereafter to produce a lower amplitude vibration to sustain atomization during the remainder of the drive period. The frequency of the alternating voltage is swept repeatedly during each drive period.
摘要:
Disclosed herein is a piezoelectric liquid delivery system or atomizer for production of droplets of liquid or liquid suspensions by means of a battery operated atomizer utilizing an orifice plate in communication with a ceramic piezoelectric element. By use of solder joining to bond the orifice plate to the piezoelectric element, and subsequent repolarization of the piezoelectric element if necessary, superior results are achieved.
摘要:
A liquid atomizer is constructed with a hollow shell-like top cover and a unitary molded main support which snaps into place inside the top cover and divides it into upper and lower regions. The main support includes formations for mounting, on its upper side, a printed circuit board assembly including an electrical oscillator, as well as a piezoelectric actuator and orifice plate pump assembly. The main support also includes formations for removably mounting, on its lower side, a battery and a liquid reservoir. An openable bottom cover closes the bottom of the device and allows access to the battery and to the liquid reservoir for replacement of these elements.
摘要:
A compressor electrical component enclosure may include a base and a lid. The base may include first and second opposing surfaces and a magnet. The magnet may be coupled to the second surface and may secure the base to a compressor shell. The lid may engage the base and cooperate with the base to define an electrical component housing.
摘要:
A compressor electrical component enclosure may include a base and a lid. The base may include first and second opposing surfaces and a magnet. The magnet may be coupled to the second surface and may secure the base to a compressor shell. The lid may engage the base and cooperate with the base to define an electrical component housing.
摘要:
A pump (10) includes a motor (11) which rotates a pumping assembly (52) which includes a face plate (54) and a cylinder (56). A piston (67) reciprocates in the cylinder (56) to draw fluid into the cylinder (56) from an intake groove (78) and an intake port (76) formed in a manifold plate (73) positioned adjacent to the face plate (54), and to thereafter discharge that fluid to a discharge groove (80) and a discharge port (77) formed in the manifold plate (73). The piston (67) rides on a swash plate (49) as the face plate (54) rotates, and the extent of reciprocation of the piston (67) and therefore the amount of fluid to be dispersed on each reciprocation of the piston (67) is controlled by an adjuster wheel (40) which can be moved to allow the swash plate (49) to pivot a predetermined extent. As such, the pump (10) can dispense a known precise amount of fluid on each reciprocation of the piston (67).
摘要:
An improved surgical instrument is provided for applying surgical fasteners, such as staples, to human tissue which is particularly suited for applying one or more rows of fasteners across a tissue lumen. The surgical instrument can be used in thoracic and abdominal surgical procedures where access to the surgical site is restricted. The surgical instrument includes an articulated fastener applying assembly mounted on a rotatable and flexible support shaft assembly to provide more convenient access to restricted surgical sites. The fastener applying assembly has a compact construction including a fixed jaw which supports a fastener cartridge and a movable jaw which supports an anvil for clamping the tissue therebetween. The fastener applying assembly includes a pin placement mechanism which is actuated by the movable jaw to control the movement of a tissue retaining pin on the fixed jaw. A dual cam mechanism is provided for driving the fasteners into the tissue clamped between the anvil and the fastener cartridge. The instrument has an actuator handle assembly with an improved actuator mechanism for closing the jaws and driving the fasteners into the tissue.
摘要:
The wheeled exercise device described herein includes a wheel adapted to be rolled along a ground surface by a user for exercise, the wheel bounded by wheel side surfaces with a central opening in each wheel side surface, and an elongate central axle extending along a central horizontal axis through the wheel that is parallel to the ground surface. The device further includes a pair of elongate handles coupled to the central axle, each attached to an end of the axle at a corresponding central opening in a wheel side surface. Each handle further includes upper and lower elongate surfaces that are oriented at an angle to the central horizontal axis so that a substantial length portion thereof extends away from its corresponding wheel side surface and downward toward the ground surface with the wheel at rest or rotating thereon.
摘要:
A food chiller including an enclosed container supported on a base receives a flow of cooling air from a Peltier effect thermoelectric module in the base through cool air inlet openings into the container. Air is returned from the container to the base by a fan mounted in the air duct system in communication with the cold sink of the thermoelectric device. In each of the disclosed embodiments, duct length is minimized and air flow into the container is optimized by air hole placement and orientation.
摘要:
A spaced saving fruit chiller is adapted to be mounted under a covered or horizontal surface or placed in a corner on a counter. The interior of the container is cooled by a forced air flow utilizing a Peltier thermoelectric device, one wall of the container forming a wall of the air flow duct system and containing both the air inlet holes to the container and the air outlet holes from the container into the duct system.