Abstract: A dermatological treatment method includes directing laser energy having a wavelength of 2.79 ?m onto skin. According to disclosed methods, the energy can function to ablate a first portion of epidermal tissue, coagulate an underlying second portion of epidermal tissue, and promote collagen formation in tissue of the underlying dermis. Tn an exemplary treatment apparatus, a laser using a YSGG gain medium is mounted in a handpiece. The handpiece may include a two-axis scanner to allow for uniform scanning of the energy over the tissue surface.

Abstract: A flashlamp device having a small diameter waveguide is disclosed for use in localized dermatological applications. A preferred waveguide has a curvilinear wall surface. The waveguide is supported by a plurality of spaced apart thermally-conductive elements in contact with the curvilinear wall surface allowing sufficient cooling of the waveguide while minimizing the amount of high angle light stripped from the waveguide at points of contact with the contact elements.

Abstract: A system, apparatus, and method may provide laser beams of two or more wavelengths from diode pumped solid-state laser sources (220, 222, 224). The beam paths of these laser beams with different wavelengths, which are generated by the laser sources (220, 222, 224), may be aligned along a common optical axis 280 by an optical configuration, to treat at least one target area. Frequency-doubled laser beams, output from a plurality of diode pumped solid state laser cavities, may be passed through fold mirrors (M2, M5, M8), and combined on a common optical axis 280, using one or more combiner mirrors (M10, M11, M12), to unify the beam paths. Selected laser beams may be delivered to a target using one or more delivery systems.

Abstract: A air selection control valve and assembly capable of controlling the flow of air into a water conduit to accelerate, decelerate, or pulse the rate of water flowing in combination with a hot tub spa assembly is described. This invention makes use of the control of the air inlet to control the pulsing of water. This invention also describes an innovative multi-way control valve system that can be controlled by as few as a single solenoid for pulsing some or all of the jets of a standard hot tub spa.

Abstract: A flow switch for a high pressure washing system or other flow-related system is disclosed. The flow switch switches from an open to a closed position in the presence of adequate flow in a water or other fluid-carrying pipe. The flow switch includes a housing with a tubular bore, an inlet port and an outlet port which allow fluid to flow through the housing. Within the housing is a plunger with an attached plunger magnet. The plunger is responsive to fluid flow. A sensor is situated proximate to the housing. A sensor magnet is placed in position near the sensor and opposes the plunger magnet. A third magnet (the alignment magnet) is placed proximate to the housing. When there is no flow within the housing, the plunger is at its rest position as the alignment magnet attracts the plunger magnet to correctly align and position the plunger within the housing.

Abstract: A flow switch for a high pressure washing system or other flow-related system is disclosed. The flow switch switches from an open to a closed position in the presence of adequate flow in a water or other fluid-carrying pipe. The flow switch includes a housing with an inlet port and an outlet port which allows fluid to flow through the housing. Within the housing is a plunger with an attached magnet. The plunger is responsive to fluid flow. A retainer ensures that the plunger remains within the housing. A sensor is situated proximate to the housing. A sensor magnet is placed in position near the sensor and opposes the plunger magnet. When there is no flow within the housing, the plunger is at its rest position as it is repelled by the sensor magnet. When a threshold rate of flow is present, the pressure from the flow overcomes the repellant force of the magnets and the plunger is moved to its secondary position. In this position, the plunger magnet trips the sensor.

Abstract: A recirculation shield and engine fan shroud assembly. The apparatus includes a shroud assembly mounted to the radiator. The shroud is configured so as to conform with and seal the interior of the engine compartment around the radiator such that substantially all the air entering the engine compartment is of ambient temperature free from recirculation of hot fan discharge airflow.