Abstract: Foot and leg exercise apparatus includes a pair of pedals pivoting on a base element. At the front of the base is a vertical post and a tee element telescopes relative to the vertical post. The post and the element include aligned apertures for adjusting the height of the tee element relative to the post. A pin is inserted into the desired aligned apertures in the post and tee element at the desired height. Tension springs are secured to the tee element and to the pedals for moving the pedals upwardly. The user's feet are disposed on the pedals and the user's feet and legs are exercised by pivoting the pedals against the tension springs. By adjusting the height of the tee element, the force of the tension springs may be varied. Sets of tension springs of varying strength may be used progressively. For forced exercise, a motor and cams may be used to move the pedals downwardly against the upward biasing force of the tension springs.

Abstract: Nozzle spray apparatus includes a turbo chamber into which fluid flows and out of which fluid flows to a nozzle. The inlet and outlet apertures or orifices are misaligned from each other and the outlet orifice or aperture is larger than the inlet orifice or aperture, thus allowing the pressure in the chamber to decrease and allowing fluid droplets to form as they flow out of the chamber. The apparatus includes both selectable quantity and droplet size capabilities by means of a selector plate rotatable relative to a base and having a plurality of metering apertures and the turbo chamber in a nozzle holder plate. The nozzle holder plate is rotatable relative to the base and holds a plurality of nozzles, any of which may be aligned with a desired aperture in the selector plate.

Abstract: Multiple nozzle spray head apparatus includes a base element and a nozzle selector plate rotatably secured to the base element. Different nozzle tips may be secured to the nozzle selector plate for delivering different quantities of spray. The nozzle selector plate includes a blank portion which represents or defines an off position for the apparatus. The nozzle selector plate may be rotated as desired to align a delivery port on the base element with a desired nozzle tip. Different embodiments of nozzle selector plates are disclosed. The base element may be secured to a quick disconnect unit for ease of replacement. The base element may include a groove which matingly engages locking elements on the quick disconnect unit, if desired.

Abstract: Quick release nozzle apparatus includes a fixed nozzle housing and a removable nozzle assembly which may be secured to and removed from the fixed nozzle base without the use of tools and with just one hand. The nozzle assembly is locked to the fixed base through a spring bias which urges the nozzle assembly against a pair of locking tabs on the fixed nozzle base. Rotation of the nozzle assembly relative to the nozzle base aligns relieved portions with the lock tabs for removal and installation of the nozzle assembly and aligns a shoulder or face portion with the lock tabs for securing the elements together.

Abstract: Check valve apparatus for a fluid flow operates in response to a positive pressure of the fluid to move a spring biased diaphragm and valve element off its seat to allow the fluid to flow through the apparatus. When the pressure of the fluid flow drops, the valve is urged against its seat to provide a positive stop to the fluid flow. The valve apparatus includes a stem extending exteriorly of a housing in which the apparatus is disposed so that the valve may be manually opened by moving the valve off its seat to clear debris without contaminating the hands of the person working on the valve.

Abstract: Aerial spray nozzle is selectively adjustable for rate of delivery of the fluid to be sprayed and for droplet size of the sprayed fluid.

Abstract: Nozzle apparatus includes a head having a plurality of holes for sequential alignment with a delivery port and a cleanout hole also sequentially aligned with a delivery port, and a curved surface extends about the head for producing a fan-shaped spray when a hole is aligned with the delivery port and a fluid is pumped through the delivery port.