A mounting device for supporting a rigid projection screen, constructed of low to medium density polyethylene or polypropylene and attachable to the back of said screen comprising a pair of spaced mounting blocks attachable to the back of the screen and a hinge pin journalled in said mounting blocks with an interference fit which resists relative rotative movement between the mounting blocks and the hinge pin and a wall bracket having one end fastened to the hinge pin and the opposite end attach...

A double pouch is described in which a smaller pouch is located within a larger pouch. The larger pouch can be used to accommodate a patient's leg or other appendage during a surgical procedure while the smaller pouch can be used to retain irrigation fluids and surgical debris. In the preferred embodiment, the smaller pouch can be moved to the outside of the larger pouch when the larger pouch is not intended to be used. In one embodiment, the pouches can be attached to a main drape having a fene...

A movable contact for a synchronous circuit breaker has a chamber which has an opening through an orifice contained within the contacting region of the interrupter contact. The interrupter contact is a part of a synchronous circuit breaker system in which blast gas flows through the arc for a relatively short time. The closed chamber in the movable contact permits axial flow of gas in two directions, both into the contact cavity and away from the movable contact, so that gas flow through the arc...

The described invention concerns apparatus for gently and continuously agitating the contents of one or more elongated containers such as sampling phials, which consists of a number of cylindrical rollers borne by a base structure and positively driven for rotation all in the same sense of direction on rotation axes which are parallel, the cylindrical axis of each roller being inclined to its rotation axis, so that a container placed in supporting contact with any two adjacent rollers is rotated...

Apparatus for disinfection of drinking water where the water is stored in a tank or other container from which it is dispensed. The invention is characterized by use of a porous ceramic body having metallic silver dispersed within the same and which is immersed in the water. Silver ion is released from the absorbed liquid of the body at a controlled level of concentration to inhibit the growth of organisms.

A reflector that reflects a microwave signal as a function of temperature is implanted within living tissue of a human. A microwave signal is transmitted to the reflector via an applicator in contact with the skin of the human. A portion of the signal reflected from the reflector is coupled via the applicator to a meter that provides an indication of the temperature of the reflector.

Strainer Apparatus for mounting within a tube, the apparatus comprising a strainer element having a cylindrical body portion and a conical end portion and a retainer having two concentric spaced cylindrical surfaces between which the strainer element is fastened, and a resilient collar containing a multiplicity of openings, said collar having an outside diameter greater than the internal diameter of the tube whereby upon insertion into the tube the collar is compressed forming a tight fit with t...

Apparatus for forming one or more sheets from a dilute suspension of fibers in a liquid has a Fourdrinier wire the upper reach of which travels above a foraminous support, and a head box which has an outlet discharging the suspension onto the upstream portion of the upper reach. The liquid passes through the wire and support, and the fibers form a mat which is carried and advanced by the upper reach of the wire. The apparatus has several deckles which are impervious to liquid and are mounted in ...

Means for marking points within the terrain include an anchoring element and a marking element secured thereto, said marking element being a horizontally disposed disc having a plurality of flap-like protrusions extending radially from the axis of said disc, the disc and protrusions having marking indicia thereon.

A process for growing plants within a solar-heated enclosure through the use of a pool of water upon which containers are floated and moved beneath a light source. The pool of water provides support for the plants, facilitates their movement, and provides thermal mass for storage of solar heat.