Canadian Patents & Development Ltd.

Other

Rock S Lee

Richard M Cheng

Atef E Fahim

Jack Friedman

Abraham Boyarsky

Athanasios Christodoulopoulos

A drive means for a photographic film developing tank and a developing tank for use therewith, including magnetic coupling means connecting an agitator in the tank with the reciprocating-type drive means, such as a rack and pinion, and an electric motor.

Automatic stirring system for film developing

An adapter device for securement to an output rotary drive of a drill. The adapter comprises a housing having an input connector securable to the rotary drive, and an output connector. A fixed mode cam is immovably secured with respect to the housing. A displaceable floating cam is provided intermediate the input connector and a displaceable keying element. The floating cam is displaceable in and out of engagement with the input keying element. An adjusting assembly is provided to displace the keying element in and out of engagement with the fixed mode cam and the floating cam whereby the input connector can impart a rotary drive, rotary drive and impact forces or impact forces only to the output connector.

Hammer drill adapter

The breathing cycle of a patient is controlled to achieve proper ventilation and at the same time minimize the work of distension of the lungs. Oxygen enriched air is delivered to the patient during the inspiration period such that the pressure waveform is a ramp function having initial and final values which are dependent on the resistance, compliance and alveolar volume of the lungs. The apparatus includes a source of oxygen enriched air at a regulated pressure and a pneumatically controlled pressure reducing valve for reducing the pressure of the oxygen enriched air for delivery to the patient. The valve is controlled by a transducer which converts an electrical control signal into a pneumatic control signal. The electrical control signal which is generated by an electronic control circuit, is a function of the parameters of the patient's lungs.

Growing community of inventors

St. Hubert, Canada

Rock S Lee