Jack G Ohringer

US Patent:

41299060, Dec 19, 1978

Filed:

Nov 28, 1973

Appl. No.:

5/419559

Inventors:

Jack G. Ohringer - San Francisco CA

International Classification:

E03D 904

US Classification:

4211

Abstract:

A normally closed sewage venting system comprising at least one or more plumbing fixtures having associated traps and drain lines that empty into a main drain that is connected to a sewer main. The main drain is normally directly vented to atmosphere by a plumbing vent. In accordance with the present invention each plumbing vent is capped off with a breather valve. The breather valve is a slit diaphragm valve that readily permits air to enter the system, to prevent syphoning from the traps, and prevents the escape of gases from the system except under predetermined excessive pressure conditions. Therefore, the gases previously emitted to the atmosphere are now drawn, with the drainage, into the sewer main. The sewer main may be subjected to a slight negative pressure which draws the sewer gases off and into a gas separation and storage facility where the noxious gases can be neutralized and the burnable gases processed and stored.

US Patent:

39644669, Jun 22, 1976

Filed:

Mar 31, 1975

Appl. No.:

5/563910

Inventors:

Jack G. Ohringer - Vallejo CA

International Classification:

F24H 100

US Classification:

126361

Abstract:

A parallel water heating system having a plurality of water heaters supplying heated water to a plurality of water consuming loads. The water consuming outlet conduit from each of the water heaters includes a temperature responsive control valve that controls the flow rate of hot water from that particular heater to the various parallel connected loads. Each of these control valves is selected to be fully open when the water temperature is above an upper predetermined value and fully closed when below a lower predetermined value. Between the upper and lower predetermined values the valve preferably varies from fully open to fully closed by an amount that is about linearly proportional to the decrease in temperature.