JULIUS LERNER
Engineers in Delaware

4073304, Feb 14, 1978

Jul 12, 1976

5/704204

Julius Lerner - Broomall PA
Edmundo J. Iglesias - Lindwood PA

Suntech, Inc. - Wayne PA

G01F 2500, G05D 1102

13710121

A system for calibrating the flow rate of a pump, and especially designed for a pump which is normally used in a system to blend highly vaporous and odorous fluids, in which the blending fluid discharged from the pump is diverted from its normal flow stream into a closed calibration system which has a sight glass for receiving the fluid discharged by the pump. After a predetermined number of cycles by the pump, the amount of fluid within the sight glass is determined and then the calibration system is purged by a displacement gas so that the offensive material is returned back to its original source to be reused in its normal fashion.

4007755, Feb 15, 1977

Mar 6, 1975

5/556026

Julius Lerner - Broomall PA
Robert Mayer - Ardmore PA

Sun Oil Company of Pennsylvania - Philadelphia PA

G05D 1113

13710121

A system for injecting a predetermined amount of additive fluid into a main stream of fluid which controls the amount of additive injected by a timing circuit. A pump continuously circulates the additive through a circuitous path having a valve which diverts the additive into the main stream. A control system receives signals from a turbine meter in the main stream and opens the valve a predetermined length of time at a frequency depending on the signals received from the turbine meter, thereby maintaining a constant concentration of the additive in the main stream.

3997886, Dec 14, 1976

Sep 26, 1975

5/616985

Julius Lerner - Broomall PA

Sun Oil Company of Pennsylvania - Philadelphia PA

G08B 2100, B03C 130, H01H 3500

340236

A system for detecting the presence of a contaminating fluid in other, normal fluids. In one embodiment the system detects the presence of hydrocarbons in a liquid which is normally water. A barrier which is soluble in hydrocarbons but insoluble in water has one side in contact with the liquid. A liquid sensitive switch is positioned on the other side of the barrier. If hydrocarbons are present, they will dissolve the barrier and close the switch which will set off an alarm. In a second embodiment wherein water is the possible contaminant in hydrocarbons, a barrier which is soluble in water but insoluble in hydrocarbons is utilized.

3974695, Aug 17, 1976

Aug 18, 1975

5/605779

Julius Lerner - Broomall PA

Sun Oil Company of Pennsylvania - Philadelphia PA

G01F 2310, G01F 2326

73304C

In an environment having two or more immiscible liquids wherein a first liquid floats on top of the second liquid, a gauging system which senses the depth of the first liquid which is floating on top of the second liquid. A float holding a capacitance probe which passes through the entire depth of the first liquid maintains the probe at the free surface level at all times. A cable wrapped around a drum and connected to the float is used for determining the free surface liquid level.

3941148, Mar 2, 1976

Apr 17, 1975

5/568966

Julius Lerner - Broomall PA

Sun Oil Company of Pennsylvania - Philadelphia PA

F16K 1720

137486

A system for controlling a pneumatic rising stem valve by a stepping motor is disclosed. A pressure regulator is connected to the stepping motor so that the air pressure applied to the valve can be varied according to the signals applied to the stepping motor.