Daniel S Morrison

US Patent:

48960527, Jan 23, 1990

Filed:

Mar 24, 1988

Appl. No.:

7/173480

Inventors:

Daniel R. Morrison - Key Biscayne FL
William C. Pickell - Key Biscayne FL
William S. Massey - Silver Spring MD

Assignee:

Liquid Management Systems, Inc. - Key Biscayne FL

International Classification:

F25B 100
F25B 4900

US Classification:

307118

Abstract:

A system to be used in combination with an air conditioning assembly and designed and structured for the detection of collected condensation at a predetermined level within a collection facility associated therewith and prior to actual over flow and also the detection of any leakage from any of the collection facilities or various plumbing components throughout the air conditioning system such that the detection of either excess collected condensation or leakage serves to shut-down the air conditioning assembly. The subject system may also be structured to restart the air conditioning assembly automatically once a level of collected condensation has receded or any leakage has been alleviated.

US Patent:

46336737, Jan 6, 1987

Filed:

Aug 28, 1985

Appl. No.:

6/770411

Inventors:

Daniel R. Morrison - Key Biscayne FL
Ross J. Petrie - Ft. Lauderdale FL
Kenneth D. Savage - Key Biscayne FL

International Classification:

F25D 2100

US Classification:

62129

Abstract:

An object of this invention is to provide an emergency drain for units such as air conditioners and the like, operative to collect fluid and shut off the unit when the primary drain for the unit becomes obstructed, thus protecting against damage due to overflow of the fluid, and wherein a low pressure is produced in the drain for evacuating fluid from the drain pan of the unit. Another object is to provide a one-way valve in the drain from an air conditioner or other appliance, whereby reverse flow of air or other fluid from the drain to the unit is prevented. The emergency drain comprises a fitting (11) mounted in the drain pan (14), with a primary drain opening (16) and a secondary or emergency drain opening (17) for draining away fluid accumulated in the pan when the primary drain becomes blocked. A one-way valve (37) is provided in the drain for preventing back flow of air or other fluids from the drain to the pan, and a venturi (39) is positioned in the drain pan (14) to produce a low pressure from the flow of air circulated by the air conditioner fan. A tube (38) connects the venturi with a reservoir (22) which collects the fluid drained by the emergency drain (17), whereby the fluid is evacuated through the emergency drain.