Unico Corp.

Mcdonnell Douglas Corporation

Craig S Messmer

Glenn A Anderson

Joseph F Intagliata

Seden Kalyoncu

Henry Philip DeLima

Josh J Riley

Richard Eason

An air distribution blower housing has an adjustable restriction in the interior of the blower housing. The adjustable restriction has the configuration of a rectangular plate. One edge of the plate is connected by a pivoting connection to an interior wall of the blower housing in the air flow path from the blower housing. The plate can be pivoted about the pivot connection through a plurality of adjusted angular positions of the plate in the air flow path. In each adjusted position of the plate, the length of the plate extends from the pivot connection in the air flow direction. A sliding connection is provided between the plate and at least one side wall of the blower housing. The sliding connection selectively holds the plate in its adjusted angular position and also provides a visual indication on the exterior of the blower housing of the adjusted angular position of the plate inside the blower housing.

Air distribution blower housing with adjustable restriction

A heating and air conditioning apparatus has an enclosure that defines an interior volume containing a compressor, a condenser coil, an expansion valve, an evaporator coil, a hot water coil, an evaporator fan, and a condenser fan. The compressor, the condenser coil, the expansion valve, and the evaporator coil are in communication with each other. The enclosure also has first and second input air openings and first and second output air openings. The evaporator fan draws air through the first input air opening and then through the evaporator coil and the hot water coil, and thereafter forces such air out of the enclosure through the first air outlet opening. The condenser fan draws air through the second input air opening and then through the condenser coil, and thereafter forces such air out of the enclosure through the second air outlet opening.

Packaged small-duct, high-velocity air conditioner and heat pump apparatus

A fire stop apparatus for a small duct, high velocity air distribution system is assembled to a duct opening and includes a cylindrical support wall that supports a cylindrical band of intumescent material that expands and closes the duct opening when subjected to the heat of a fire.

Fire stop outlet for small duct, high velocity air distribution systems

A method is provided for sizing an environmental control system for controlling a temperature of a target. The method comprises the steps of: identifying the target that is to be temperature controlled by the environmental control system; selecting a desired temperature of the target that is to be temperature controlled; and determining optimal characteristics of the environmental control system. Preferably, the step of determining optimal characteristics of the environmental control system includes referring to a nomograph that charts numerical relationships of a plurality of variables. Preferably, variables charted on the nomograph include a temperature of discharge air that is to be discharged from the environmental control system, a temperature of ambient air surrounding the target, a distance between a discharge portion of the environmental control system and the target, and a volumetric flow rate of the discharge air.

Method and apparatus for sizing an environmental control system

A vent structure comprises an inlet-connector section, an outlet section, and a transition section between the inlet-connector section and outlet section. The inlet-connector section is at an inlet end of the vent structure and is adapted for connection with an inlet duct from which the vent structure receives a flow of air. The outlet section is at an outlet end of the vent structure and includes an outlet slot that is adapted to direct the flow of air into a room. The transition section has a flared portion that diverges in cross-sectional area as it extends generally toward the outlet section. The transition section has a constricted portion located between the inlet-connector section and the outlet slot. The constricted portion is also located substantially centrally within a plane that is generally perpendicular to a direction of air flow. The constricted portion is adapted to restrict the flow of air through a central portion of the transition section, thereby restricting the flow of air exiting a corresponding central portion of the outlet slot to provide a more uniform velocity profile of exiting air.

Vent structure for slotted outlet with uniform velocity profile

A vent structure with a slotted rectangular outlet includes a cylindrical connector section to mate with a cylindrical duct, a flared and curved transition section, and a rectangular outlet section. The structure is formed in such a manner that turbulence is minimized in air flowing through the structure to thereby lessen the generation of airflow noise. The structure is sized and shaped to fit within a stud wall formed by conventionally sized studs positioned at a typical spacing. The structure includes a mounting plate with a mounting channel to receive an extendible mounting bracket, the ends of which are fastened to studs between which the structure is mounted.

Vent structure with slotted rectangular outlet

There is provided by this invention a method and an apparatus for cooling a heat load that is operable in zero gravity conditions and while in any orientation due to the design of the apparatus. The apparatus' components are also selected so as to comprise a lightweight refrigeration system. The apparatus utilizes direct contact between two fluids, a liquid coolant and a refrigerant, with widely different vapor pressures so that one fluid, the coolant, always remains a liquid in the system. The two fluids may be totally or partially soluble in one another or they may be totally insoluble in one another with the degree of solubility affecting the system's efficiency, but not its reliable operation. The refrigerant, which boils and condenses during the refrigeration cycle, is mixed with the coolant and condensed prior to the portion of the system's cycle in which the heat is rejected to a heat sink and is subsequently separated from the coolant. Furthermore, the coolant in the system, which absorbs heat from the load and subsequently mixes with the refrigerant, remains a liquid throughout the system's cycle so as to provide lubrication for the system's components without the use of an additional refrigerant oil.

Growing community of inventors

St. Louis, MO, United States of America

Craig S Messmer