Northrop Grumman Systems Corporation

Ralph Edward Jaffke

Glen Silva Abad

Jorge Arthur Millan

William T Mead

Christopher H Husmann

Joanne Swiderski McLaughlin

James E Kirby

Stanley Bean

Rick A Osterman

Brian McDonnell

Thomas William Jaeger

Rick Osterman

A self-adjusting masking plug is provided which is adapted to be received in a region of a complex part intended to be masked. The plug has a body adapted to be received within a region of the part intended to be masked. The body includes a first body half having at least one first perimeter wall conforming to a first portion of the intended region to be masked; a second body half having at least one second perimeter wall conforming to a second portion of the intended region to be masked; and a wishbone spring formed internally within the body such that it interconnects the first and second body halves. The wishbone spring includes a first half inner wall transversely spanning and interconnecting portions of the at least one first perimeter wall; a second half inner wall transversely spanning and interconnecting portions of the at least one second perimeter wall; and a common rib interconnecting the first and second inner walls. The plug is adapted to expand or compress depending on the tolerances of the part within the part.

Self-adjusting masking plug for complex parts

The invention is a method of monitoring a filter for absorbing paint particles produced during spray painting with a spray gun in a paint spray booth coupled to an exhaust pump, the method includes the steps of: 1) installing a filter between the booth and exhaust pump; 2) determining the initial pressure drop across a filter prior to use of the spray booth; 3) determining the maximum allowable pressure drop for the filter prior to the requirement that spraying activities must be terminated by adding the initial pressure drop of the filter to the maximum allowable increase in pressure drop across the filter before the of spraying activities must be terminated; 4) providing a warning when a first portion of the maximum allowable pressure drop is reached; and 5) preventing the use of the spray gun when a second portion, greater than the first portion, of the maximum allowable pressure drop is reached.

Method of monitoring a filter system for a paint spray booth

The invention is a coating applicator assembly for coating a structure. In detail the invention is a spring-loaded a syringe having an outlet port. A semi-flexible tube having first and second ends is coupled by its first end to the outlet port of the syringe. A coating applicator for applying the coating material to the structure in the form of brush or contoured foam.

Touch-up coating applicator assembly for remote locations

A portable flushing apparatus for cleaning the interior of a gas distribution tube. The apparatus includes a first reservoir structure housing a first solvent an a first conduit leading therefrom for selectively transporting solvent to the interior of the tube to be cleaned. A second reservoir structure houses a second solvent generally employed in a final cleaning flush, and has a second conduit leading therefrom for selectively transporting solvent to the interior of the tube. A gas supply conduit is included for selectively transporting purging gas to the interior of the tube. A downstream conduit collects or for releases for testing fluid from the tube. The entire apparatus can include a wheeled carrier. A liquid collector can be situated beneath the gas distribution tube for capturing any spilled solvent

Portable cleaning apparatus for gas distribution tube

In accordance with the present invention, there is provided portable fluid application and rinse apparatus for applying a first fluid and for rinsing with a second fluid. A first storage reservoir retains the first fluid and has an outlet. A first application conduit communicates with the outlet of the first storage reservoir. The first application conduit receives the first fluid from the outlet of the first storage reservoir and dispenses the first fluid therethrough. A first drain pan receives the first fluid. A second storage reservoir retains the second fluid and has an inlet and an outlet. A second application conduit communicates with the outlet of the second storage reservoir. The second application conduit receives the second fluid from the outlet of the second storage reservoir and dispenses the second fluid therethrough. A concentration measuring device measures the concentration of the second fluid. A second drain pan receives the second fluid and has a discharge port which communicates with the inlet of the second storage reservoir.

Fluid application and concentration monitoring system

An aerosol can puncturing machine comprising a lower housing section which is adapted to receive at least a portion of an aerosol can, and an upper housing section which is removably attachable to the lower housing section. The upper and lower housing sections fully encase the aerosol can when attached to each other. Connected to the lower housing section is a locking mechanism which is movable between an unlocked position wherein the upper housing section is detachable from the lower housing section, and a locked position wherein the upper housing section is maintained in locked engagement to the lower housing section. Also connected to the lower housing section is a puncturing mechanism which is operable to selectively puncture the aerosol can encased within the attached upper and lower housing sections.

Growing community of inventors

Lakewood, CA, United States of America

Ralph Edward Jaffke