John P Nordhaus

40647510, Dec 27, 1977

Oct 18, 1976

5/733182

Norbert F. Deisenroth - Des Plaines IL
John P. Nordhaus - Northbrook IL
Abe Siegelman - Morton Grove IL

Elematic Instrument Corporation - Morton Grove IL

G01F 140

73207

The following specification describes a flowmeter in which a tube secured to a biased bellows for movement therewith receives a rod to define a passage having a small radial dimension relative the length of rod received in the tube. The passage provides a pressure drop, which varies linearly with flow rate and moves the bellows and tube to a position corresponding to the flow rate. An indicator rod extends from the tube through a wall of the meter housing to provide an indication of the bellows position and therefore the flow rate.

48582441, Aug 15, 1989

Mar 24, 1988

7/173116

John P. Nordhaus - Northbrook IL

Scot, Incorporated - Downers Grove IL

H01S 3091

372 77

A laser type initiator device for activating air crew emergency escape systems and the like comprising a housing having a generally cylindrical chamber and defining a trough opening at one end of same, with the chamber and opening being coaxially oriented, a laser rod extending centrally of the chamber and frictionally retained in the housing through opening and equipped for optical pumping for directing a laser beam through the housing through opening, as into a fiber optic cable that is releasably secured to the housing in alignment with the trough opening, a flash bulb assembly received about the laser rod including a pyrex glass tube that receives and protects the laser rod and a plurality of percussion type flash bulbs received about the tube, which flash bulbs are disposed to have their primed ends all positioned crosswise of a common plane that is transverse of the axis of the laser rod, a striker assembly mounted adjacent the primed ends of the flash bulbs and having for each of the flash bulb primed ends a separate resilient swing arm that acts in the indicated transverse plane for resiliently striking the respective flash bulb primed ends to ignite the flash bulbs, an actuator assembly received over the stroker assembly and mounted for movement axially of the laser rod and including a camming arrangement for stroking the respective swing arms to resiliently stress same rotationally of the laser rod axis in one direction of movement of the actuator assembly, and an actuator assembly movement inducing device for effecting a rotatably connected purchase on the actuator assembly for moving to in effect cock the respective swing arms for striking of the respective flash bulbs on release of the actuator assembly movement inducer.

49645951, Oct 23, 1990

Mar 28, 1989

7/329663

John P. Nordhaus - Northbrook IL

Scot, Inc.

B64D 108

2441374

An all ballistic gas actuated ejector arrangement for aircraft store racks that are carried by military type aircraft and the like for releasably attaching to the aircraft stores, such as conventional or nuclear weapons, in which the ejector arrangement is duplicated in mirror image form at the usual fore and aft positions of the rack, with each ejector arrangment being in the form of an elongated housing with which the usual fore and aft sway braces are respectively integral, which ejector housing internally defines an elongate internal chamber in which are slidably mounted, in substantially telescoping coaxial relation with the housing, an outer piston and an inner piston, that in the dormant relation of the ejector are disposed within the ejector housing with like ends of same adjacent the open end of the ejector housing, with the rack ballistic gas being supplied to the other end of the housing, and the ejector outer piston having a ballistic gas receiving chamber and a valve arrangement for entrapping the gas therein for serving to both apply outward thrust to the store through the inner piston while providing cushioning for the inner piston thrust force that is applied to the store, when the ejector is ballistic gas actuated to thrust the store beyond the aircraft's air stream envelope.

48505536, Jul 25, 1989

Mar 16, 1987

7/026039

Earl K. Takata - Arlington Heights IL
Ben E. Paul - Costa Mesa CA
John P. Nordhaus - Northbrook IL

Scot, Incorporated - Downers Grove IL

B64D 102

2441374

An ejector arrangement for aircraft store racks that are carried by military type aircraft and the like for releasably attaching to the aircraft stores such as conventional or nuclear weapons, in which the ejector arrangement is duplicated in mirror image form at the usual fore and aft positions of the rack, with each ejector arrangement being in the form of an elongated housing with which the usual fore and aft sway braces are respectively integral, which ejector housing internally defines an elongate internal chamber in which are mounted an outer cylinder and inner cylinder that in the dormant relation of the ejector are in substantially telescoped coaxial relation with like ends of same disposed adjacent one end of the housing to which the rack ballistic gas is supplied, with the ejector cylinders at their other ends being exposed externally of the other end of the housing and keyed for sequential movement to their extended relations under the action of the ballistic gas involved, to thrust the store which at the same time has been released from the aircraft, beyond the aircraft's air stream envelope; the inner and outer cylinders of the rack ejectors, in moving from the ejector dormant relation to the ejector extended relation, act under the ballistic gas pressure released within the respective rack ejectors, to apply to the store the needed unbalanced force, and in a more or less uniform, sequential manner, to effect application to the store of maximized release thrust during the thrust stroke of the rack ejectors.