Strain actuated hydraulic holdback bar

Details Strain actuated hydraulic holdback bar Strain actuated hydraulic holdback bar

1977-09-15

1978-07-18

Kelmachter, Barry L.

Aeronautics and astronautics

Aircraft propulsion

Launching

403 31, B64F 106, B64F 112

Patent

active

041010981

ABSTRACT:
A holdback bar for temporarily restraining an aircraft against the combined orces of engine thrust and catapult force prior to a catapult assisted launch of the aircraft which utilizes strain of a mechanical component to measure the level of combined forces. Housing stretch beyond a pre-determined amount actuates a floating trigger rod to lift a valve from its seat and permit escape of hydraulic fluid from a pressure chamber. The holdback bar includes a compensator for absorbing fluid volume changes caused by thermal expansion or contraction of the hydraulic fluid, and a rupture disk for limiting the pressure obtainable within the hydraulic fluid pressure chamber.

REFERENCES:
patent: 2432508 (1947-12-01), Cotton
patent: 2444919 (1948-07-01), Cotton et al.
patent: 2449554 (1948-09-01), Helber et al.
patent: 2727291 (1955-12-01), Hamblin
patent: 2728538 (1955-12-01), Mazis
patent: 2777650 (1957-01-01), Fosness et al.
patent: 2783004 (1957-02-01), Fieux
patent: 3062485 (1962-11-01), Hartel
patent: 3370811 (1968-02-01), Boody
patent: 3437291 (1969-04-01), Bochman
patent: 3578273 (1971-05-01), Mulgrave
patent: 3602461 (1971-08-01), Cody et al.
patent: 3738693 (1973-06-01), Loustalet
patent: 3813065 (1974-05-01), Hallesy et al.
patent: 3945235 (1976-03-01), Oxlade et al.

Affiliated with

Also associated with

Rating

Strain actuated hydraulic holdback bar does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Strain actuated hydraulic holdback bar, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Strain actuated hydraulic holdback bar will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-335001