Research/Patents/US 5355763
US 5355763

PROPELLANT CASTING APPARATUS

Assignee

ATLANTIC RESEARCH CORPORATION, A CORP. OF DE

Filed

Sep 14, 1989

Granted

Oct 18, 1994

Location

MADISON VA US

Abstract

A propellant casting apparatus for automatically filling rocket propulsion motors with semi-solid propellant is characterized by a unique propellant filling assembly which injects a precise given quantity of propellant into the motor from the bottom. The propellant filling assembly includes a chamber having an injection cylinder arranged at one end and a fill valve at the other. With the chamber filled with propellant, the fill valve is brought into engagement with the bottom of the motor and opened. The injection cylinder includes a piston which is extended into the chamber to inject propellant into the motor via the valve. The length of travel of the piston is accurately controlled to govern the precise quantity of propellant injected into the motor.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Sep 18, 1990

Rescinded

May 26, 1993

Duration

2 years, 8 months

Inventor

  • 1RICHARD N. FRANKLIN

Technology Domains

Click a domain to browse all patents in this category.

Back to patent indexSource: USPTO 35 USC §181 secrecy order records