HANDLING MEANS FOR SLOT FORMERS

• US 3,756,025 A
• Filed: 07/14/1971
• Issued: 09/04/1973
• Est. Priority Date: 07/14/1971
• Status: Expired due to Term

• Current Assignee: Edward E. Mccullough
• Original Assignee: Edward E. Mccullough
• Inventors: McCullough, Edward E.
• Primary Examiner(s): Gordon, Clarence R.
• Assistant Examiner(s): Garrett, Robert E.
• Application Number:
  US05/162,543
• Time in Patent Office: 783 Days
• Field of Search: 60/39.47,253,255 52/125,126 102/102
• US Class Current: 60/255
• CPC Class Codes: F02K 9/10 Shape or structure of solid propellant charges

Abstract

In slot formers for solid propellant rocket grains, of the type wherein a disk of propellant is equipped with ribs on one side to provide a radially extending slot between forward and aft components of a solid propellant rocket grain, a rigid reinforcing frame embedded in the propellant disk is provided with loops that extend beyond the surface of the disk to serve as handling means therefore.

Claims

1. In a rocket motor having a case, a forward propellant grain component in the case, an aft propellant grain component, and a slot former interposed between the forward and aft grains made of propellant and having spacers on one side thereof to create a radially extending slot between the forward and aft grain components, the improvement comprising:

a reinforcing frame embedded in the slot former and having loops integral therewith that extend beyond the surface of the slot former propellant to facilitate handling of the slot former, the frame being made of rigid tubes filled with solid propellant to promote consumability thereof.

2. The rocket motor of claim 1 wherein the rigid tubes are made of fiber-glass impregnated with a cured resin.

3. A reinforcing frame for a solid propellant slot former comprising a substantially planar system of interconnected rods made of rigid tubes, comprising fiber glass impregnated with a cured resin, filled with solid propellant;

and loops connected thereto, extending substantially perpendicular to the plane of the frame.