US 12,442,349 B1
Rocket motors and methods of manufacturing rocket motors
Mark Eagar, Cameron Park, CA (US); Bryan Beaudette, Placerville, CA (US); Andrew Sherman, Boulder, CO (US); Jeffrey Hansen, Rescue, CA (US); and Andrew Max Vozoff, Boulder, CO (US)
Assigned to X-Bow Launch Systems Inc., Albuquerque, NM (US)
Filed by X-Bow Launch Systems Inc., Albuquerque, NM (US)
Filed on May 23, 2024, as Appl. No. 18/673,098.
Claims priority of provisional application 63/468,337, filed on May 23, 2023.
Int. Cl. F02K 9/36 (2006.01); F02K 9/08 (2006.01); F02K 9/24 (2006.01)
CPC F02K 9/36 (2013.01) [F02K 9/08 (2013.01); F02K 9/24 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A rocket motor comprising:
a. composite case having a forward end and an aft end;
b. wherein the forward end has a radial retention interface, the radial retention interface comprising a multi-stack polar boss, multi-stack forward polar boss enclosure, and radial tabs numbering between three and twenty;
c. wherein the multi-stack polar boss is molded with boss molding material into said radial tabs;
d. wherein the multi-stack polar boss is wound into the composite case;
e. wherein a plurality of multi-stack cartridges houses a propellant and a central combustion chamber;
f. wherein the plurality of multi-stack cartridges are suspended inside the composite case, the plurality of multi-stack cartridges comprising at least a forward cartridge, a primary cartridge, and an aft cartridge;
g. wherein the plurality of multi-stack cartridges are secured in fitted engagement by a plurality of joints, and wherein the plurality of multi-stack cartridges are retained co-axially with the composite case; and
h. wherein the aft cartridge is located at the aft end of the composite case, and wherein the aft end has a closure and a nozzle.