Stabilized end cap for common launch tube

Patent metadata

Field	Value
Publication number	US-12540792-B2
Application number	US-202318380234-A
Country	US
Kind code	B2
Filing date	Oct 16, 2023
Priority date	Nov 28, 2022
Publication date	Feb 3, 2026
Grant date	Feb 3, 2026

Abstract

A stabilized end cap for covering one end of a common launch tube on a military aircraft is disclosed. The stabilized end cap includes a central body having a portion with a disk-shape configuration. In some cases, the stabilized end cap has a peripheral extension that extends radially outward from the periphery of the central body, and the peripheral extension is provided with an aerodynamic configuration. In other cases, the stabilized end cap has at least one aerodynamic extension extending longitudinally outward from the outside surface of the central body.

First claim

What is claimed is:

1 . An end cap for covering an opening on one end of a common launch tube on a military aircraft, the common launch tube having an interior for housing an article which is to be deployed from the common launch tube, said end cap comprising:
a central body comprising a portion with a disk-shape configuration, said central body having an inside surface for facing the opening of a common launch tube, an outside surface for facing outside the common launch tube, a center, and a periphery, wherein the periphery of the central body is sized and configured to fit adjacent to the end opening of a common launch tube; and a peripheral extension extending radially outward from the periphery of said central body in a direction away from the center of said central body, wherein said peripheral extension is provided with an aerodynamic configuration, wherein the central body and the peripheral extension of the end cap are joined together and are configured to be pushed into the free stream air as a single unit when separated from the common launch tube.

2 . The end cap of claim 1 wherein the peripheral extension is in the form of a lip in the configuration of an air foil.

3 . An end cap for covering an opening on one end of a common launch tube on a military aircraft, the common launch tube having an interior for housing an article which is to be deployed from the common launch tube, said end cap comprising:
a central body comprising a portion with a disk-shape configuration, said central body having an inside surface for facing the opening of a common launch tube, an outside surface for facing outside the common launch tube, a center, and a periphery, wherein the periphery of the central body is sized and configured to fit adjacent to the end opening of a common launch tube; and a peripheral extension extending radially outward from the periphery of said central body in a direction away from the center of said central body, wherein said peripheral extension is provided with an aerodynamic configuration, wherein the peripheral extension is in the form of a lip in the configuration of an air foil, and the lip has an inwardly-facing surface that is in the configuration of a channel with a concave cross-section surrounding the central body, wherein said lip has an outside surface that is an extension of the outside surface of the central body.

4 . The end cap of claim 2 wherein the lip has a plurality of holes therein that are distributed around the perimeter thereof.

5 . An end cap for covering an opening on one end of a common launch tube on a military aircraft, the common launch tube having an interior for housing an article which is to be deployed from the common launch tube, said end cap comprising:
a central body comprising a portion with a disk-shape configuration, said central body having an inside surface for facing the opening of a common launch tube, an outside surface for facing outside the common launch tube, a center, and a periphery, wherein the periphery of the central body is sized and configured to fit adjacent to the end opening of a common launch tube; and a peripheral extension extending radially outward from the periphery of said central body in a direction away from the center of said central body, wherein said peripheral extension is provided with an aerodynamic configuration, wherein the peripheral extension is in the form of a lip in the configuration of an air foil, and the lip has a plurality of holes therein that are distributed around portions of the perimeter thereof, and the lip is provided with an outermost edge having a plurality of fins extending rearwardly therefrom adjacent the location of each of said holes.

6 . An end cap for covering an opening on one end of a common launch tube on a military aircraft, the common launch tube having an interior for housing an article which is to be deployed from the common launch tube, said end cap comprising:
a central body comprising a portion with a disk-shape configuration, said central body having an inside surface for facing the opening of a common launch tube, an outside surface for facing outside the common launch tube, a center, a central axis passing through the center, and a periphery, wherein the periphery of the central body is sized and configured to fit adjacent to the end opening of a common launch tube; and at least one aerodynamic extension extending outward from the outside surface of the central body in the direction of the central axis of the central body, wherein said extension is provided with an aerodynamic configuration.

7 . The end cap of claim 6 wherein the aerodynamic extension comprises a plurality of tail strakes that are spaced apart and distributed radially around the periphery of the central body, wherein said tail strakes have a longer dimension, and are oriented so that their longer dimensions extend toward the center of the central body, and a portion of the tail of each of the tail strakes extends radially outward beyond the periphery of the central body.

8 . The end cap of claim 6 wherein the aerodynamic extension comprises an elongated central member that is joined to the outside surface at the center of the central body, which central member has a longitudinal axis and extends in a direction perpendicular to the outside surface, wherein a plurality of fins are joined to the central member extend in the direction of the longitudinal axis of the central member, wherein said fins have a fore portion, an aft portion, a leading edge, a trailing edge, an inner edge, and an outer edge, wherein said fins are joined at their inner edges to said central member and extend outward therefrom to their outer edges.

9 . The end cap of claim 8 further comprising a circular ring joined to the outer edges of the fins at the aft portions of said fins.

10 . The end cap of claim 9 wherein said central body has a diameter and said circular ring has a diameter, wherein the diameter of the circular ring is greater than or equal to the diameter of the central body.

11 . The end cap of claim 9 wherein said central body has a diameter and said circular ring has a diameter, wherein the diameter of the circular ring is less than the diameter of the central body.

Assignees

• Us Gov Air Force
• Us Air Force

Inventors

• Hall Andrew
• Revilla John
• Wiseman Joshua
• Snively Kelsey
• Hall Matthew

Classifications

• F41F3/077 Primary

  Doors or covers for launching tubes · CPC title