PATENT CLAIM ANALYSIS

Application Number: 16101000
Application Type: Utility
Filing Date: 2018-08
Publication Date: 2019-02
Patent Classification: ["060", "258000"]

Abstract:
Provided herein are various improvements to rocket engine components and rocket engine operational techniques. In one example, a rocket engine propellant injection apparatus is provided that includes a manifold formed into a single body by an additive manufacturing process and comprising a fuel cavity and an oxidizer cavity. The manifold also includes one or more propellant feed stubs, the one or more propellant feed stubs protruding from the manifold and formed into the single body of the manifold by the additive manufacturing process, with at least a first stub configured to carry fuel to the fuel cavity and at least a second stub configured to carry oxidizer to the oxidizer cavity. The manifold also includes a plurality of injection features formed by apertures in a face of the manifold, ones of the plurality of injection features configured to inject the fuel and the oxidizer for combustion.

Claim (Index 8):
A rocket engine, comprising:\n a combustion chamber configured to receive liquid oxygen and liquid propylene; a first feed line configured to carry the liquid oxygen from a first tank to a first main valve; a second feed line configured to carry the liquid propylene from a second tank to a second main valve; and an injector assembly configured to receive the liquid oxygen and the liquid propylene from associated ones of the first and second main valves and inject the liquid oxygen and the liquid propylene into the combustion chamber, the injector assembly formed into a body by an additive manufacturing process and comprising:\n a fuel cavity; \n an oxidizer cavity that forms a quasi-toroidal shape around the fuel cavity; \n feed stubs forming tube structures tapered outwards from a first face of the injector assembly and formed into the body of the injector assembly by the additive manufacturing process, wherein the feed stubs are each mechanically swaged or flared to mate with a compression-type fitting in a metal-to-metal seal for attachment to an associated feed line routed from the associated ones of the first and second main valves; \n wherein at least a first stub extends outward from a first position of the first face of the injector assembly and is configured to carry the liquid propylene to the fuel cavity; \n wherein at least a second stub extends outward from the first face of the injector assembly in a position offset from the first position and is configured to carry the liquid oxygen to the oxidizer cavity; and \n injection apertures in a second face of the injector assembly opposite the first face of the injector assembly, each of the fuel cavity and the oxidizer cavity feeding a corresponding subset of the injection apertures, with corresponding ones of the injection apertures configured to inject the liquid oxygen and the liquid propylene into the combustion chamber for combustion.

Metadata:
- Claim Count in Document: 7.0
- Percentile: 96.0
- Lexical Diversity: 2.33333
- Patent Class: 60.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15285324', '11479082', '14229823', '11805016', '11787585']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.725872696933622
- 35 USC 102 Novelty (BERT): 0.5754896794415219
- Combined Prediction Score: 0.710834395184412
- Mean Citation Score: 292.4756260000001
- Max Citation Score: 478.2507
- Similarity Product: 455.2177107898592

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 0
- Combined Label: 1
- Label 101 Adjusted: 0

Dataset: test