PATENT CLAIM ANALYSIS

Application Number: 15914417
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-08
Patent Classification: ["060", "670000"]

Abstract:
A high efficiency uniflow steam engine having automatic inlet and exhaust valves rather than camshaft operated valves includes an electromagnet and cooperating armature that actuates a cutoff control valve for closing a steam inlet valve at any time selected to cut off the flow of steam to the cylinder. Approaching the end of the exhaust stroke, e.g., about 0.12 inch before TDC the cylinder can be sealed to thereby compressing the remaining residual steam down to a minute clearance approaching zero, for example, 0.020 inch raising cylinder steam pressure enough to open the steam inlet valve without physical contact between the piston and the steam inlet valve eliminating tappet noise, shock and wear.

Claim (Index 8):
A steam engine comprising,\n a cylinder having a piston that is sealingly and slidably mounted therein at an end of a steam expansion chamber and is operatively connected to a crankshaft, a steam inlet valve that is constructed to seal a valve seat in the engine that communicates between a steam supply port and the steam expansion chamber, a steam exhaust valve communicating with the steam expansion chamber, an electromagnet constructed for holding an armature proximate thereto when electric current is supplied thereto, the armature being operatively associated with the steam inlet valve and a cutoff valve that is mounted in the engine for reciprocation and is responsive to actuation by the electromagnet to close the steam inlet valve at a time selected for the cutting off the admission of steam to the expansion chamber.

Metadata:
- Claim Count in Document: 10.0
- Percentile: 90.0
- Lexical Diversity: 1.51899
- Patent Class: 60.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15794486', '13532853', '15077576', '12959025', '12387113']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7305586886325925
- 35 USC 102 Novelty (BERT): 0.5120204984027799
- Combined Prediction Score: 0.7087048696096113
- Mean Citation Score: 309.707278
- Max Citation Score: 337.04297
- Similarity Product: 304.9198154958487

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