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 10):
The steam engine of  claim 8  wherein the engine includes a cutoff timing chamber on an opposite axially spaced end of the inlet valve from the steam expansion chamber, the cutoff timing valve is positioned to seal communication between the cutoff timing chamber and the steam expansion chamber and\n the armature is constructed and arranged to open the cutoff timing valve when the armature is actuated by the electromagnet to move from a first position to a second position such that steam then flows from the expansion chamber to the cutoff timing chamber whereupon the steam inlet valve closes thereby cutting off a supply of steam to the steam expansion chamber at a selected time responsive to operation of the electromagnet.

Metadata:
- Claim Count in Document: 10.0
- Percentile: 90.0
- Lexical Diversity: 1.51899
- Patent Class: 60.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['15794486', '13532853', '15077576', '12959025', '12387113']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7534071819755475
- 35 USC 102 Novelty (BERT): 0.5177549013530417
- Combined Prediction Score: 0.7298419539132969
- Mean Citation Score: 309.707278
- Max Citation Score: 337.04297
- Similarity Product: 262.09913480862497

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