PATENT CLAIM ANALYSIS

Application Number: 16358113
Application Type: Utility
Filing Date: 2019-03
Publication Date: 2019-09
Patent Classification: ["417", "375000"]

Abstract:
A system for energy recovery from a rod pump includes, in an exemplary embodiment, a hydraulic cylinder having a barrel, a piston, and a pressure chamber; the piston connected to a rod string of the rod pump; a reversible hydraulic pump connected to the pressure chamber; and a motor-generator having a rotor shaft connected to a coupling shaft of the pump; wherein the motor-generator operates in a motor mode to rotate the rotor and coupling shafts in a forward direction so that the hydraulic pump pumps hydraulic fluid to the pressure chamber to raise the piston and rod string in an upstroke, and operates in a generator mode in which a weight of the rod string displaces the piston in a downstroke to pump hydraulic fluid from the pressure chamber to rotate the pump coupling shaft and the rotor shaft in a reverse direction such that the motor-generator generates electricity.

Claim (Index 15):
The system of  claim 14 , wherein the first piston is 180\u00b0 out of phase with the second piston; so that when the first piston and the first rod string are in an upstroke, the second piston and the second rod string are in a downstroke; and when the second piston and second rod string are in an upstroke, the first piston and the first rod string are in a downstroke.

Metadata:
- Claim Count in Document: 17.0
- Percentile: 99.0
- Lexical Diversity: 2.75862
- Patent Class: 417.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['14680740', '16013408', '15013210', '12803478', '15258755']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8166327065214746
- 35 USC 102 Novelty (BERT): 0.5442136023197494
- Combined Prediction Score: 0.7893907961013021
- Mean Citation Score: 368.470156
- Max Citation Score: 395.69537
- Similarity Product: 251.09091658153832

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

Dataset: test