PATENT CLAIM ANALYSIS

Application Number: 15889545
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-07
Patent Classification: ["123", "321000"]

Abstract:
A compression-release brake system is provided that includes a lost motion exhaust rocker assembly, an actuation piston, and a reset device. The actuation piston includes an actuation piston body that is slidably received by the rocker arm to define a piston cavity in the rocker arm and is movable between piston retracted and extended positions. The actuation piston is configured to be operatively associated with the exhaust valve to permit unseating of the exhaust valve from the seated state. An actuation piston check valve is configured to move between closed and open positions to permit hydraulic fluid flow through an actuation piston communication port to the piston cavity. The reset device includes a reset check valve and a reset pressure control spring for applying a biasing force to the reset check valve to urge the reset check valve toward an open position.

Claim (Index 29):
A compression-release brake system for effectuating a compression-release engine braking operation in connection with an internal combustion engine comprising an engine cylinder that is associated with a four-stroke piston cycle comprising a compression stroke and an expansion stroke and is provided with at least one intake valve, at least one exhaust valve, and at least one exhaust valve return spring exerting a closing force on the exhaust valve to urge the exhaust valve into a seated state, the compression-release brake system comprising:\n a lost motion exhaust rocker assembly comprising a rocker arm; an actuation piston comprising an actuation piston body slidably received by a first pocket of the rocker arm, the first pocket defining a piston cavity in the rocker arm, movable between a piston retracted position and a piston extended position, the actuation piston configured to be operatively associated with an exhaust valve to permit unseating of the exhaust valve from the seated state, the first pocket having an actuation piston port configured to supply pressurized fluid to move the actuation piston between the retracted position and the extended position; and a reset device including a threaded body, received by a substantially cylindrical second pocket reset bore of the rocker arm, and having a contacting foot on an end thereof for operating the exhaust valve in ordinary engine operation, and the reset device being adapted to adjust valve lash in the lost motion rocker arm via the threaded body, the reset device operatively associated with the first pocket through at least one connecting conduit, and comprising a reset check valve configured to move between a closed position and an open position to provide regulation of a fluid flow to and from the piston cavity, the reset check valve further comprising a reset pressure control spring for applying a biasing force to the reset check valve to urge the reset check valve toward the closed position.

Metadata:
- Claim Count in Document: 107.0
- Percentile: 88.0
- Lexical Diversity: 2.09859
- Patent Class: 123.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15241609', '15193668', '14553177', '12533628', '13042588']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8255735191886356
- 35 USC 102 Novelty (BERT): 0.6558353804941596
- Combined Prediction Score: 0.808599705319188
- Mean Citation Score: 544.776876
- Max Citation Score: 644.1686
- Similarity Product: 639.1207514271497

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