PATENT CLAIM ANALYSIS

Application Number: 15759351
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-09
Patent Classification: ["091", "459000"]

Abstract:
An underwater actuator includes: a housing to be immersed under water; a cylinder chamber formed in the housing; a piston accommodated in the cylinder chamber so the piston is movable in a sliding manner in the cylinder chamber, the piston dividing the cylinder chamber into a first and a second pressure receiving chambers; a rod extending from the piston to the first pressure receiving chamber side, the rod penetrating the housing; a release chamber formed in the housing, having an internal pressure kept lower than a water pressure outside of the housing; and a switching mechanism including: a first switcher configured to switch a communication state between the second pressure receiving chamber and the outside of the housing to allow or block communication therebetween; and a second switcher configured to switch a communication state between the second pressure receiving chamber and the release chamber to allow or block communication therebetween.

Claim (Index 6):
The underwater actuator according to  claim 5 , wherein\n the spool moves in the sliding chamber from one end toward another end thereof, such that a position of the spool shifts from a first position to a second position and a third position in this order, when the spool is in the first position, the first switcher blocks the second pressure receiving chamber from the outside of the housing, and the second switcher blocks the second pressure receiving chamber from the release chamber, when the spool moves from the first position to the second position, the first switcher allows the second pressure receiving chamber to communicate with the outside of the housing, and the second switcher keeps blocking the second pressure receiving chamber from the release chamber, and when the spool moves from the second position to the third position, the first switcher blocks the second pressure receiving chamber from the outside of the housing, and the second switcher allows the second pressure receiving chamber to communicate with the release chamber.

Metadata:
- Claim Count in Document: 15.0
- Percentile: 90.0
- Lexical Diversity: 2.6129
- Patent Class: 91.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['13633604', '13534953', '12443159', '11325986', '11292879']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.620359005558373
- 35 USC 102 Novelty (BERT): 0.4851701743185625
- Combined Prediction Score: 0.6068401224343919
- Mean Citation Score: 182.507026
- Max Citation Score: 185.60454
- Similarity Product: 127.03613693749308

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

Dataset: test