PATENT CLAIM ANALYSIS

Application Number: 15749848
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-08
Patent Classification: ["060", "417000"]

Abstract:
A hydraulic actuator includes a piston accommodated to slide hermetically in a hollow cylinder to divide the internal volume of the hollow cylinder into two chambers. The hydraulic actuator includes a first movable element accommodated so that it can slide hermetically in a longitudinal cavity defined inside the piston stem to divide the longitudinal cavity into two portions with the first one connected to one of the two chambers and the second one connectable to a second circuit adapted to feed under pressure a second fluid into the second portion. The second fluid has a coefficient of compressibility and a nominal pressure greater than those of the first fluid to act as a shock absorber and/or damper in case of sudden peaks of pressure in the chamber connected to the first portion of the longitudinal cavity defined inside the piston stem.

Claim (Index 30):
The hydraulic actuator according to  claim 29 , wherein said at least one safety valve comprises a valve body that defines a first feed or discharge duct provided with a first normally-closed one-way valve that acts in output to said valve body and with a first calibrated port that is parallel to said first one-way valve and a second feed or discharge duct, which are connected to a main chamber defined inside said valve body, said first feed or discharge duct being connected to said discharge duct by means of a second normally-closed one-way valve which is accommodated inside said main chamber and acts in output to said valve body from said first feed or discharge duct toward said discharge duct, said second feed or discharge duct being connected to said delivery duct by means of a third normally-closed one-way valve and a fourth normally-closed one-way valve, which are accommodated inside said main chamber in sequence to each other and act in output to said valve body from said second feed or discharge duct toward said delivery duct, between said first feed or discharge duct and said second feed or discharge duct there being a pilot slider of said second one-way valve and of said third one-way valve which is accommodated so that it can slide hermetically in said main chamber, between said third one-way valve and said fourth one-way valve there being a second calibrated port and also a maximum-pressure valve accommodated in said valve body and connected to said third one-way valve and to said fourth one-way valve so as to bypass said second calibrated port.

Metadata:
- Claim Count in Document: 44.0
- Percentile: 88.0
- Lexical Diversity: 2.18182
- Patent Class: 60.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['14682327', '13806147', '12680627', '13911436', '10521739']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7447657477602232
- 35 USC 102 Novelty (BERT): 0.4726550912697562
- Combined Prediction Score: 0.7175546821111765
- Mean Citation Score: 203.518882
- Max Citation Score: 211.22083
- Similarity Product: 161.7047934568584

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