PATENT CLAIM ANALYSIS

Application Number: 15755329
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-08
Patent Classification: ["188", "313000"]

Abstract:
Provided is a shock absorber capable of smoothly changing a damping force in a low speed range of piston speed and of opening a main valve with a smaller differential pressure. An auxiliary valve ( 111 ) is provided on an upstream side of a main valve ( 27 ) in series with the main valve ( 27 ). Thus, the damping force in the low speed range of the piston speed can be smoothly changed. Further, the main valve ( 27 ) has a simply-supported structure in which an inner peripheral side thereof is prevented from being clamped and is supported in a cantilever state. Thus, the main valve ( 27 ) can be opened with a smaller differential pressure.

Claim (Index 1):
A shock absorber, comprising:\n a cylinder sealingly containing hydraulic fluid; a piston slidably fitted to the cylinder; a piston rod coupled to the piston and extended to an outside of the cylinder; and a damping force generating mechanism configured to generate a damping force through control of a flow of the hydraulic fluid that is caused by sliding of the piston in the cylinder, the damping force generating mechanism including:\n a valve body, which has a communication passage formed therein, and includes an inner seat portion and an outer seat portion that are respectively formed on a center side and an outer peripheral side of the valve body across the communication passage; \n a main valve of a pilot type, which is provided to be capable of being separated from and seated on the outer seat portion, and is opened by receiving a pressure of the hydraulic fluid, to thereby generate a damping force, a pressure of opening the main valve being adjusted by an internal pressure in a pilot chamber formed on a side opposite to the outer seat portion; \n a control valve, which is a pressure control valve configured to control the internal pressure in the pilot chamber into which the hydraulic fluid is led; and \n an auxiliary valve provided on an upstream side of the main valve in series with the main valve, \n wherein the main valve is an annular disc valve that is opened and closed in such a manner that an outer peripheral side thereof is separated from and seated on a valve seat, and wherein an inner peripheral side of the main valve is prevented from being clamped from both surface sides thereof, and the main valve is supported only from one surface side on the inner peripheral side by the first retainer.

Metadata:
- Claim Count in Document: 5.0
- Percentile: 88.0
- Lexical Diversity: 2.18644
- Patent Class: 188.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14224768', '14832162', '12963739', '14832149', '11134453']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8177491388263071
- 35 USC 102 Novelty (BERT): 0.4654440628342386
- Combined Prediction Score: 0.7825186312271002
- Mean Citation Score: 257.10134600000004
- Max Citation Score: 266.1221
- Similarity Product: 242.4535429055214

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

Dataset: test