PATENT CLAIM ANALYSIS

Application Number: 15776876
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-11
Patent Classification: ["137", "625110"]

Abstract:
A relief valve structure ( 20 ) attached to a pump body ( 10 ) includes: a first discharge portion ( 31 ) for discharging oil when a discharge pressure is a first predetermined pressure; a second discharge portion ( 32 ) for discharging the oil when the discharge pressure reaches a second predetermined pressure higher than the first predetermined pressure; a third discharge portion ( 33 ) for discharging the oil when the discharge pressure exceeds the first predetermined pressure and reaches the second predetermined pressure or a pressure lower than the second predetermined pressure; and a pressure relief hole ( 34 ) for releasing the oil from an area around a valve spring ( 23 ). The second discharge portion, the first discharge portion, the third discharge portion, and the pressure release hole are provided in this order between an introduction portion ( 29 ) and a spring retaining member ( 24 ) when viewed from the introduction portion ( 29 ).

Claim (Index 1):
A relief valve structure to be attached to a pump body, the relief valve structure comprising:\n a valve housing that is formed integrally with the pump body, a spool that is movably received in the valve housing, a valve spring that is received in the valve housing and urges the spool in a predetermined direction, and a spring retaining member that is attached to one end of the valve housing and prevents the valve spring from coming out of the valve housing, the spool including a cylindrical portion, a base portion that closes one end of the cylindrical portion and abuts the valve spring, and a through-hole that penetrates the cylindrical portion, the valve housing including an introduction portion through which oil is introduced from a discharge side of the pump body, a first discharge portion that communicates with the through-hole when the spool has moved in a direction to compress the valve spring due to the oil introduced through the introduction portion upon a discharge pressure rising to a first predetermined pressure and that allows the introduced oil to be discharged therethrough toward an intake side of the pump body, a second discharge portion that opens when the spool has moved in the direction to compress the valve spring due to the oil introduced through the introduction portion upon the discharge pressure rising to a second predetermined pressure higher than the first predetermined pressure and that allows the introduced oil to be discharged therethrough toward the intake side of the pump body, a third discharge portion that communicates with the through-hole when the spool has moved in the direction to compress the valve spring due to the oil introduced through the introduction portion upon the discharge pressure exceeding the first predetermined pressure and reaching the second predetermined pressure or a pressure lower than the second predetermined pressure and that allows the introduced oil to be discharged therethrough toward the intake side of the pump body, and a pressure relief hole that allows oil around the valve spring to be discharged therethrough toward the intake side of the pump body, the second discharge portion, the first discharge portion, the third discharge portion, and the pressure relief hole being provided in this order between the introduction portion and the spring retaining member when viewed from the introduction portion.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 93.0
- Lexical Diversity: 2.70312
- Patent Class: 137.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15026375', '14073357', '14073347', '15584283', '15290394']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8405905674674368
- 35 USC 102 Novelty (BERT): 0.4872410901338759
- Combined Prediction Score: 0.8052556197340808
- Mean Citation Score: 238.61609
- Max Citation Score: 241.59608
- Similarity Product: 159.61052584754466

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

Dataset: test