PATENT CLAIM ANALYSIS

Application Number: 15755339
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-08
Patent Classification: ["137", "487500"]

Abstract:
A pressure-relief valve for a lubrication system includes a housing defining a first chamber and a second chamber separated by a passageway, a biasing element disposed within the first chamber, a piston having a first piston portion disposed within the first chamber and a second piston portion disposed within the second chamber, and a first inlet in fluid communication with the first chamber. The first inlet allows a fluid to enter the first chamber and act upon the first piston portion to compress the biasing element at a first pressure level. The pressure-relief valve also includes a second inlet in fluid communication with a solenoid and the second chamber. The solenoid has a first position allowing the fluid to enter the second chamber to act upon the second piston portion, combining with the fluid acting upon the first piston portion to compress the biasing element at a second, lower pressure level.

Claim (Index 15):
A pressure-relief valve, comprising:\n a housing ( 104 ) defining a first chamber ( 106 ) and a second chamber ( 108 ) separated by a passageway ( 110 ) having a cross-sectional area smaller than a cross-sectional area of the first chamber ( 106 ) and smaller than a cross-sectional area of the second chamber ( 108 ); a biasing element ( 112 ) disposed within the first chamber ( 106 ); a piston ( 114 ) having a first piston portion ( 116 ) disposed within the first chamber ( 106 ) and a second piston portion ( 118 ) disposed within the second chamber ( 108 ), wherein the first piston portion ( 116 ) and the second piston portion ( 118 ) are coupled by a piston rod ( 120 ) extending between the first chamber ( 106 ) and the second chamber ( 108 ) through the passageway ( 110 ) to fluidly seal the first chamber ( 106 ) from the second chamber ( 108 ); a first inlet ( 122 ) in fluid communication with the first chamber ( 106 ) and a fluid source ( 124 ), the first inlet ( 122 ) allowing a fluid from the fluid source ( 124 ) to enter the first chamber ( 106 ) to act upon the first piston portion ( 116 ) to compress the biasing element ( 112 ) at a first pressure level; a second inlet ( 126 ) in fluid communication with the second chamber ( 108 ) and the fluid source ( 124 ), the second inlet ( 126 ) allowing the fluid from the fluid source ( 124 ) to enter the second chamber ( 108 ) to act upon the second piston portion ( 118 ), combining with the fluid acting upon the first piston portion ( 116 ) to compress the biasing element ( 112 ) at a second pressure level, wherein the second pressure level is lower than the first pressure level; a solenoid ( 102 ) in fluid communication with the second inlet ( 126 ), the solenoid ( 102 ) having a first position allowing the fluid to enter the second inlet ( 126 ) and a second position blocking the fluid from entering the second inlet ( 126 ); and an outlet ( 134 ) in fluid communication with the first chamber ( 106 ), wherein compression of the biasing element ( 112 ) allows the fluid entering the first chamber ( 106 ) to exit the first chamber ( 106 ) through the outlet ( 134 ).

Metadata:
- Claim Count in Document: 5.0
- Percentile: 88.0
- Lexical Diversity: 3.2
- Patent Class: 137.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15709758', '13262982', '13811971', '10333715', '10576371']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8443064864145253
- 35 USC 102 Novelty (BERT): 0.488127322509416
- Combined Prediction Score: 0.8086885700240144
- Mean Citation Score: 251.51031000000003
- Max Citation Score: 278.34036000000003
- Similarity Product: 213.98483927169087

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

Dataset: test