PATENT CLAIM ANALYSIS

Application Number: 15980203
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-09
Patent Classification: ["138", "031000"]

Abstract:
A water hammer arrester configured for connection with a plumbing system. The water hammer arrester has a cap assembly, a piston assembly, and a base assembly. The cap assembly receiving the piston assembly therein. The base assembly having a connector for connection with a plumbing fixture in the plumbing system.

Claim (Index 2):
A water hammer arrester, the water hammer arrester configured for connection with a plumbing system, comprising:\n a cap assembly, the cap assembly comprising a cap having an open first end and a closed second end, the cap defining an air chamber therein, the cap comprising an exterior sidewall, the exterior sidewall comprising a lower exterior sidewall adjacent the open first end, the cap further comprising a lower interior sidewall adjacent the open first end, the lower interior sidewall comprising at least one retention portion extending inwards there-from; a piston assembly, the piston assembly comprising a piston configured for sliding movement within the air chamber as pressure in the connected plumbing system changes, wherein the piston comprises a lock rim; and a base assembly, the base assembly comprising a base having a first open end configured for connection with the open first end of the cap and a connector for connection with a plumbing fixture in the plumbing system, the first open end of the base defining an exterior chamber therein surrounded by an interior sidewall, wherein extending through the base is a passageway fluidly interconnecting the first open end with the connector, the exterior chamber configured for receiving therein the open first end; wherein the retention portion is configured for retaining the piston within the air chamber after the piston is inserted through the open first end and into the cap assembly so that the lock rim is moved past the retention portion; wherein the lower interior sidewall has a general circumference, wherein the lower interior sidewall has a circumference at the retention portion, and wherein the circumference at the retention portion is smaller than the general circumference; wherein the piston has a circumference smaller than the general circumference, but greater than the circumference at the retention portion; and wherein when the first open end of the base is connected with the open first end of the cap, the piston is locked within the air chamber.

Metadata:
- Claim Count in Document: 50.0
- Percentile: 93.0
- Lexical Diversity: 2.07407
- Patent Class: 138.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['14797410', '12990344', '13837256', '13980541', '12079473']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7251769122188894
- 35 USC 102 Novelty (BERT): 0.4891462027380169
- Combined Prediction Score: 0.7015738412708021
- Mean Citation Score: 233.918352
- Max Citation Score: 325.7735600000001
- Similarity Product: 313.4808878378201

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