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 1):
A water hammer arrester, the water hammer arrester configured for connection with a plumbing system, the water hammer arrester 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 having 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; 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; 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): 0.7251008205137419
- 35 USC 102 Novelty (BERT): 0.4910385981412706
- Combined Prediction Score: 0.7016945982764947
- Mean Citation Score: 233.918352
- Max Citation Score: 325.7735600000001
- Similarity Product: 296.2750536353732

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