PATENT CLAIM ANALYSIS

Application Number: 15758270
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-08
Patent Classification: ["166", "241600"]

Abstract:
A centralizer sub, system, and method for enhanced access to subterranean zones from the surface as used in oil and gas wellbore installations to center a pipe or casing within a wellbore or previous casing string during run-in, installation, or cementing procedures. In under-reamed applications, casing strings and centralizers pass through a smaller casing string before opening up to a larger hole where repeated compressions and decompressions of bow strings of centralizers can compromise integrity and reliability. A centralizer sub, system, and method reduces and controls insertion and running forces to preserve centralizer integrity and down-bore surfaces and equipment.

Claim (Index 1):
In a casing sub having a deployable bow spring centralizer, a selectively releasable locking mechanism comprising:\n a receptacle; a tab capable of engaging said receptacle; a member to bias said lock; a first ratchet band capable of circumferential movement about said casing sub, said first ratchet band forming one or more release notches; a second ratchet band capable of circumferential movement about said casing sub, said second ratchet band capable of engagement with said first ratchet band, said second ratchet band forming a notch capable of receiving a spring end; a compression spring having a first end and a second end and fitted around the circumference of said casing sub, said first end forming a spring end; an end band mounted to said casing sub adapted to prevent rotational movement of said end band relative to the casing sub, said end band forming a notch to receive said second end of said compression spring; and a cover fitted around said first ratchet band, said second ratchet band, and said compression spring.

Metadata:
- Claim Count in Document: 2.0
- Percentile: 90.0
- Lexical Diversity: 1.57971
- Patent Class: 166.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15258671', '15399836', '14338620', '14961091', '14447187']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7849528313574066
- 35 USC 102 Novelty (BERT): 0.5900888900195498
- Combined Prediction Score: 0.765466437223621
- Mean Citation Score: 292.921762
- Max Citation Score: 516.53
- Similarity Product: 498.7582655471562

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

Dataset: test