PATENT CLAIM ANALYSIS

Application Number: 16060920
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2018-12
Patent Classification: ["175", "385000"]

Abstract:
The present application relates to a weight-on-bit self-adjusting drill bit, namely a pulsed jet type weight-on-bit self-adjusting drill bit, comprising a reaming bit, a WOB adjusting element, a transmission mechanism and a pilot bit and a pulsating impact generating mechanism; the pulsating impact generating mechanism comprises a centralizing element, a driving element, a rotating element and a throttling element which are placed and connected successively, the centralizing element, the driving element and the rotating element are connected successively, the throttling element is in clearance fit with the rotating element, both of the centralizing element and the throttling element are respectively provided with a flow-through passage for the drilling fluid to flow through, the driving element drives the rotating element to rotate, the rotating element rotates relative to the flow-through passage on the throttling element. Compared with the prior art, the present application can realize the rotary percussion drilling of the pilot bit, reduce the chip hold down effect of the pilot bit and the reaming bit, and realize the automatic and reasonable distribution of the weight on bit, thus to protect the bit, improve the bit service life and rate of penetration, and improve the drilling effect.

Claim (Index 16):
The pulsed jet type weight-on-bit self-adjusting drill bit according to  claim 13 , wherein, the impeller blades ( 1311 ) are uniformly distributed in a circumferential direction, a number of the impeller blades ( 1311 ) and a number of flow-through passages on the throttling element ( 14 ) can be adjusted according to drilling engineering requirements.

Metadata:
- Claim Count in Document: 44.0
- Percentile: 94.0
- Lexical Diversity: 2.59524
- Patent Class: 175.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['12696735', '11514384', '12640227', '12129308', '15576343']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6835485798011849
- 35 USC 102 Novelty (BERT): 0.4816834927136875
- Combined Prediction Score: 0.6633620710924353
- Mean Citation Score: 187.664932
- Max Citation Score: 197.45596
- Similarity Product: 133.31292828087092

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

Dataset: test