PATENT CLAIM ANALYSIS

Application Number: 16057240
Application Type: Utility
Filing Date: 2018-08
Publication Date: 2018-12
Patent Classification: ["175", "220000"]

Abstract:
A drill rod clamping system for securing a drill rod in a selected position. The drill rod clamping system has a hollow spindle with an upper portion that defines axial slots and a base portion that defines at least one radial opening. A plurality of jaws are moveable radially inwardly to a drill rod gripping position and radially outwardly to a drill rod releasing position. Each jaw is received within a respective axial slot of the hollow spindle. An actuator moves the plurality of jaws between the drill rod gripping position and the drill rod releasing position. A compressed gas spring assembly exerts force on the actuator to close the jaws. A hydraulic operator exerts force on the actuator to overcome the force of the compressed gas spring assembly to open the jaws. The radial openings of the base portion of the spindle permit flushing of material flowing within the spindle.

Claim (Index 5):
The drill rod clamping system of  claim 4 , further comprising a gas spring retainer that circumferentially surrounds the hollow spindle and at least partially encloses the compressed gas springs, wherein the gas spring retainer has an inner stop surface, and wherein the pistons of the compressed gas springs of the compressed gas spring assembly are configured to engage the stop surface to urge the actuator away from the stop surface to the jaw closing position.

Metadata:
- Claim Count in Document: 3.0
- Percentile: 96.0
- Lexical Diversity: 2.23944
- Patent Class: 175.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15387981', '14650977', '15306274', '14164053', '12465429']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.689969403372494
- 35 USC 102 Novelty (BERT): 0.5890184163484291
- Combined Prediction Score: 0.6798743046700876
- Mean Citation Score: 301.752388
- Max Citation Score: 554.8039
- Similarity Product: 481.53805599746704

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