PATENT CLAIM ANALYSIS

Application Number: 16080660
Application Type: Utility
Filing Date: 2018-08
Publication Date: 2019-03
Patent Classification: ["083", "013000"]

Abstract:
A dust-collecting cover for an electric circular saw includes a dust-collecting cover body configured as a cavity structure thereinside. A bottom surface of a cavity is formed with a strip-shaped opening, which is used for a saw blade to pass therethrough. Other surfaces of the cavity are configured as closed structures. An airflow passage is automatically formed in the cavity during operation. A pathway of the airflow passage starts from a part of the rear end of the strip-shaped opening adjacent to saw teeth, to a front end of the strip-shaped opening in an arc shape along the outer edge of the saw blade, then turns upwards and rearwards, and along an upper wall of the cavity, then turns downwards, and stops at a part of the rear end of the strip-shaped opening away from the saw blade. A dust-collecting method is disclosed.

Claim (Index 8):
A dust-collecting method for an electric circular saw, wherein providing a dust-collecting cover on an upper side of a cut object, using a fluid feature formed inside the dust-collecting cover when a saw blade operates, taking a saw kerf of the cut object as a passage, collecting dust thrown to the upper-front side or an upper-rear side by rear teeth of the saw blade to a lower side of the cut object; the dust-collecting cover including a dust-collecting cover body that is configured as a cavity structure thereinside, a bottom surface of a cavity of the dust-collecting cover body is formed with a strip-shaped opening, which is used for a saw blade to pass therethrough, other surfaces of the cavity are configured as closed structures; the dust-collecting cover body forms an airflow passage communicating with an outside part through only the strip-shaped opening, an air inlet and an air outlet of the airflow passage are both formed at a rear end of the strip-shaped opening, wherein the air inlet is formed at the part of the rear end of the strip-shaped opening adjacent to saw teeth, the air outlet is formed at the part of the rear end of the strip-shaped opening away from the saw teeth; a pathway of the airflow passage starts from the part of the rear end of the strip-shaped opening adjacent to the saw teeth, to a front end of the strip-shaped opening in an arc shape along the outer edge of the saw blade, then turns upwards and rearwards, flows towards a rear part of the cavity along an upper wall of the cavity, then turns downwards and stops at the part of the rear end of the strip-shaped opening away from the saw blade; in the method, the dust thrown to the upper front side by the rear teeth of the saw blade first enters the airflow passage of the cavity of the dust-collecting cover body from a part of the rear teeth of the saw blade, close to the saw teeth, with an airflow generated by rotation of the saw teeth, then is entrained by an airflow in the airflow passage to a part of the rear teeth of the saw blade away from the saw teeth, flows together with the dust thrown to the upper-rear side by the rear teeth of the saw blade to a lower side of the cut object through the saw kerf of the cut object, and then is exhausted together with dust originally generated on the lower side of the cut object.

Metadata:
- Claim Count in Document: 17.0
- Percentile: 96.0
- Lexical Diversity: 2.15278
- Patent Class: 83.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['11884361', '12382884', '13980564', '11226344', '12457335']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7535840223357043
- 35 USC 102 Novelty (BERT): 0.5084526133546825
- Combined Prediction Score: 0.7290708814376022
- Mean Citation Score: 239.06591200000005
- Max Citation Score: 268.3426
- Similarity Product: 197.57224103920456

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

Dataset: test