PATENT CLAIM ANALYSIS

Application Number: 16119015
Application Type: Utility
Filing Date: 2018-08
Publication Date: 2019-03
Patent Classification: ["198", "336000"]

Abstract:
The present disclosure discloses a tension device for a drive chain of a handrail system of an escalator system, a method and an escalator system including the same. The tension device for the drive chain applies pressures in opposite directions to a drive chain so as to make portions of the drive close to each other to tension the drive chain. The pressures are applied to the drive chain via a weight or a pre-loaded spring. The present disclosure also provides a method for tensioning a drive chain. The present disclosure can eliminate loosening of the drive chain after running several months, eliminate periodic heavy work on site for the escalator system and a drive system comprising the drive chain, and improve quality thereof in a simple, reliable and low cost manner.

Claim (Index 12):
The tension device of  claim 9 , wherein\n a spring support rod fastener is provided on one connecting rod, by which one end of a spring support rod is secured to the one connecting rod, a guiding and supporting member for the spring support rod is provided on the other connecting rod, through which the other end of the spring support rod extends, and a spring and a spring adjuster are supported on the guiding and supporting member, with the spring adjuster being disposed on outer side of the connecting rods and the spring being pre-pressed between the spring adjuster and the spring guiding and supporting member, and wherein the spring applies pressures to the connecting rods through the spring support rod fastener and the guiding and supporting member, to allow the connecting rods to rotate about respective hinges close to each other, and the pressing blocks to apply pressures to the portions of the drive chain to move them chain close to each other.

Metadata:
- Claim Count in Document: 6.0
- Percentile: 96.0
- Lexical Diversity: 2.13636
- Patent Class: 198.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15531497', '10817524', '11902502', '10911565', '10728852']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7441910553142582
- 35 USC 102 Novelty (BERT): 0.4881950304685833
- Combined Prediction Score: 0.7185914528296907
- Mean Citation Score: 200.55402
- Max Citation Score: 219.46193
- Similarity Product: 125.0498828559768

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