PATENT CLAIM ANALYSIS

Application Number: 16377312
Application Type: Utility
Filing Date: 2019-04
Publication Date: 2019-10
Patent Classification: ["074", "574400"]

Abstract:
The disclosed invention is a novel method for constructing a LSTSD that simultaneously yields the following advantages over conventional designs: (1) the elastomer is not mold-bonded to the two metallic extremities; (2) the amount of elastomer is relatively smaller compared to conventionally constructed devices; (3) the device only allows the torsional direction to be spring loaded; (4) there is some damping inherently present in the system; (5) the device does not disintegrate on failure of the elastomeric element; and (6) the device is serviceable in the field without disengaging from the rotating shaft. Such a LSTSD when used in a TVI or a TVA would reduce its cost while improving its structural and modal integrity and enabling its serviceability in the field.

Claim (Index 1):
A Low Stiffness Torsional Spring-Damper (LSTSD), comprising:\n a hub including,\n a first cylindrical Inner Diametric surface (ID) that is radially most proximate to the axial centerline of the LSTSD (CL); \n a second cylindrical Outer Diametric surface (OD) that is radially most distal to the CL; \n a first planar annular surface that connects the ID and OD; \n a second planar annular surface that connects the ID and OD and is axially opposed to the first planar annular surface; and \n the first and second planar annular surfaces include a plurality of axially through openings (openings); \n a tubular split bushing (bush) including,\n a first cylindrical surface radially proximate to the CL that is a non-slippery surface and is received by the OD of the flange as a press-fit; \n a second cylindrical surface radially distal to the CL that is a slippery surface; \n bounded axially by two planar annular surfaces; and \n having a split across the tubular wall that enables bush to be radially flexed during installation; \n an axisymmetric ring including,\n a first ID radially proximate to the CL, further including,\n a radially oriented rectangular recessed channel (channel) disposed radially distal to the CL receiving the OD of the bush as a slip fit for enabling rotation; and \n two opposing circumferentially bounding ledges on either axial periphery preventing axial motion of the bush after assembly relative to the ring; \n \n a second axis-symmetric surface radially distal to the CL; and \n two axially opposing annular surfaces bounding the first and the second axis-symmetric surfaces of the ring, each further including a plurality of axially oriented holes \n a plurality of grooved headed-pegs (pegs) including,\n a cylindrical head (head) with a radially oriented groove; and \n a cylindrical end that is smaller in diameter than the head and is received by the plurality of axially oriented holes present in the ring; \n a plurality of O-rings that pass twin-fold through the openings in the hub and are stretched and loaded onto the grooves in the pegs on either axial periphery of the ring; thereby creating a LSTSD that mounts onto the rotating shaft by the first ID surface of the hub only allowing spring loaded torsional motion between the hub and the ring, and enabling the replacement of a damaged spring without disassembly of the LSTSD from the rotating shaft.

Metadata:
- Claim Count in Document: 32.0
- Percentile: 100.0
- Lexical Diversity: 1.56044
- Patent Class: 74.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['16207266', '14373653', '12975612', '11208454', '12079319']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7555324357933448
- 35 USC 102 Novelty (BERT): 0.4612503244703405
- Combined Prediction Score: 0.7261042246610444
- Mean Citation Score: 166.628804
- Max Citation Score: 221.87599
- Similarity Product: 163.96201061032176

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