PATENT CLAIM ANALYSIS

Application Number: 15754535
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-08
Patent Classification: ["267", "273000"]

Abstract:
A tubular spring, such as a coil spring, a torsion-rod spring, and/or a stabilizer for motor vehicles, may comprise at least one metal tube element having a tube internal cross section, a tube internal diameter, a tube external diameter, a tube internal wall, and a tube wall thickness. At least one metal foam may be disposed in the tube internal cross section of the at least one metal tube element of the tubular spring in at least one part-region. The metal foam may be connected in an at least partially materially integral manner to the tube internal wall of the metal tube element. Further, the at least one metal tube element may have an at least partially martensitic structure.

Claim (Index 21):
A method for producing a tubular spring that is foamed in at least one part-region, the method comprising:\n providing a preliminary material composition comprising a metal component having a melting temperature, and an expanding agent component; providing a tubular spring comprising a metal tube element having a tube internal cross section, a tube internal diameter, a tube external diameter, a tube internal wall, and a tube wall thickness; inserting the preliminary material composition into the metal tube element of the tubular spring, wherein the metal tube element is filled completely or in the at least one part-region; and foaming the preliminary material composition by heating at least partially the metal component of the preliminary material composition to at least a foaming temperature that is higher than the melting temperature of the metal component, wherein at least part of the heating is performed while configuring a metal foam and producing the metal tube element that is foamed in the at least one part-region, thereby producing the tubular spring that is foamed in the at least one part-region, wherein an at least partially materially integral connection is configured in the at least one part-region between the metal foam and the tube internal wall of the metal tube element.

Metadata:
- Claim Count in Document: 26.0
- Percentile: 88.0
- Lexical Diversity: 2.53846
- Patent Class: 267.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['10478193', '13264446', '11670340', '15028869', '14236189']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6892810202424696
- 35 USC 102 Novelty (BERT): 0.4531315180457324
- Combined Prediction Score: 0.665666070022796
- Mean Citation Score: 114.989682
- Max Citation Score: 116.40779
- Similarity Product: 81.49923136402549

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

Dataset: test