PATENT CLAIM ANALYSIS

Application Number: 16237132
Application Type: Utility
Filing Date: 2018-12
Publication Date: 2019-05
Patent Classification: ["303", "115200"]

Abstract:
The invention relates to an improved plunger assembly for a vehicle brake system. The plunger assembly is operable as a pressure source to control brake fluid pressure supplied to one or more wheel brakes. The plunger assembly comprises a housing defining a cylinder; a reversible motor supported by the housing and having a rotor; and a linear actuator such as a ball screw/nut mechanism driven by the motor. A plunger head is mounted in the cylinder and driven by the linear actuator in first and second opposite directions. Improvements include an elastomeric tubular torque coupler connected to a ball screw/nut anti-rotation member; and a clamped connection at an inner race of a motor bearing for securing the rotor to the ball screw/nut component.

Claim (Index 1):
A plunger assembly for a vehicle brake system, the plunger assembly operable as a pressure source to control brake fluid pressure supplied to one or more wheel brakes, the plunger assembly comprising:\n a housing defining a cylinder having a first port; a reversible motor supported by the housing and having a rotor; a linear actuator driven by the motor, including a ball screw mechanism having a screw and a nut, one of the screw and the nut defining a rotatable component connected to the motor rotor, and the other one of the screw and the nut defining a translatable component; an anti-rotation member coupled to the translatable component to allow translation and resist rotation of the translatable component within the housing; a plunger head mounted in the cylinder and driven by the translatable component in first and second opposite directions, the plunger head cooperating with the cylinder to define a first chamber containing brake fluid received from a fluid reservoir, wherein the first chamber is hydraulically connected to the wheel brakes via the first port, and wherein in at least one operating mode fluid pressure in the first chamber is increased when the plunger head is moved in the first direction and is decreased when the plunger head is moved in the second direction; and wherein the anti-rotation member defines the full length of travel of the translatable component and is configured to support the translatable component over the full length of travel.

Metadata:
- Claim Count in Document: 3.0
- Percentile: 98.0
- Lexical Diversity: 1.79452
- Patent Class: 303.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['13843587', '13844250', '15695215', '13147683', '14698535']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.776316124663282
- 35 USC 102 Novelty (BERT): 0.5085764289989911
- Combined Prediction Score: 0.749542155096853
- Mean Citation Score: 276.93149
- Max Citation Score: 303.26965
- Similarity Product: 225.81629802921407

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