PATENT CLAIM ANALYSIS

Application Number: 15986776
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-09
Patent Classification: ["123", "090170"]

Abstract:
A hydraulically operated camshaft phasing mechanism has two lock pins. One of the lock pins engages at an intermediate position and an end lock pin engages near one of the stops at the end of the phaser range of authority. At least one of the locking pins, preferably the end lock pin, when the vane is at an end stop position, is engaged by oil pressure and spring loaded to release when the oil pressure side of the end lock pin is vented.

Claim (Index 36):
A variable cam timing mechanism for an internal combustion engine, the mechanism having a housing assembly with an outer circumference for accepting drive force and a rotor assembly for connection to a camshaft, having a plurality of vanes coaxially located within the housing, wherein the housing assembly and the rotor assembly define at least one chamber separated by a vane into an advance chamber with an advance wall and a retard chamber with a retard wall opposite the advance wall, the motion of the vane within the chamber acting to shift a relative angular position of the housing assembly and the rotor assembly by fluid from a control valve and by cam torque, the mechanism comprising:\n an end lock pin slidably located in one of the rotor assembly or the housing assembly, the end lock pin being movable from an unlocked position in which the end portion does not engage a recess in the other of the rotor assembly or the housing assembly, to a locked position in which an end portion engages the recess, locking the relative angular position of the housing assembly and the rotor assembly at a locked position;\n the end lock pin being biased by a spring toward the unlocked position; \n the locked position of the end lock pin being at an end position when the vane is in an advance end position; the control valve being movable into:\n a retard mode in which fluid is routed to the retard chamber and fluid is not routed to the end lock pin, such that the end lock pin is moved to the unlocked position by the spring; \n an advance mode in which fluid is routed to the advance chamber and fluid pressurizes the end lock pin to move toward a locked position; and \n an end stop lock mode in which fluid is routed to the advance chamber and the end lock pin is in the locked position.

Metadata:
- Claim Count in Document: 20.0
- Percentile: 93.0
- Lexical Diversity: 1.89362
- Patent Class: 123.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['14899684', '13826220', '13876217', '13773982', '15714469']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8034738074317576
- 35 USC 102 Novelty (BERT): 0.6231282203478425
- Combined Prediction Score: 0.7854392487233661
- Mean Citation Score: 525.6383900000002
- Max Citation Score: 633.38165
- Similarity Product: 627.1340662235738

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