Invention Grant
- Patent Title: Automated system that mechanically extracts spark plug tips containing valuable metals
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Application No.: US17865614Application Date: 2022-07-15
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Publication No.: US11548106B1Publication Date: 2023-01-10
- Inventor: Edmund Schwenk
- Applicant: PGM RECOVERY SYSTEMS, INC.
- Applicant Address: US CA Murrieta
- Assignee: PGM RECOVERY SYSTEMS, INC.
- Current Assignee: PGM RECOVERY SYSTEMS, INC.
- Current Assignee Address: US CA Murrieta
- Agency: Arc IP Law, PC
- Agent Joseph J. Mayo
- Main IPC: B23P19/00
- IPC: B23P19/00 ; B23P19/04

Abstract:
An automated, high throughput system that mechanically separates electrode tips from spark plugs to facilitate recovery of platinum group metals in the electrodes. Spark plugs may be fed into the system in bulk and an automated mechanism under computer control executes a sequence of operations to feed plugs in a fixed orientation and at a controlled rate to a robot arm. The robot arm has a gripper that securely holds a set of spark plugs and passes them across a cutting tool to separate tips from the bodies. The gripper has independently actuated finger assemblies that accommodate plugs of varying shapes. A visual inspection system ensures that spark plugs are oriented with the tips facing in the same direction to simplify operation of the robot and the cutting tool. The tips may be processed to extract the contained valuable metals; the remaining bodies may be recycled as iron scrap.
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