Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11511948 | Electromagnetic switch for sliding shoe sorter conveyor system utilizing reversed current flow in electromagnet coil | Robert Bruce Robbins, Timothy L. Johnson, Charles O. Burdine, II, Daniel Blake Robbins | 2022-11-29 |
| 11174109 | Electromagnetic switch for sliding shoe sorter conveyor system utilizing multiple electromagnetic coils | Robert Bruce Robbins, Timothy L. Johnson, Charles O. Burdine, II, Daniel Blake Robbins | 2021-11-16 |
| 6305664 | Proportional variable bleed solenoid valve with single adjustment pressure calibration and including poppet valve seal ball | Garrett R. Holmes | 2001-10-23 |
| 6068237 | Proportional variable bleed solenoid valve with single adjustment pressure calibration | Garrett R. Holmes | 2000-05-30 |