| Patents for Barnes Drill Co. |
Patents 121 -
135
of 144
      |
| Number | Date | Patentee | Title | Type |
| 3,410,028 | Nov. 12, 1968 | M.R. Estabrook | Control of automatic abrading machines | |
| 3,447,306 | Jun. 03, 1969 | J. Zigmant | Abrading machine | |
| 3,455,066 | Jul. 15, 1969 | M.R. Estabrook | Feed rate control for abrading machines | |
| 3,456,797 | Jul. 22, 1969 | M. Roger | Apparatus and method for cleaning dirty liquid | |
| 3,466,809 | Sep. 16, 1969 | M.R. Estabrook | Machine tool traverse control | |
| 3,489,286 | Jan. 13, 1970 | M.R. Estabrook | Hydrocyclone separator with particle trap | separators |
| 3,494,474 | Feb. 10, 1970 | M.R. Estabrook | Hydrocyclone separator with vortex starter | separators |
| 3,510,890 | May 12, 1970 | M.R. Estabrook | Drycleaning and fluid decontamination apparatus and method | |
| 3,515,507 | Jun. 02, 1970 | M.R. Estabrook | Method and apparatus for decontaminating fluid with delayed filtering | |
| 3,531,403 | Sep. 29, 1970 | M.R. Estabrook | Method for decontaminating fluid | |
| 3,540,588 | Nov. 17, 1970 | M.R. Estabrook | Method and Apparatus for Cleaning Liquid | |
| 3,577,684 | May 04, 1971 | J. Zigmant | Abrading machine with steering roll and tensioned abrading belt | |
| 3,736,703 | Jun. 05, 1973 | W.F. Treder, M.R. Estabrook | Mechanism for expanding a honing tool | honing machines |
| 3,777,788 | Dec. 11, 1973 | M.R. Estabrook | Cyclone separator | separators |
| 3,840,120 | Oct. 08, 1974 | D.K. Greenberg | Apparatus for separating particles from liquid | |
