US Patent: 1,255,081


	Home\| FAQ	Search:Advanced\|Person\|Company\| Type\|Class	Login


Quick search:	Patent number:	Patent Date:

Piston

Patentee:

George L. Cowan (exact or similar names) - East Ryegate, VT

USPTO Classifications:

254/89R, 92/183, 92/193

Tool Categories:

woodworking machines : specialty woodworking machines : wood grinding machines

Assignees:

Holyoke Machine Co. - Holyoke, MA

Manufacturer:

Not known to have been produced

Witnesses:

Unknown

Patent Dates:
Applied:	Apr. 28, 1916
Granted:	Jan. 29, 1918

Patent Pictures:

USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for Holyoke Machine Co.

Description:

"This invention relates to improvements in pistons that are designed to be used in pulp grinding machines, although I do not limit myself to the pulp grinding art."