US Patent: 3,520,527 - Quick-change vise


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


Quick search:	Patent number:	Patent Date:

US Patent: 3,520,527

Quick-change vise

Patentee:

Henry Persson (exact or similar names) - Bloomfield, NJ

USPTO Classifications:

269/182, 269/73

Tool Categories:

metalworking machines : drilling and boring : drill presses : drill press accessories

work holding : vises : metalworking machine vises

Assignees:

None

Manufacturer:

Float-Lock Corp. - Bloomfield, NJ

American Machine & Foundry Co. - New York, NY

Wahlstrom Float-Lock Product Co. - Libertyville, IL

Witnesses:

Unknown

Patent Dates:
Applied:	Jul. 30, 1969
Granted:	Jul. 14, 1970

Patent Pictures:

USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Carl Matthews
"Vintage Machinery" entry for Wahlstrom Float-Lock Product Co.
"Vintage Machinery" entry for American Machine & Foundry Co.

Description:

Improvements to the original quick-release Float-Lock vise of patent 2,724,295. The main improvement is a simplified shaft clamp, and there is a safety stop to prevent the half-nut from disengaging when the clamp is tightened.