US Patent: 2,308,055 - Adjustable countersink structure


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


Quick search:	Patent number:	Patent Date:

US Patent: 2,308,055

Adjustable countersink structure

Patentee:

Stuart A. Cogsdill (exact or similar names) - Detroit, MI

USPTO Classifications:

408/112, 408/201, 408/202

Tool Categories:

metalworking machines : drilling and boring : drill bits : metalworking countersinks

woodworking tools : hand drills : drill bits : countersinks

Assignees:

Cogsdill Twist Drill Co. - Detroit, MI

Manufacturer:

Cogsdill Twist Drill Co. - Detroit, MI

Witnesses:

Unknown

Patent Dates:
Applied:	Apr. 06, 1942
Granted:	Jan. 12, 1943

Patent Pictures:

USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin

Description:

This countersink provides adjustable depth control. An example is seen marked with this patent number plus patent 2,242,510, for which this patent gives improvements.