US Patent: 7,171,757 - Folding Ruler


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


Quick search:	Patent number:	Patent Date:

US Patent: 7,171,757

Folding Ruler

Patentee:

J. Bruce Stoneberg (exact or similar names) - Oak Brook, DuPage & Cook Counties, IL

USPTO Classifications:

33/458, 33/465

Tool Categories:

rules : folding rules : folding rule joints

Assignees:

Learning Resources, Inc. - Vernon Hills, Lake County,, IL

Manufacturer:

Not known to have been produced

Witnesses:

none listed

Patent Dates:
Applied:	Apr. 21, 2005
Granted:	Feb. 06, 2007

Patent Pictures:

USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens

Description:

Abstract:

A folding ruler is provided. One embodiment of the folding ruler includes a first panel, a second panel, a hinge and a stiffening member. The first and second panels are interconnected end to end by the hinge so that the ruler can move between a folded state wherein the first and second panels are generally parallel and overlapping, and an unfolded state wherein the first and second panels are coplanar and oriented end to end. The stiffening member couples with the first and second panels to lock the first and second panels in the unfolded state. In some embodiments the stiffening member provides a grip for holding the ruler.

Claim:

A ruler comprising: a first panel including a top surface having a first scale thereon; a second panel including a top surface having a second scale thereon; and a generally D-shaped handle that removably couples with the first and second panels for locking said first and second panels in a first state wherein said first and second panels are coplanar and oriented end to end.