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US 5,347,737 AGranted
Portable sign
OwnerClarence J. Theobald, IIIinventor
Life of this patent
Estimating the term…
Abstract
A portable sign includes at least three elongated members interconnected by collapsible members and can be collapsed to fit into a shipping tube.
Claims17
A portable sign, comprising:
- a sign frame, including
- at least three elongated members each having a maximum width;
- and
- a plurality of collapsible members interconnecting said elongated members in such a way that, when said collapsible members are extended, said elongated members are parallel to each other and each adjacent pair of elongated members defines a plane, such that said at least three elongated members defines at least three different planes, and when said collapsible members are collapsed, said elongated members are parallel to each other and lie adjacent to each other such that the collapsed sign frame has a narrow, elongated shape with a maximum cross-sectional dimension which is less than the total of the maximum widths of each of the elongated members,
- wherein said sign, with the collapsible members in the extended position, is self-supporting, when said parallel elongated members are resting on the ground in a vertical position.
2 more elements
A portable sign, comprising:
- a sign frame, including
- at least three elongated members each having a maximum width;
- and
- a plurality of collapsible members interconnecting said elongated members in such a way that, when said collapsible members are extending, said elongated members are parallel to each other and each adjacent pair of elongated members defines a plane, such that said at least three elongated members define at least three different planes, and when said collapsible members are collapsed, said elongated members are parallel to each other and lie adjacent to each other such that the collapsed sign frame has a narrow, elongated shape with a maximum cross-sectional dimension which is less than the total of the maximum widths of each of the elongated members,
- and further comprising a flexible cover portion, which fits over said sign frame and includes means for attaching the cover to said sign frame, wherein said flexible cover portion can be folded or rolled up to fit into a shipping tube.
2 more elements
A portable sign, comprising:
- at least three elongated members of approximately equal length;
- and
- a plurality of collapsible members connected at their ends to the elongated members, each of said collapsible connecting members defining a collapsed position and an extended position;
- wherein, when all the collapsible members are in the extended position, the elongated members are parallel to each other, and define at least three different planes, and, when all the collapsible members are in the collapsed position, the rigid members are parallel to each other with the angles between the elongated members being the same in the extended and collapsed positions but with the distances between the elongated members being large in the extended position and small or zero in the collapsed position.
1 more element
A portable sign, comprising:
- three elongated members, each having an L-shaped cross section so that each elongated member has a first leg portion and a second leg portion, with each of the elongated members defining an outer surface and an inner surface;
- a plurality of collapsible members, each of said collapsible members pivotably fastened at one end to the inside of a first leg portion of one elongated member and at the other end to the inside of a second leg portion of the adjacent elongated member, each of said collapsible members defining an internal pivot point, so that, in order to extend or collapse, the ends of each collapsible member pivot away from each other or toward each other about the internal pivot point;
- wherein, when said collapsible members are extended, said elongated members are parallel to each other, and, when said collapsible members are collapsed, said elongated members are parallel to each other.
Dependencies are inferred from the claim text.