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US4694601A Expired / Lapsed US ⏱️ 0.0 years remaining

Portable collapsible highway sign

Assignee: Dicke Tool Co
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Filing: 1985-11-18
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Granted: 1987-09-22
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Expires: 2005-11-18
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Abstract

Abstract The invention provides a portable, collapsible sign comprised of a flexible, durable panel secured to a frame of four arms pivotally attached to a rigid central web so as to fold down one direction only and form a compact bundle for storage. The arms in the extended position are in the form of a cross and hold the sign panel firmly extended. The portable sign can be quickly assembled and disassembled.

Inventors

  • 👤 Grant D. Dicke
  • 👤 Jeffrey A. Williams

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 04:44
CPC Classifications
G; G09; G09F; G09F7/00; E; E01; E01F; E01F9/00; E01F9/60; E01F9/688

Claims Analysis

Total Claims: 13
Claim 1
Independent Claim 85 words
An improved portable collapsible sign comprising: a flexible panel attached to a frame, said frame comprising four (4) rigid arms pivotably mounted to a rigid central web, releasable securing means for locking said arms to said central web in an extended position in the form of a cross and firmly holding said message panel in position, pivot means connecting each of said arms to said central web to enable each of said arms and said flexible panel to be folded down in only one direction.
Claim 2
Dependent Claim 85 words
An improved portable collapsible sign comprising: a flexible panel attached to a frame, said frame comprising four (4) rigid arms pivotably mounted to a rigid central web, releasable securing means for locking said arms to said central web in an extended position in the form of a cross and firmly holding said message panel in position, pivot means connecting each of said arms to said central web to enable each of said arms and said flexible panel to be folded down in only one direction.
Claim 3
Dependent Claim 38 words
The sign according to claim 1 whereby said arms and said flexible panel form a compact bundle when folded down and wherein said panel is fastened to the inward side of said arms in said direction of fold.
Claim 4
Dependent Claim 43 words
The sign according to claim 2 wherein said rigid central web is composed of four (4) channel sections firmly secured to a rigid plate enabling each of said arms to be pivotally mounted through one each of said channels to said central web.
Claim 5
Dependent Claim 26 words
The sign according to claim 3 wherein said fastening means are large washers and screws attached to the outer arms and inner section of the frame.
Claim 6
Dependent Claim 28 words
The sign of claim 4 wherein said releasably securing means is a spring loaded button attached to each arm engagable with a hole in the respective channel section.
Claim 7
Dependent Claim 29 words
The sign according to claim 5 wherein said pivot means are four (4) shafts one each extending horizontally through each arm and seated in each of said channel sections.
Claim 8
Dependent Claim 14 words
The sign according to claim 5 wherein it is mounted to a suitable base.
Claim 9
Dependent Claim 14 words
The sign according to claim 6 wherein said base contains a mast central support.
Claim 10
Dependent Claim 24 words
The sign according to claim 5 having a tieing means enabling the dismantled folded down sign to be tied into a compact storage bundle.
Claim 11
Dependent Claim 172 words
An improved portable collapsible sign comprising: a flexible panel, a frame comprising four (4) rigid arms attached to a rigid central web, wherein said central web is composed of four (4) channel sections firmly secured to a rigid plate enabling each of said arms to be pivotally mounted through one of said channels of said central web, fastening means attaching said message panel to said arms and said central web, releasably securing means attached to each of said arms and to protrude through a hole in each of said channel sections for locking said arms in an extended position in the form of a cross and firmly holding said message panel in position, pivot means connecting said arms to said central web to enable said arms and, said sign panel to be folded down in a single direction of fold and form a compact bundle whereby the panel is fastened to the inward side of each arm so as to be within the arms when folded and having large area fastening means.
Claim 12
Dependent Claim 172 words
An improved portable collapsible sign comprising: a flexible panel, a frame comprising four (4) rigid arms attached to a rigid central web, wherein said central web is composed of four (4) channel sections firmly secured to a rigid plate enabling each of said arms to be pivotally mounted through one of said channels of said central web, fastening means attaching said message panel to said arms and said central web, releasably securing means attached to each of said arms and to protrude through a hole in each of said channel sections for locking said arms in an extended position in the form of a cross and firmly holding said message panel in position, pivot means connecting said arms to said central web to enable said arms and, said sign panel to be folded down in a single direction of fold and form a compact bundle whereby the panel is fastened to the inward side of each arm so as to be within the arms when folded and having large area fastening means.
Claim 13
Dependent Claim 15 words
The sign according to claim 3, wherein fastening means attach said panel to said frame.

References Cited (Backward Citations)

US3899843A Cited
US4490934A Cited
US4592158A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1990-09-21 1991-03-23 1991-09-22 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1994-09-21 1995-03-23 1995-09-22 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1998-09-21 1999-03-23 1999-09-22 $7700.00 Window Closed / Lapsed

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