US5040478A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bendable marker with signage protection feature
Assignee: FLEXSTAKE Inc A CORP OF TEXAS
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Filing: 1989-08-08
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Granted: 1991-08-20
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Expires: 2009-08-08
Abstract
Abstract A marker supported in the ground allows a reel-type grass mower to cut grass around the marker without requiring the removal of the marker. The marker has a flexible elastomeric element coupled between a substantially rigid shaft and a substantially rigid stake and for urging the shaft into axial alignment with the stake and for allowing a reel-type grass mower to bend the rigid shaft over at the elastomeric element to a position with a sign member substantially flat with the ground, and includes first and second raised side edges which serve to protect the signage surface of the marker from damage.
Inventors
- 👤 Robert K. Hughes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:54
CPC Classifications
A; A63; A63C; A63C19/00; A63C19/06; A63C19/062; E; E01; E01F; E01F9/00; E01F9/60; E01F9/623; E01F9/627
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
217 words
A post supported in the ground comprising: an elongated substantially rectangular sign member having first and second raised side edges, and a signage surface disposed therebetween with said first and second raised side edges extending outward from said signage surface, said sign member terminating at one end in a substantially rigid shaft with a lower end which has a width exceeding its thickness; a substantially rigid stake for insertion into said ground, having an upper end which has a width exceeding its thickness, disposed substantially level with the surface of the ground when said rigid stake is inserted therein; and a flexible elastomeric sleeve having a width exceeding its thickness and having an upper end which is inserted over said lower end of said substantially rigid shaft and a lower end extending below and inserted over said upper end of said substantially rigid stake for urging said substantially rigid shaft into axial alignment with said substantially rigid stake and for allowing said post to bend at said elastomeric element in directions perpendicular to said widths of said rigid shaft, rigid stake and elastomeric element to a position substantially flat with the ground wherein said first and second raised side edges operate to protect said signage surface from damage when said post is bent at said elastomeric element.
Claim 2
Dependent Claim
217 words
A post supported in the ground comprising: an elongated substantially rectangular sign member having first and second raised side edges, and a signage surface disposed therebetween with said first and second raised side edges extending outward from said signage surface, said sign member terminating at one end in a substantially rigid shaft with a lower end which has a width exceeding its thickness; a substantially rigid stake for insertion into said ground, having an upper end which has a width exceeding its thickness, disposed substantially level with the surface of the ground when said rigid stake is inserted therein; and a flexible elastomeric sleeve having a width exceeding its thickness and having an upper end which is inserted over said lower end of said substantially rigid shaft and a lower end extending below and inserted over said upper end of said substantially rigid stake for urging said substantially rigid shaft into axial alignment with said substantially rigid stake and for allowing said post to bend at said elastomeric element in directions perpendicular to said widths of said rigid shaft, rigid stake and elastomeric element to a position substantially flat with the ground wherein said first and second raised side edges operate to protect said signage surface from damage when said post is bent at said elastomeric element.
Claim 3
Dependent Claim
28 words
A post supported in the ground according to claim 1, wherein said first and second raised side edges are integrally formed with said elongated substantially rectangular sign member.
Claim 4
Dependent Claim
37 words
A post supported in the ground according to claim 1, further comprising an oval-shaped spine integrally formed with said signage surface and disposed along a central longitudinal axis thereof, for providing structural strength to said sign member.
Claim 5
Dependent Claim
37 words
A post according to claim 1, wherein a clearance exists between said lower end of said rigid shaft and said upper end of said rigid stake to facilitate bending to a position substantially flat with the ground.
Claim 6
Dependent Claim
279 words
A post supported in the ground at a surface comprising: an elongated substantially rectangular sign member having first and second raised edges, and a signage surface disposed therebetween with a spine integrally formed with said signage surface and disposed along a central longitudinal axis, and with said first and second raised side edges extending outward from said signage surface and spine, said sign member in tapered at one end to terminate in a substantially rigid shaft which has a width exceeding its thickness and which is formed substantially entirely from said spine; a substantially rigid stake for insertion into said ground, having an upper end which has a width exceeding its thickness and which is disposed substantially level with the surface when said rigid stake is inserted therein; and an elastomeric sleeve having a width exceeding its thickness and which is disposed between said substantially rigid shaft and said substantially rigid stake and having an upper end inserted over said lower end of said substantially rigid shaft and a lower end extending below and inserted over said upper end of said substantially rigid stake, with a clearance located between said lower end of said shaft and said upper end of said stake, said elastomeric sleeve urging said substantially rigid shaft to an upright position substantially normal to the surface of said ground and allowing said post to bend at said elastomeric sleeve in directions perpendicular to said widths and assume any position between said upright position and a position substantially parallel to said surface wherein said first and second raised side edges serve to protect said signage surface from damage when said post is bent at said elastomeric element.
Claim 7
Dependent Claim
279 words
A post supported in the ground at a surface comprising: an elongated substantially rectangular sign member having first and second raised edges, and a signage surface disposed therebetween with a spine integrally formed with said signage surface and disposed along a central longitudinal axis, and with said first and second raised side edges extending outward from said signage surface and spine, said sign member in tapered at one end to terminate in a substantially rigid shaft which has a width exceeding its thickness and which is formed substantially entirely from said spine; a substantially rigid stake for insertion into said ground, having an upper end which has a width exceeding its thickness and which is disposed substantially level with the surface when said rigid stake is inserted therein; and an elastomeric sleeve having a width exceeding its thickness and which is disposed between said substantially rigid shaft and said substantially rigid stake and having an upper end inserted over said lower end of said substantially rigid shaft and a lower end extending below and inserted over said upper end of said substantially rigid stake, with a clearance located between said lower end of said shaft and said upper end of said stake, said elastomeric sleeve urging said substantially rigid shaft to an upright position substantially normal to the surface of said ground and allowing said post to bend at said elastomeric sleeve in directions perpendicular to said widths and assume any position between said upright position and a position substantially parallel to said surface wherein said first and second raised side edges serve to protect said signage surface from damage when said post is bent at said elastomeric element.
Claim 8
Dependent Claim
26 words
A post supported in the ground at a surface according to claim 5, wherein said spine comprises an oval-shaped spine with a central longitudinal cavity therethrough.
Claim 9
Dependent Claim
29 words
A post according to claim 3, wherein said widths of said shaft and said stake exceed said thicknesses for substantially the entire length of said shaft and said stake.
Claim 10
Dependent Claim
35 words
A post according to claim 3, further comprising a substantially flat sign member on said shaft having a width that exceeds its length and which is parallel with the widths of said shaft and stake.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-08-19 | 1995-02-18 | 1995-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-08-19 | 1999-02-18 | 1999-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-08-19 | 2003-02-18 | 2003-08-20 | $7700.00 | Window Closed / Lapsed |