Patent US4574507A successfully refreshed from Google Patents.
US4574507A
Expired / Lapsed
US
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Street sign adaptor unit and assembly including the same
Assignee: Individual
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Filing: 1984-01-10
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Granted: 1986-03-11
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Expires: 2004-01-10
Abstract
Abstract A street sign adaptor unit and a street sign assembly for allowing use of standard V-notch perforate or cylindrical metal fence or highway sign posts to be used with standard sign panels for intersecting streets in which the adaptor unit has a varied cross-section to accommodate attachment and fixation with standard fasteners and without expensive conversion apparatus to both types of post and to sign panels.
Inventors
- 👤 Paul G. Elliott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:08
CPC Classifications
G; G09; G09F; G09F7/00; G09F7/18
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
158 words
A street sign adaptor unit for use in placement of street signs identifying intersecting streets and adaptable to both perforate metal posts of trapezoidal cross-section and cylindrical hollow metal posts, said adaptor unit comprising a lower portion having a trapezoidal cross-section for fitment within the trapezoidal cross-section of said perforate metal posts or within the top portion of said cylindrical hollow metal posts, said lower portion having means in register with the perforations of said trapezoidal cross-section perforate metal post whereby said unit is attachable to said trapezoidal cross-section perforate post and an upper portion of approximately square cross-section and being greater in area than said lower portion so that at the juncture of the said upper portion and said lower portion said upper portion extends over the largest parallel side of the trapezoidal cross-section of the lower portion forming a shoulder suitable for retaining a wedge used in fixing said adaptor unit in said cylindrical metal post.
Claim 2
Dependent Claim
158 words
A street sign adaptor unit for use in placement of street signs identifying intersecting streets and adaptable to both perforate metal posts of trapezoidal cross-section and cylindrical hollow metal posts, said adaptor unit comprising a lower portion having a trapezoidal cross-section for fitment within the trapezoidal cross-section of said perforate metal posts or within the top portion of said cylindrical hollow metal posts, said lower portion having means in register with the perforations of said trapezoidal cross-section perforate metal post whereby said unit is attachable to said trapezoidal cross-section perforate post and an upper portion of approximately square cross-section and being greater in area than said lower portion so that at the juncture of the said upper portion and said lower portion said upper portion extends over the largest parallel side of the trapezoidal cross-section of the lower portion forming a shoulder suitable for retaining a wedge used in fixing said adaptor unit in said cylindrical metal post.
Claim 3
Dependent Claim
28 words
The adaptor unit of claim 1 in which said upper portion has means for attachment of at least two sign panels at approximately right angles to each other.
Claim 4
Dependent Claim
44 words
The adaptor unit of claims 1 and 2 in which the attachment means of said upper and lower portions of said unit are further characterized as being bolt holes extending through said unit in a direction normal to the central axis through said unit.
References Cited (Backward Citations)
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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) | 1989-03-10 | 1989-09-09 | 1990-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-03-10 | 1993-09-09 | 1994-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-03-10 | 1997-09-09 | 1998-03-11 | $7700.00 | Window Closed / Lapsed |