Patent US3603048A successfully refreshed from Google Patents.
US3603048A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carpet-underfloor adapter
Assignee: Butler Manufacturing Co
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Filing: 1970-04-02
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Granted: 1971-09-07
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Expires: 1990-04-02
Abstract
Abstract A unitary piece for mounting on the cover of an electrical underfloor access unit or the cover of a junction box unit. While the adapter permits floor carpet to be installed directly over the unit and thereby preserve carpet continuity, it nevertheless provides ready access to the cover for maintenance and/or conductor installation purposes.
Inventors
- 👤 Robert W Hadfield
- 👤 William H Harding
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 06:03
CPC Classifications
E; E04; E04F; E04F19/00; E04F19/08
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
268 words
A carpet-underfloor adapter for an underfloor entrance unit which has an outer ring forming an opening, a vertically adjustable ring in the opening and a cover plate mounted on the adjustable ring, the ring providing for the cover to be adjustable so as to be flush with the floor in which the entrance unit is installed, the adapter comprising: a flat, annular base for engaging the top surface of a cover plate and extending around the peripheral edge thereof and for mounting a piece of carpet on the top of the cover; means for securing said base to said cover; a circular outer flange connected adjacent to the outer edge of said base and extending upwardly from the base, the outer flange being formed for use in extending above the floor when the adapter is mounted on the cover and the cover is adjusted flush with the floor; a circular outer lip connected to the top of said flange and extending outwardly at an acute angle thereto in a direction away from the center of the base, the lip being for use in extending over the peripheral edge of carpet installed on the floor for retaining and protecting the edge; a circular inner flange connected to said outer flange on the inside surface thereof; and a circular inner lip connected to the top of said inner flange and extending inwardly at an acute angle thereto in a direction toward the center of the base, the inner flange being for use in extending over the peripheral edge of carpet installed on the base for retaining and protecting the edge.
Claim 2
Dependent Claim
268 words
A carpet-underfloor adapter for an underfloor entrance unit which has an outer ring forming an opening, a vertically adjustable ring in the opening and a cover plate mounted on the adjustable ring, the ring providing for the cover to be adjustable so as to be flush with the floor in which the entrance unit is installed, the adapter comprising: a flat, annular base for engaging the top surface of a cover plate and extending around the peripheral edge thereof and for mounting a piece of carpet on the top of the cover; means for securing said base to said cover; a circular outer flange connected adjacent to the outer edge of said base and extending upwardly from the base, the outer flange being formed for use in extending above the floor when the adapter is mounted on the cover and the cover is adjusted flush with the floor; a circular outer lip connected to the top of said flange and extending outwardly at an acute angle thereto in a direction away from the center of the base, the lip being for use in extending over the peripheral edge of carpet installed on the floor for retaining and protecting the edge; a circular inner flange connected to said outer flange on the inside surface thereof; and a circular inner lip connected to the top of said inner flange and extending inwardly at an acute angle thereto in a direction toward the center of the base, the inner flange being for use in extending over the peripheral edge of carpet installed on the base for retaining and protecting the edge.
Claim 3
Dependent Claim
259 words
A carpet-underfloor adapter for an underfloor entrance unit which has an outer ring forming an opening, a vertically adjustable ring in the opening and a cover plate mounted on the adjustable ring, the ring providing for the cover to be adjustable so as to be flush with the floor in which the entrance unit is installed, the adapter comprising: a flat, annular base for engaging the top surface of a cover plate and extending around the peripheral edge thereof and for mounting a piece of carpet on top of the cover; means for securing said base to said cover; a circular outer flange connected adjacent to the outer edge of said base and extending upwardly from the base, the outer flange being formed for use in extending above the floor when the adapter is mounted on the cover and the cover is adjusted flush with the floor; a circular outer lip connected to the top of said flange and extending outwardly therefrom in a direction away from the center of the base, the lip being for use in extending over the peripheral edge of carpet installed on the floor for retaining and protecting the edge; a circular inner flange connected to said outer flange on the inside surface thereof; and a circulAr inner lip connected to the top of said inner flange and extending inwardly therefrom in a direction toward the center of the base, the inner flange being for use in extending over the peripheral edge of carpet installed on the base for retaining and protecting the edge.
Claim 4
Dependent Claim
259 words
A carpet-underfloor adapter for an underfloor entrance unit which has an outer ring forming an opening, a vertically adjustable ring in the opening and a cover plate mounted on the adjustable ring, the ring providing for the cover to be adjustable so as to be flush with the floor in which the entrance unit is installed, the adapter comprising: a flat, annular base for engaging the top surface of a cover plate and extending around the peripheral edge thereof and for mounting a piece of carpet on top of the cover; means for securing said base to said cover; a circular outer flange connected adjacent to the outer edge of said base and extending upwardly from the base, the outer flange being formed for use in extending above the floor when the adapter is mounted on the cover and the cover is adjusted flush with the floor; a circular outer lip connected to the top of said flange and extending outwardly therefrom in a direction away from the center of the base, the lip being for use in extending over the peripheral edge of carpet installed on the floor for retaining and protecting the edge; a circular inner flange connected to said outer flange on the inside surface thereof; and a circulAr inner lip connected to the top of said inner flange and extending inwardly therefrom in a direction toward the center of the base, the inner flange being for use in extending over the peripheral edge of carpet installed on the base for retaining and protecting the edge.
Claim 5
Dependent Claim
247 words
A carpet-underfloor adapter for use with an underfloor entrance unit of the kind which has an outer ring forming an opening, a vertically adjustable ring in the opening and a cover plate mounted on the adjustable ring, the ring provided for the cover to be adjustable so as to be flush with the floor in which the entrance unit is installed, the adapter comprising: a flat, annular base for engaging the top surface of a cover plate and extending around the peripheral edge thereof and for mounting a piece of carpet on top of the cover; means for securing said base to said cover; circular flange means connected adjacent to the outer edge of said base and extending upwardly from the base, the flange being formed for use in extending above the floor when the adapter is mounted on the cover and the cover is adjusted flush with the floor; a circular outer lip connected to the top of said flange means and extending outwardly in a direction away from the center of the base, the lip being for use in extending over the peripheral edge of carpet installed on the floor for retaining and protecting edge; and a circular inner lip connected to the top of said flange means and extending inwardly therefrom in a direction toward the center of the base, the inner flange being for use in extending over the peripheral edge of carpet installed on the base for retaining and protecting the edge.
Claim 6
Dependent Claim
247 words
A carpet-underfloor adapter for use with an underfloor entrance unit of the kind which has an outer ring forming an opening, a vertically adjustable ring in the opening and a cover plate mounted on the adjustable ring, the ring provided for the cover to be adjustable so as to be flush with the floor in which the entrance unit is installed, the adapter comprising: a flat, annular base for engaging the top surface of a cover plate and extending around the peripheral edge thereof and for mounting a piece of carpet on top of the cover; means for securing said base to said cover; circular flange means connected adjacent to the outer edge of said base and extending upwardly from the base, the flange being formed for use in extending above the floor when the adapter is mounted on the cover and the cover is adjusted flush with the floor; a circular outer lip connected to the top of said flange means and extending outwardly in a direction away from the center of the base, the lip being for use in extending over the peripheral edge of carpet installed on the floor for retaining and protecting edge; and a circular inner lip connected to the top of said flange means and extending inwardly therefrom in a direction toward the center of the base, the inner flange being for use in extending over the peripheral edge of carpet installed on the base for retaining and protecting the edge.
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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) | 1974-09-06 | 1975-03-08 | 1975-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-06 | 1979-03-08 | 1979-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-06 | 1983-03-08 | 1983-09-07 | $7700.00 | Window Closed / Lapsed |