Patent US4420091A successfully refreshed from Google Patents.
US4420091A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Junction box
Assignee: CTS Corp
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Filing: 1982-09-20
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Granted: 1983-12-13
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Expires: 2002-09-20
Abstract
Abstract A junction box in which the frame includes a header fitted within the frame, and includes a groove closely following the inner perimeter of the box opening, and a central recess receiving a lid. A floor covering which may be either carpet or vinyl is then cut, following the outline of the groove, and the perimeter of the cut is then covered with a portion of a trim force fitted within the groove. The lid is held down and the corners of the floor covering are pulled tightly against the lid with the covering as a whole held firmly around the entire periphery of the submerged junction box.
Inventors
- 👤 Frank P. Thorpe
- 👤 Leslie O. Calhoun
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:19
CPC Classifications
H; H02; H02G; H02G3/00; H02G3/02; H02G3/08; H02G3/18; H02G3/185
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
183 words
A junction box for encasement in concrete, comprising a box having duct receiving openings and dividers therein, an outer perimeter assembly including a base section, an outer wall surface of said outer perimeter assembly adapted to abut against a concrete wall and operatively secured to said base section, a plurality of weight carrying adjusting screws each receivable in a respective threaded opening in said base section and disposed in the outer periphery at spaced locations of said base section, an inner cover assembly disposed within the area circumscribed by said outer perimeter assembly and including a header and a cover plate supported by the screws receivable in the base section and said screws selectively adjustable to effect adjustment of said inner cover assembly relative to said outer wall surface and the concrete wall, said header providing support for said cover plate and having a groove at the outer periphery thereof, and a stepped trim provided with a bottom section force fittable within said groove and a top section extending above the top of said inner cover assembly to position a floor covering therewith.
Claim 2
Dependent Claim
183 words
A junction box for encasement in concrete, comprising a box having duct receiving openings and dividers therein, an outer perimeter assembly including a base section, an outer wall surface of said outer perimeter assembly adapted to abut against a concrete wall and operatively secured to said base section, a plurality of weight carrying adjusting screws each receivable in a respective threaded opening in said base section and disposed in the outer periphery at spaced locations of said base section, an inner cover assembly disposed within the area circumscribed by said outer perimeter assembly and including a header and a cover plate supported by the screws receivable in the base section and said screws selectively adjustable to effect adjustment of said inner cover assembly relative to said outer wall surface and the concrete wall, said header providing support for said cover plate and having a groove at the outer periphery thereof, and a stepped trim provided with a bottom section force fittable within said groove and a top section extending above the top of said inner cover assembly to position a floor covering therewith.
Claim 3
Dependent Claim
34 words
The junction box in accordance with claim 1, wherein the header and cover plate have aligned openings allowing external adjustment of said screws to effect an adjusted planar position of said inner cover assembly.
Claim 4
Dependent Claim
40 words
The junction box in accordance with claim 1, further comprising a gasket and an adjustable plate disposed beneath the header and within said outer perimeter assembly, the adjustable plate having a plurality of aligned openings allowing adjustment of said screws.
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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) | 1986-12-12 | 1987-06-13 | 1987-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-12-12 | 1991-06-13 | 1991-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-12-12 | 1995-06-13 | 1995-12-13 | $7700.00 | Window Closed / Lapsed |