Patent US4193585A successfully refreshed from Google Patents.
US4193585A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Handrail assembly for curved staircase
Assignee: Individual
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Filing: 1977-11-14
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Granted: 1980-03-18
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Expires: 1997-11-14
Abstract
Abstract A handrail assembly for a curved staircase, which includes baluster means having support elements adapted to connect to a handrail with connectors such as screws and a handrail formed from stranded aluminum cable coated with a continuous layer of heat-sealable plastic and connected to the support elements. Methods for splicing the handrail and mounting it on the staircase are also disclosed.
Inventors
- 👤 Roger Eandi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:23
CPC Classifications
E; E04; E04F; E04F11/00; E04F11/18; E04F11/181; E04F11/1836; E04F11/184
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
77 words
A handrail assembly for a curved staircase comprising a plurality of baluster means having support means to support a cylindrical handrail and means to accept a connector, and having means to fix said baluster means at a predetermined height above said staircase, a stranded cylindrical aluminum cable coated with flexible plastic material, said coated cable having an outside diameter at least 0.75 inches, and said cable being fastened to each of said support means with a connector.
Claim 2
Dependent Claim
77 words
A handrail assembly for a curved staircase comprising a plurality of baluster means having support means to support a cylindrical handrail and means to accept a connector, and having means to fix said baluster means at a predetermined height above said staircase, a stranded cylindrical aluminum cable coated with flexible plastic material, said coated cable having an outside diameter at least 0.75 inches, and said cable being fastened to each of said support means with a connector.
Claim 3
Dependent Claim
16 words
The handrail assembly of claim 1 wherein said connector is a screw penetrating said stranded cable.
Claim 4
Dependent Claim
21 words
The handrail assembly of claim 1 wherein said connector is a tight metal band encircling said cable and said support means.
Claim 5
Dependent Claim
24 words
The handrail assembly of claim 1 wherein said connector comprises two clamp-like elements partly encircling said stranded cable and connected to said support means.
Claim 6
Dependent Claim
12 words
The handrail assembly of claim 1 wherein said plastic material is thermoplastic.
Claim 7
Dependent Claim
12 words
The handrail assembly of claim 1 wherein said plastic material is polyvinylchloride.
Claim 8
Dependent Claim
19 words
The handrail assembly of claim 1 wherein said support means is pivoted to the top of said baluster means.
Claim 9
Dependent Claim
16 words
The handrail assembly of claim 1 wherein said support means is relieved into said plastic material.
Claim 10
Dependent Claim
23 words
The handrail assembly of claim 1 wherein the support means between consecutive baluster means at the same elevation comprises a continuous support means.
Claim 11
Dependent Claim
39 words
The handrail assembly of claim 1 including a sharp bend comprising a metal fitting, said metal fitting having the same outside diameter as said plastic-coated, stranded aluminum cable, and having said cable inserted into and fixed to said fitting.
Claim 12
Dependent Claim
14 words
The assembly of claim 10 wherein said metal fitting is coated with plastic material.
Claim 13
Dependent Claim
37 words
The handrail assembly of claim 1 including a metal end cap, said end cap having the same outside diameter as said plastic-coated, stranded aluminum cable, and having said cable inserted into and fixed to said end cap.
Claim 14
Dependent Claim
14 words
The assembly of claim 12 wherein said end cap is coated with plastic material.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-03-18 | 1983-09-17 | 1984-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-03-18 | 1987-09-17 | 1988-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-03-18 | 1991-09-17 | 1992-03-18 | $7700.00 | Window Closed / Lapsed |