US5170996A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Handrail assembly
Assignee: Ideal Steel and Builders Supplies Inc
•
Filing: 1991-11-27
•
Granted: 1992-12-15
•
Expires: 2011-11-27
Abstract
Abstract The handrail assembly includes at least one tubular metal stanchion, having a base and a hemispherical cap having a threaded receiver and at least a horizontal top rail. The horizontal top rail has an inner metal pipe, an outer plastic pipe, and at least one aperture for receiving the metal stanchion. Prior to assemblage, a threaded fastener is attached to the interior of the inner metal pipe opposite the aperture. Prior to insertion of the stanchion into the aperture, at least one tubular plastic sheath, having a first end conforming with the base of the stanchion and a second end conforming with the top horizontal rail, is slipped onto the tubular metal stanchion. Following placement of the top horizontal rail atop the stanchion, the sheath rests on the base of the stanchion and engages the top horizontal rail. The top horizontal rail is locked in position atop the stanchion by threading the threaded receiver and the threaded fastener together. Disassemblage of the handrail assembly is facilitated by the easy unthreading of the threaded receiver and the threaded fastener.
Inventors
- 👤 Frank Venegas, Jr.
- 👤 Wayne A. Damitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:28
CPC Classifications
E; E04; E04F; E04F11/00; E04F11/18; E04F11/181; E04F11/1817; E04F2011/1819; E04F2011/1885; E04F2011/1889; E04F2011/1897; F; F16; F16B; F16B2200/00; F16B2200/40; F16B2200/403
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
108 words
A rail assembly comprising: a vertical stanchion; at least one horizontal, tubular rail, said rail defining an aperture, said stanchion extending into said aperture; and fastener means on said horizontal tubular rail and said stanchion for threadably fastening said rail to said stanchion, said fastener means comprising: a threaded fastener on one of said rail and said stanchion, said fastener threadingly engaging the other of said rail and stanchion, said stanchion including means for defining a threaded aperture and said fastener being joined to said rail in-line with said rail aperture, wherein said stanchion includes a cap having a threaded nut attached to the interior of said cap.
Claim 2
Dependent Claim
108 words
A rail assembly comprising: a vertical stanchion; at least one horizontal, tubular rail, said rail defining an aperture, said stanchion extending into said aperture; and fastener means on said horizontal tubular rail and said stanchion for threadably fastening said rail to said stanchion, said fastener means comprising: a threaded fastener on one of said rail and said stanchion, said fastener threadingly engaging the other of said rail and stanchion, said stanchion including means for defining a threaded aperture and said fastener being joined to said rail in-line with said rail aperture, wherein said stanchion includes a cap having a threaded nut attached to the interior of said cap.
Claim 3
Dependent Claim
102 words
A rail assembly comprising: a vertical stanchion; at least one horizontal, tubular rail, said rail defining an aperture, said stanchion extending into said aperture; and fastener means on said horizontal tubular rail and said stanchion for threadably fastening said rail to said stanchion, said fastener means comprising: a threaded fastener on one of said rail and said stanchion, said fastener threadingly engaging the other of said rail and stanchion, said stanchion including means for defining a threaded aperture and said fastener being joined to said rail in-line with said rail aperture, wherein said stanchion includes a hemispherical cap having a threaded aperture.
Claim 4
Dependent Claim
102 words
A rail assembly comprising: a vertical stanchion; at least one horizontal, tubular rail, said rail defining an aperture, said stanchion extending into said aperture; and fastener means on said horizontal tubular rail and said stanchion for threadably fastening said rail to said stanchion, said fastener means comprising: a threaded fastener on one of said rail and said stanchion, said fastener threadingly engaging the other of said rail and stanchion, said stanchion including means for defining a threaded aperture and said fastener being joined to said rail in-line with said rail aperture, wherein said stanchion includes a hemispherical cap having a threaded aperture.
Claim 5
Dependent Claim
228 words
A knockdown handrail assembly comprising: at least one vertically oriented support stanchion, said stanchion including a tubular metal post having a lower end and an upper end, said upper post end including receiving means for receiving a fastener; a top horizontal rail having a top plastic pipe and a top metal pipe, said top metal pipe having an outside dimension less than or equal to the inside dimension of said top plastic pipe, said top plastic pipe having at least one aperture through one side of said top plastic pipe, said top metal pipe having at least one aperture through one side of said top metal pipe; a fastener positioned within said top metal pipe and opposite said apertures, said top metal pipe being located in said top plastic pipe such that said apertures in said respective pipes align with each other to allow fitting of said stanchion post into said aligned apertures whereby said stanchion post enters said aligned apertures and said receiving means reversibly receives said fastener; and at least one hollow plastic tubular sheath having a first end and a second end, said second end engaging said top horizontal rail, and having interior dimensions which are greater than or equal to the exterior dimensions of said stanchion post such that said sheath can be slipped over and surround the exterior surface of said stanchion post.
Claim 6
Dependent Claim
228 words
A knockdown handrail assembly comprising: at least one vertically oriented support stanchion, said stanchion including a tubular metal post having a lower end and an upper end, said upper post end including receiving means for receiving a fastener; a top horizontal rail having a top plastic pipe and a top metal pipe, said top metal pipe having an outside dimension less than or equal to the inside dimension of said top plastic pipe, said top plastic pipe having at least one aperture through one side of said top plastic pipe, said top metal pipe having at least one aperture through one side of said top metal pipe; a fastener positioned within said top metal pipe and opposite said apertures, said top metal pipe being located in said top plastic pipe such that said apertures in said respective pipes align with each other to allow fitting of said stanchion post into said aligned apertures whereby said stanchion post enters said aligned apertures and said receiving means reversibly receives said fastener; and at least one hollow plastic tubular sheath having a first end and a second end, said second end engaging said top horizontal rail, and having interior dimensions which are greater than or equal to the exterior dimensions of said stanchion post such that said sheath can be slipped over and surround the exterior surface of said stanchion post.
Claim 7
Dependent Claim
15 words
A handrail assembly in accordance with claim 3 wherein said fastener is a threaded fastener.
Claim 8
Dependent Claim
259 words
A knockdown handrail assembly comprising: at least one vertically oriented support stanchion, said stanchion including a tubular metal post having a lower end and an upper end, said upper post end including receiving means for receiving a fastener; a top horizontal rail having a top plastic pipe and a top metal pipe, said top metal pipe having an outside dimension less than or equal to the inside dimension of said top plastic pipe, said top plastic pipe having at least one aperture through one side of said top plastic pipe, said top metal pipe having at least one aperture through one side of said top metal pipe; a fastener positioned within said top metal pipe and opposite said apertures, said top metal pipe being located in said top plastic pipe such that said apertures in said respective pipes align with each other to allow fitting of said stanchion post into said aligned apertures whereby said stanchion post enters said aligned apertures and said receiving means reversibly receives said fastener; and at least one hollow plastic tubular sheath having a first end and a second end, said second end engaging said top horizontal rail, and having interior dimensions which are greater than or equal to the exterior dimensions of said stanchion post such that said sheath can be slipped over and surround the exterior surface of said stanchion post, said fastener being a threaded fastener, wherein said receiving means is a hemispherical cap positioned on said upper post end, said cap having an aperture for reversibly receiving said threaded fastener.
Claim 9
Dependent Claim
259 words
A knockdown handrail assembly comprising: at least one vertically oriented support stanchion, said stanchion including a tubular metal post having a lower end and an upper end, said upper post end including receiving means for receiving a fastener; a top horizontal rail having a top plastic pipe and a top metal pipe, said top metal pipe having an outside dimension less than or equal to the inside dimension of said top plastic pipe, said top plastic pipe having at least one aperture through one side of said top plastic pipe, said top metal pipe having at least one aperture through one side of said top metal pipe; a fastener positioned within said top metal pipe and opposite said apertures, said top metal pipe being located in said top plastic pipe such that said apertures in said respective pipes align with each other to allow fitting of said stanchion post into said aligned apertures whereby said stanchion post enters said aligned apertures and said receiving means reversibly receives said fastener; and at least one hollow plastic tubular sheath having a first end and a second end, said second end engaging said top horizontal rail, and having interior dimensions which are greater than or equal to the exterior dimensions of said stanchion post such that said sheath can be slipped over and surround the exterior surface of said stanchion post, said fastener being a threaded fastener, wherein said receiving means is a hemispherical cap positioned on said upper post end, said cap having an aperture for reversibly receiving said threaded fastener.
Claim 10
Dependent Claim
36 words
A handrail assembly in accordance with claim 5 wherein said threaded fastener is reversibly held in position in said aperture of said hemispherical cap by a threaded nut attached to the interior of said hemispherical cap.
Claim 11
Dependent Claim
23 words
A handrail assembly in accordance with claim 5 wherein said aperture of said hemispherical cap is threaded to reversibly receive said threaded fastener.
Claim 12
Dependent Claim
421 words
A knockdown handrail assembly comprising: at least one vertically oriented support stanchion, said stanchion including a tubular metal post having a lower end and an upper end, said upper post end including receiving means for receiving a fastener; a first horizontal rail having a first plastic pipe and a first metal pipe, said first metal pipe having an outside dimension less than or equal to the inside dimension of said first plastic pipe, said first plastic pipe having at least one aperture through both sides of said first plastic pipe, said first metal pipe having at least one aperture through both sides of said first metal pipe, said first metal pipe being located in said first plastic pipe such that said apertures in said respective pipes align with each other to allow fitting of said stanchion post through said aligned apertures of said first horizontal rail and placement of said first horizontal rail onto said stanchion post; at least one first hollow plastic tubular sheath having a first end and a second end, said second end engaging said first horizontal rail, and having interior dimensions which are greater than or equal to the exterior dimensions of said stanchion post such that said first sheath can be slid over and surround the exterior surface of said stanchion post and support said first horizontal rail; a top horizontal rail having a top plastic pipe and a top metal pipe, said top metal pipe having an outside dimension less than or equal to the inside dimension of said top plastic pipe, said top plastic pipe having at least one aperture through one side of said top plastic pipe, said top metal pipe having at least one aperture through one side of said top metal pipe; a fastener positioned within said top metal pipe and opposite said apertures, said top metal pipe being inserted in said top plastic pipe such that said apertures in said respective pipes align with each other to allow fitting of said stanchion post into said aligned apertures of said top horizontal rail whereby said stanchion post enters said aligned apertures and said receiving means reversibly receives said fastener; and at least one second hollow plastic tubular sheath having a first end on said first horizontal rail, a second end engaging said top horizontal rail, and having interior dimensions which are greater than or equal to the exterior dimensions of said stanchion post such that said second sheath can be slipped over and surround the exterior surface of said stanchion post.
Claim 13
Dependent Claim
421 words
A knockdown handrail assembly comprising: at least one vertically oriented support stanchion, said stanchion including a tubular metal post having a lower end and an upper end, said upper post end including receiving means for receiving a fastener; a first horizontal rail having a first plastic pipe and a first metal pipe, said first metal pipe having an outside dimension less than or equal to the inside dimension of said first plastic pipe, said first plastic pipe having at least one aperture through both sides of said first plastic pipe, said first metal pipe having at least one aperture through both sides of said first metal pipe, said first metal pipe being located in said first plastic pipe such that said apertures in said respective pipes align with each other to allow fitting of said stanchion post through said aligned apertures of said first horizontal rail and placement of said first horizontal rail onto said stanchion post; at least one first hollow plastic tubular sheath having a first end and a second end, said second end engaging said first horizontal rail, and having interior dimensions which are greater than or equal to the exterior dimensions of said stanchion post such that said first sheath can be slid over and surround the exterior surface of said stanchion post and support said first horizontal rail; a top horizontal rail having a top plastic pipe and a top metal pipe, said top metal pipe having an outside dimension less than or equal to the inside dimension of said top plastic pipe, said top plastic pipe having at least one aperture through one side of said top plastic pipe, said top metal pipe having at least one aperture through one side of said top metal pipe; a fastener positioned within said top metal pipe and opposite said apertures, said top metal pipe being inserted in said top plastic pipe such that said apertures in said respective pipes align with each other to allow fitting of said stanchion post into said aligned apertures of said top horizontal rail whereby said stanchion post enters said aligned apertures and said receiving means reversibly receives said fastener; and at least one second hollow plastic tubular sheath having a first end on said first horizontal rail, a second end engaging said top horizontal rail, and having interior dimensions which are greater than or equal to the exterior dimensions of said stanchion post such that said second sheath can be slipped over and surround the exterior surface of said stanchion post.
Claim 14
Dependent Claim
16 words
A handrail assembly in accordance with claim 8 wherein said fastening means is a threaded fastener.
Claim 15
Dependent Claim
33 words
A handrail assembly in accordance with claim 9 wherein said receiving means is a hemispherical cap positioned on said upper post end, said cap having an aperture for reversibly receiving said threaded fastener.
Claim 16
Dependent Claim
36 words
A handrail assembly in accordance with claim 10 wherein said threaded fastener is reversibly held in position in said aperture of said hemispherical cap by a threaded nut attached to the interior of said hemispherical cap.
Claim 17
Dependent Claim
23 words
A handrail assembly in accordance with claim 10 wherein said aperture of said hemispherical cap is threaded to reversibly receive said threaded fastener.
References Cited (Backward Citations)
US1452875A
Cited
US2603455A
Cited
US2927513A
Cited
US2780440A
Cited
US2946568A
Cited
US3385617A
Cited
US3519292A
Cited
US3963218A
Cited
US3776520A
Cited
GB2011007A
Cited
US4461461A
Cited
US4516756A
Cited
US4540160A
Cited
US4892292A
Cited
US4702459A
Cited
US4750713A
Cited
US4953830A
Cited
US4930754A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-12-15 | 1996-06-15 | 1996-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-12-15 | 2000-06-15 | 2000-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-12-15 | 2004-06-15 | 2004-12-15 | $7700.00 | Window Closed / Lapsed |