US4809955A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fence or railing
Assignee: LES INDUSTRIES CITADELLE INC/THE CITADELLE INDUSTRIES Inc
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Filing: 1988-05-06
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Granted: 1989-03-07
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Expires: 2008-05-06
Abstract
Abstract A fence or railing is disclosed which comprises a generally square vertical post formed, along each outer wall, with a U-shaped channel running its full length; the sidewalls of the channels defining two guide slots and the post further having a non-circular central open-ended bore. This central bore slidably and snugly receives, at its lower end, a pedestal which is fixed to a base plate. Mounted on the post is one end of an area-separation section made up of a top and a bottom horizontal rail interconnected by spaced vertical struts. The ends of the rails are inserted into one of the post channels and kept apart by flat spacer elements of identical constant cross-sections and lateral wings slid in the guide slots of the post channel. One spacer element keeps the bottom rail away from the base plate while a second spacer element separates the two rails from one another. The spacer elements have an outer face which is flush with the outer wall of the post having the channel into which the rail ends are inserted.
Inventors
- 👤 Clement Veilleux
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:55
CPC Classifications
E; E04; E04F; E04F11/00; E04F11/18; E04F11/181; E04H; E04H17/00; E04H17/14; E04H17/1413; E04H17/1417; E04H17/1447; E04H17/1452; E04H17/1456
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
238 words
A fence or railing comprising: an elongated vertical post, of essentially rectangular constant cross-section, made in one piece of extruded plastic material and formed, along the full length of each of the outer walls thereof, with an inwardly directed U-shaped channel having sidewalls defining two guide slots facing one another and extending the full length of said sidewalls; said post further having a central open-ended bore of non-circular cross-section; a support base comprising a flat plate and a pedestal upstanding from said plate, said pedestal having a non-circular cross-section like that of said post central bore and snugly fitting non-rotatably into the lower end of said bore; at least one area-separation section comprising horizontal top and bottom rails interconnected by vertical struts, wherein common ends of said rails are slidably inserted into one of said post channels; essentially flat spacer elements having identical constant cross-sections including outwardly projecting lateral wings slidably inserted in said guide slots of said one of said post channels, said spacer elements comprising: a first spacer element between said base plate and said bottom rail, supporting said bottom rail and resting on said base plate; a second spacer element between said two rails, supporting said top rail, and resting on said bottom rail, and wherein said spacer elements have an outer face falling flush with the outer wall of said post having said one channel to act as masking elements for said one channel.
Claim 2
Dependent Claim
238 words
A fence or railing comprising: an elongated vertical post, of essentially rectangular constant cross-section, made in one piece of extruded plastic material and formed, along the full length of each of the outer walls thereof, with an inwardly directed U-shaped channel having sidewalls defining two guide slots facing one another and extending the full length of said sidewalls; said post further having a central open-ended bore of non-circular cross-section; a support base comprising a flat plate and a pedestal upstanding from said plate, said pedestal having a non-circular cross-section like that of said post central bore and snugly fitting non-rotatably into the lower end of said bore; at least one area-separation section comprising horizontal top and bottom rails interconnected by vertical struts, wherein common ends of said rails are slidably inserted into one of said post channels; essentially flat spacer elements having identical constant cross-sections including outwardly projecting lateral wings slidably inserted in said guide slots of said one of said post channels, said spacer elements comprising: a first spacer element between said base plate and said bottom rail, supporting said bottom rail and resting on said base plate; a second spacer element between said two rails, supporting said top rail, and resting on said bottom rail, and wherein said spacer elements have an outer face falling flush with the outer wall of said post having said one channel to act as masking elements for said one channel.
Claim 3
Dependent Claim
76 words
A fence or railing as claimed in claim 1, comprising: at least one further area-separation section mounted in a further one of said post channels in the manner set forth in said claim 1, with respect to said at least one area-separation section, and further spacer elements slid in the guide slots of the remaining channels and extending the full length of said slots, said further spacer elements acting as masking elements for said remaining channels.
Claim 4
Dependent Claim
50 words
A fence or railing as claimed in claim 1, comprising further spacer elements, each further spacer element being slid in the guide slots of one of the remaining channels, said further spacer elements extending the full length of said guide slots and acting as masking elements for said remaining channels.
Claim 5
Dependent Claim
47 words
A fence or railing as claimed in claim 1, wherein said spacer elements further comprise a third spacer element resting on and above said top rail, and including a cap removably mounted over the top of said post, said cap extending down to said third spacer element.
Claim 6
Dependent Claim
52 words
A fence or railing as claimed in claim 3, wherein said post, outside said central bore and outside said channels, is hollowed out and wherein said base plate is pierced with holes around said pedestal and within the boundary defined by the outer walls of said post and by said spacer elements.
Claim 7
Dependent Claim
35 words
A fence or railing as claimed in claim 1, wherein each of said spacer elements comprises a hollow rectangular body and said lateral wings extend in the plane of one side only of said body.
Claim 8
Dependent Claim
35 words
A fence or railing as claimed in claim 2, wherein each of said spacer elements comprises a hollow rectangular body and said lateral wings extend in the plane of one side only of said body.
Claim 9
Dependent Claim
35 words
A fence or railing as claimed in claim 3, wherein each of said spacer elements comprises a hollow rectangular body and said lateral wings extend in the plane of one side only of said body.
Claim 10
Dependent Claim
93 words
A fence or railing as claimed in claim 1, wherein: said horizontal top and bottom rails comprise elongated U-shaped members of constant cross-sections defining chambers open at one end and having sidewalls provided with guide slots facing one another and extending the full length of said rails; the open ends of said chambers facing one another and said chambers receiving the ends of said vertical struts; said struts are held apart by essentially flat distance-pieces having identical constant cross-sections and including outwardly projecting lateral wings slidably inserted in said rail inward guide slots.
Claim 11
Dependent Claim
52 words
A fence or railing as claimed in claim 9, wherein said distance-pieces are U-shaped in cross-section with a central web and lateral flanges, said wings being provided at the free ends of said flanges and said web having an outer face falling flush with the free ends of said rail U-shaped members.
Claim 12
Dependent Claim
38 words
A fence or railing as claimed in claim 10, wherein said top rail U-shaped member is double-walled thereby defining a channel-shaped housing and wherein said fence or railing further comprises a reinforcement metal channel lodged in said housing.
Claim 13
Dependent Claim
48 words
A fence or railing as claimed in claim 10, wherein said bottom rail U-shaped member comprises: double-walled side flanges; means depending from said side flanges and defining a reinforcement housing extending the full length of said bottom rail, and a reinforcement metal channel lodged in said reinforcement housing.
Claim 14
Dependent Claim
41 words
A fence or railing as claimed in claim 1, comprising three further area-separation sections each mounted in one of the remaining post channels in the manner set forth in said claim 1 with respect to said at least one area-separation section.
Claim 15
Dependent Claim
43 words
A fence or railing as claimed in claim 9, wherein each vertical strut has, in cross-section, the shape of a hollow isosceles trapezium with inclined sides extending across said chambers of said rails; consecutive struts being inverted with respect to said inclined sides.
Claim 16
Dependent Claim
29 words
A fence or railing as claimed in claim 14, wherein said distance-pieces between said struts are cut across at the same angle as said inclined sides of said struts.
Claim 17
Dependent Claim
14 words
A fence or railing as claimed in claim 15, wherein said angle is 45°.
Claim 18
Dependent Claim
23 words
A fence or railing as claimed in claim 14, further comprising reinforcing ribs in said hollow vertical struts spanning the full length thereof.
Claim 19
Dependent Claim
29 words
A fence or railing as claimed in claim 1, wherein the width of said U-shaped channels is about at least 1/3 that of the outer walls of said post.
References Cited (Backward Citations)
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CA886862A
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US3083951A
Cited
CA1017183A
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US4346872A
Cited
US4586697A
Cited
US4623128A
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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) | 1992-03-06 | 1992-09-05 | 1993-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-03-06 | 1996-09-05 | 1997-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-03-06 | 2000-09-05 | 2001-03-07 | $7700.00 | Window Closed / Lapsed |