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US4451025A Expired / Lapsed US ⏱️ 0.0 years remaining

Hand railing assembly

Assignee: Speral Aluminium Inc
•
Filing: 1983-02-25
•
Granted: 1984-05-29
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Expires: 2003-02-25
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Abstract

Abstract A hand railing assembly is provided which can be assembled on site without the use of screws and rivets and has covers to protect the interlocking joints from rain and the like. The assembly has a hand rail, a bottom rail, a plurality of spaced apart vertical posts, each post having a top end connected to the hand rail and a lower end for mounting in a supporting device, and a plurality of vertical pickets spaced between the posts, each picket having a top end connected to the hand rail and a lower end connected to the bottom rail. The improvement comprises a hand rail support strip extending along the length of the hand rail having poles spaced apart along the length to hold the top ends of the posts and pickets, a member having a T-shaped cross section, the member having a stem with sides sloped downwards and outwards, to slide into locating slots in the top ends of the pickets and posts, the member having a top flange whose ends slide in side slots in the hand rail support strip to lock the hand rail support strip to the top ends of the posts and pickets, a hand rail cap slidingly engaging and locking the hand rail support strip to cover the hand rail support strip, the member and the top ends of the posts and pickets, a bottom rail support strip extending along the length of the bottom rail having holes spaced apart along the length to hold the posts and the lower ends of the pickets, and a member having the same T-shaped cross section as that used with the hand rail support strip, inverted to slide into locating slots in the lower ends of the pickets between the posts, the member having an inverted top flange whose ends slide in side slots in the bottom rail support strip to lock the bottom rail support strip to the lower ends of the pickets.

Inventors

  • 👤 Vittorio Spera

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 19:17
CPC Classifications
E; E04; E04F; E04F11/00; E04F11/18; E04F11/181

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 297 words
In a hand railing assembly having a hand rail, a bottom rail, a plurality of spaced apart vertical posts, each post having a top end connected to the hand rail and a lower end for mounting in a support means, a plurality of vertical pickets spaced between the posts, each picket having a top end connected to the hand rail and a lower end connected to the bottom rail, the improvement comprising, a hand rail support strip extending along the length of the hand rail having holes spaced apart along the length to hold the top ends of the posts and pickets; a member having a T-shaped cross section, the member having a stem with sides sloped downwards and outwards, to slide into locating slots in the top ends of the pickets and posts, the member having a top flange whose ends slide in side slots in the hand rail support strip to lock the hand rail support strip to the top ends of the posts and pickets; a hand rail cap slidingly engaging and locking the hand rail support strip to cover the hand rail support strip, the member and the top ends of the posts and pickets; a bottom rail support strip extending along the length of the bottom rail having holes spaced apart along the length to hold the posts and the lower ends of the pickets; and a member having the same T-shaped cross section as that used with the hand rail support strip, inverted to slide into locating slots in the lower ends of the pickets between the posts, the member having an inverted top flange whose ends slide in side slots in the bottom rail support strip to lock the bottom rail support strip to the lower ends of the pickets.
Claim 2
Dependent Claim 297 words
In a hand railing assembly having a hand rail, a bottom rail, a plurality of spaced apart vertical posts, each post having a top end connected to the hand rail and a lower end for mounting in a support means, a plurality of vertical pickets spaced between the posts, each picket having a top end connected to the hand rail and a lower end connected to the bottom rail, the improvement comprising, a hand rail support strip extending along the length of the hand rail having holes spaced apart along the length to hold the top ends of the posts and pickets; a member having a T-shaped cross section, the member having a stem with sides sloped downwards and outwards, to slide into locating slots in the top ends of the pickets and posts, the member having a top flange whose ends slide in side slots in the hand rail support strip to lock the hand rail support strip to the top ends of the posts and pickets; a hand rail cap slidingly engaging and locking the hand rail support strip to cover the hand rail support strip, the member and the top ends of the posts and pickets; a bottom rail support strip extending along the length of the bottom rail having holes spaced apart along the length to hold the posts and the lower ends of the pickets; and a member having the same T-shaped cross section as that used with the hand rail support strip, inverted to slide into locating slots in the lower ends of the pickets between the posts, the member having an inverted top flange whose ends slide in side slots in the bottom rail support strip to lock the bottom rail support strip to the lower ends of the pickets.
Claim 3
Dependent Claim 30 words
The hand railing assembly according to claim 1 wherein the member having the T-shaped cross section on the hand rail extends for the length of the hand rail support strip.
Claim 4
Dependent Claim 49 words
The hand railing assembly according to claim 1 wherein the member having the T-shaped cross section for the hand rail comprises short lengths for the top ends of the pickets and posts, and the member for the bottom rail comprises short lengths for the lower ends of the pickets.
Claim 5
Dependent Claim 20 words
The hand railing assembly according to claim 1 wherein the pickets have a substantially square cross section with concave sides.
Claim 6
Dependent Claim 20 words
The hand railing assembly according to claim 1 wherein the pickets have a substantially I-shaped cross section with concave flanges.
Claim 7
Dependent Claim 31 words
The hand railing assembly according to claim 1 including a hinge means attached to the hand rail support strip to provide a vertical change of direction for the hand railing assembly.

References Cited (Backward Citations)

CA778130A Cited
US3498589A Cited
US3689032A Cited
US3982735A Cited
US3879017A Cited
US3918686A Cited
US3858850A Cited
US3962774A Cited
US4014520A Cited
US4334671A Cited
US4390165A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1987-05-29 1987-11-28 1988-05-29 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1991-05-29 1991-11-28 1992-05-29 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1995-05-29 1995-11-28 1996-05-29 $7700.00 Window Closed / Lapsed

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