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Patent US4910939A successfully refreshed from Google Patents.
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US4910939A Expired / Lapsed US ⏱️ 0.0 years remaining

Construction system

Assignee: Petrus Systems Ltd
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Filing: 1986-12-16
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Granted: 1990-03-27
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Expires: 2006-12-16
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Abstract

Abstract A system for constructing staging or the like comprising beams 2,3,4,5,6 etc. (e.g. timbers) and socket elements 10,11,12,13, etc., with screws or the like to secure the beams to the socket elements. The socket elements each comprise at least three interconnected box sections for slidably receiving the beams, the box sections being open at both ends and arranged such that a first of the beams can pass through a selected one of the box sections, while at least one further beam can pass through further box sections and abut the first beam. The system generally supports cladding sheets 1, for example, for stage flooring.

Inventors

  • 👤 Sean Cavanagh

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 08:54
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/18; E04B1/26; E04B1/2604; E04B2001/2616; E04B2001/266; E04B2001/268; Y; Y10; Y10T; Y10T403/00; Y10T403/34; Y10T403/341; Y10T403/342

Claims Analysis

Total Claims: 16
Claim 1
Independent Claim 168 words
A construction system which comprises: (a) a plurality of elongate structural beams; (b) a plurality of multi-way socket elements each comprising at least three interconnected tubular box section members open at both ends, each capable of slidably receiving a said structural beam, said box section members being unobstructed right through and arranged such that a first of said structural beams can pass right through any one of said box section members without interfering with other said box section members and further ones of said structural beams can pass through respective further ones of said box section members, at least one of said further ones being arranged to abut respective edge(s) of said first structural beam; and (c) means for securing said beams to said multi-way socket elements, and wherein the elongate structural beams are timbers of substantially rectangular cross section, the box section members being fixed in, or pivotable to, mutually perpendicular orientations and wherein some of said multi-way socket elements comprise at least four box section members.
Claim 2
Dependent Claim 168 words
A construction system which comprises: (a) a plurality of elongate structural beams; (b) a plurality of multi-way socket elements each comprising at least three interconnected tubular box section members open at both ends, each capable of slidably receiving a said structural beam, said box section members being unobstructed right through and arranged such that a first of said structural beams can pass right through any one of said box section members without interfering with other said box section members and further ones of said structural beams can pass through respective further ones of said box section members, at least one of said further ones being arranged to abut respective edge(s) of said first structural beam; and (c) means for securing said beams to said multi-way socket elements, and wherein the elongate structural beams are timbers of substantially rectangular cross section, the box section members being fixed in, or pivotable to, mutually perpendicular orientations and wherein some of said multi-way socket elements comprise at least four box section members.
Claim 3
Dependent Claim 119 words
A construction system according to claim 1, in which three of said four box section members are of the same rectangular cross-section such as to receive said beams, said three being joined to form a T-shaped body in the plane of the smaller transverse edge of each of said three box section members, a fourth box section member projecting at right angles to the junction of the T, the central region of the socket being unobstructed so that a first said beam may be passed therethrough in any one of three mutually perpendicular directions, with other beams being insertable into other arms of said socket element so as to abut against said first mentioned beam at right angles thereto.
Claim 4
Dependent Claim 22 words
A construction system according to claim 2, in which some of said multi-way socket elements comprise three mutually perpendicular box section members.
Claim 5
Dependent Claim 35 words
A construction system according to claim 3, further comprising a plurality of base plates each comprising a rigid support to which is hinged a box section member capable of slidably receiving a said structural beam.
Claim 6
Dependent Claim 31 words
A construction system according to claim 4, in which the means for securing said beams to said socket elements comprise fasteners arranged to pass through apertures in said box section members.
Claim 7
Dependent Claim 90 words
A construction system according to claim 5, further comprising at least one socket comprising two box section members secured to one another at right angles, so as to leave an open central region through which a said beam may be passed, at least one of these box section members being provided with hinge components in combination with a further box section member provided with matching hinge components at either end of one face so as to enable it to be coupled at one or other side of said central region.
Claim 8
Dependent Claim 19 words
A construction system according to claim 6, further comprising cladding sheet material to be supported by said structural beams.
Claim 9
Dependent Claim 142 words
A construction system which comprises: (a) a plurality of elongate structural beams; (b) a plurality of multi-way socket elements each comprising at least three interconnected tubular box section members open at both ends, each capable of slidably receiving a said structural beam, said box section members being unobstructed right through and arranged such that a first of said structural beams can pass right through any one of said box section members without interfering with other said box section members and further ones of said structural beams can pass through respective further ones of said box section members, at least one of said further ones being arranged to abut respective edge(s) of said first structural beam; and (c) means for securing said beams to said multi-way socket elements, and wherein some of said multi-way socket elements comprise at least four box section members.
Claim 10
Dependent Claim 142 words
A construction system which comprises: (a) a plurality of elongate structural beams; (b) a plurality of multi-way socket elements each comprising at least three interconnected tubular box section members open at both ends, each capable of slidably receiving a said structural beam, said box section members being unobstructed right through and arranged such that a first of said structural beams can pass right through any one of said box section members without interfering with other said box section members and further ones of said structural beams can pass through respective further ones of said box section members, at least one of said further ones being arranged to abut respective edge(s) of said first structural beam; and (c) means for securing said beams to said multi-way socket elements, and wherein some of said multi-way socket elements comprise at least four box section members.
Claim 11
Dependent Claim 237 words
A construction system which comprises: (a) a plurality of elongated structural beams; (b) a plurality of multi-way socket elements each comprising at least three interconnected tubular box section members open at both ends, each capable of slidably receiving a said structural beam, said box section members being unobstructed right through and arranged such that a first of said structural beams can pass right through any one of said box section members without interfering with other said box section members and further ones of said structural beams can pass through respective further ones of said box section members, at least one of said further ones being arranged to abut respective edge(s) of said first structural beam; and (c) means for securing said beams to said multi-way socket elements, and wherein three of said box section members are of the same rectangular cross-section such as to receive said beams, said three being joined to form a T-shaped body in the plane of a transverse edge of each of said three box section members, a fourth box section member projecting at right angles to the junction of the T, the central region of the socket being unobstructed so that a first said beam may be passed therethrough in any one of three mutually perpendicular directions, with other beams being insertable into other arms of said socket element so as to abut against said first mentioned beam at right angles thereto.
Claim 12
Dependent Claim 237 words
A construction system which comprises: (a) a plurality of elongated structural beams; (b) a plurality of multi-way socket elements each comprising at least three interconnected tubular box section members open at both ends, each capable of slidably receiving a said structural beam, said box section members being unobstructed right through and arranged such that a first of said structural beams can pass right through any one of said box section members without interfering with other said box section members and further ones of said structural beams can pass through respective further ones of said box section members, at least one of said further ones being arranged to abut respective edge(s) of said first structural beam; and (c) means for securing said beams to said multi-way socket elements, and wherein three of said box section members are of the same rectangular cross-section such as to receive said beams, said three being joined to form a T-shaped body in the plane of a transverse edge of each of said three box section members, a fourth box section member projecting at right angles to the junction of the T, the central region of the socket being unobstructed so that a first said beam may be passed therethrough in any one of three mutually perpendicular directions, with other beams being insertable into other arms of said socket element so as to abut against said first mentioned beam at right angles thereto.
Claim 13
Dependent Claim 159 words
A construction system which comprises: (a) a plurality of elongate structural beams; (b) a plurality of multi-way socket elements each comprising at least three interconnected tubular box section members open at both ends, each capable of slidably receiving a said structural beam, said box section members being unobstructed right through and arranged such that a first of said structural beams can pass right through any one of said box section members without interfering with other said box section members and further ones of said structural beams can pass through respective further ones of said box section members, at least one of said further ones being arranged to abut respective edge(s) of said first structural beam; and (c) means for securing said beams to said multi-way socket elements, and wherein said system further comprises a plurality of base plates each comprising a rigid support to which is hinged a box section member capable of slidably receiving a said structural beam.
Claim 14
Dependent Claim 159 words
A construction system which comprises: (a) a plurality of elongate structural beams; (b) a plurality of multi-way socket elements each comprising at least three interconnected tubular box section members open at both ends, each capable of slidably receiving a said structural beam, said box section members being unobstructed right through and arranged such that a first of said structural beams can pass right through any one of said box section members without interfering with other said box section members and further ones of said structural beams can pass through respective further ones of said box section members, at least one of said further ones being arranged to abut respective edge(s) of said first structural beam; and (c) means for securing said beams to said multi-way socket elements, and wherein said system further comprises a plurality of base plates each comprising a rigid support to which is hinged a box section member capable of slidably receiving a said structural beam.
Claim 15
Dependent Claim 195 words
A construction system which comprises: (a) a plurality of elongated structural beams; (b) a plurality of multi-way socket elements each comprising at least three interconnected box section members open at both ends, each capable of slidingly receiving a said structural beam, said box section members being arranged such that a first of said structural beams can pass through a selected one of said box section members and further ones of said structural beams can pass through respective further ones of said box section members, at least one of said further ones being arranged to abut respective edge(s) of said first structural beam; (c) means for securing said beams to said socket elements; and (d) at least one socket comprising two box section members secured to one another at right angles, so as to leave an open central region through which a said beam may be passed, at least one of these box section members being provided with hinge components in combination with a further box section member provided with matching hinge components at either end of one face so as to enable it to be coupled at one or other side of said central region.
Claim 16
Dependent Claim 195 words
A construction system which comprises: (a) a plurality of elongated structural beams; (b) a plurality of multi-way socket elements each comprising at least three interconnected box section members open at both ends, each capable of slidingly receiving a said structural beam, said box section members being arranged such that a first of said structural beams can pass through a selected one of said box section members and further ones of said structural beams can pass through respective further ones of said box section members, at least one of said further ones being arranged to abut respective edge(s) of said first structural beam; (c) means for securing said beams to said socket elements; and (d) at least one socket comprising two box section members secured to one another at right angles, so as to leave an open central region through which a said beam may be passed, at least one of these box section members being provided with hinge components in combination with a further box section member provided with matching hinge components at either end of one face so as to enable it to be coupled at one or other side of said central region.

References Cited (Backward Citations)

BE659715A Cited
US1347808A Cited
US3829999A Cited
US3771273A Cited
US4630550A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1993-03-26 1993-09-25 1994-03-27 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1997-03-26 1997-09-25 1998-03-27 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2001-03-26 2001-09-25 2002-03-27 $7700.00 Window Closed / Lapsed

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