Patent US4842035A successfully refreshed from Google Patents.
US4842035A
Expired / Lapsed
US
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Space divider and framing members therefor
Assignee: SINGER SAFETY COMPANY CHICAGO ILLINOIS A CORP OF ILLINOIS
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Filing: 1987-07-20
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Granted: 1989-06-27
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Expires: 2007-07-20
Abstract
Abstract A free standing screen-like space divider which is portable is provided particularly for use as a welding screen and which may consist of one or more sections with plural sections being pivotally interconnected, the divider frame including improved and versatile framing members. The framing members include corner frame members which are of tubular configuration having first and second tube portions positioned at right angles to one another and provided with outwardly projecting threaded nuts fixed to outer surfaces of the tube portions adjacent opposite ends thereof and surrounding openings in the tube portions, which openings are aligned with the threaded portions of the nuts to receive thumb screws therethrough into the interior of the tube portions to engage and releasably fix another tube-like member forming a part of the frame and being telescopically received within the tube portions.
Inventors
- 👤 Owen Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:26
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/74; E04B2/7407; E04B2/7416; E04B2/7422; E04B2/7427; E04B2/7431
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
210 words
A space divider comprising: at least a pair of frames formed from primary and secondary frame members, said primary frame members forming the corners of said frame and said secondary frame members at least interconnecting said primary frame members to complete each of said pair of frames; said pair of frames being aligned in side-by-side relationship, each said primary frame member having threaded nut means attached to the external surface of said primary member, said nut means defining a raised bearing surface at an end thereof; hinge means interconnecting pairs of primary frame members to permit pivoting of said pair of frames relative to each other, an end of said hinge means slidably engaging said raised bearing surface of said nut means; and said hinge means includes a double collar and has a collar section slidingly received about each of said pair of frames and between said raised bearing surface of said threaded nut means and an outwardly projecting bearing surface means of at least one of said frames, said bearing surface means and said nut means being on said frames in sufficiently spaced relation for receiving said collar section therebetween; whereby said interconnected pair of primary frame members are freely rotatable relative to each other about said hinge means.
Claim 2
Dependent Claim
210 words
A space divider comprising: at least a pair of frames formed from primary and secondary frame members, said primary frame members forming the corners of said frame and said secondary frame members at least interconnecting said primary frame members to complete each of said pair of frames; said pair of frames being aligned in side-by-side relationship, each said primary frame member having threaded nut means attached to the external surface of said primary member, said nut means defining a raised bearing surface at an end thereof; hinge means interconnecting pairs of primary frame members to permit pivoting of said pair of frames relative to each other, an end of said hinge means slidably engaging said raised bearing surface of said nut means; and said hinge means includes a double collar and has a collar section slidingly received about each of said pair of frames and between said raised bearing surface of said threaded nut means and an outwardly projecting bearing surface means of at least one of said frames, said bearing surface means and said nut means being on said frames in sufficiently spaced relation for receiving said collar section therebetween; whereby said interconnected pair of primary frame members are freely rotatable relative to each other about said hinge means.
Claim 3
Dependent Claim
18 words
The space divider of claim 1, wherein said set screw is in the form of a thumb screw.
Claim 4
Dependent Claim
80 words
The space divider of claim 1, wherein said nut means are attached to each said primary frame member of said interconnected pair of primary frame members so that said nut means project in opposite directions and are oriented in a coplanar relation when said pair of primary frame members are pivoted into a coplanar relation, said coplanar relation between said nut means preventing relative interference of movement when said pair of primary frame members are rotated within said hinge means.
Claim 5
Dependent Claim
22 words
The space divider of claim 1, wherein said bearing surface is a boss which extends 360 degrees around said primary frame member.
Claim 6
Dependent Claim
79 words
The space divider of claim 4, wherein said nut means are attached to said primary frame member of said interconnected pair of primary frame members so that said nut means project in opposite directions and are oriented in a coplanar relation when said pair of primary frame members are pivoted into a coplanar relation, said coplanar relation between said nut means preventing relative interference of movement when said pair of primary frame members are rotated within said hinge means.
Claim 7
Dependent Claim
34 words
The space divider of claim 1, wherein the primary frame members defining the bottom corners of said frame are provided with depending leg members for elevation of said frame relative to a supporting surface.
Claim 8
Dependent Claim
81 words
The space divider of claim 6, wherein: said leg memebers include threaded nut means affixed thereto; openings through said leg members, said openings being in alignment with the threaded portion of said nut means associated with each said leg member to permit threadedly advanced communication of a set screw through said nut means and into the interior of said leg members to clamp a telescopically received leg portion within said leg member; and a set screw carried by said nut means.
Claim 9
Dependent Claim
20 words
The space divider of claim 1, wherein said bearing surface means is another nut means having a raised bearing surface.
Claim 10
Dependent Claim
142 words
A corner frame member for use in building a screen for sub-dividing space, said frame member comprising: a tube having first and second tube portions positioned at right angles to one another; an opening extending through the side wall of said tube adjacent opposite ends thereof; a threaded nut fixed to outer surface portions of said tube surrounding each of said openings with the threaded portion of each nut in alignment with an opening, said threaded nut defining a bearing surface at an end thereof; a thumb screw threadedly received in the threaded portion of each nut for advancement and retraction therethrough into and out of an aligned opening; and a hinge collar assembly slidingly received about said first tube portion, said hinge collar assembly being located adjacent to said threaded nut to slidably engage said bearing surface of said threaded nut.
Claim 11
Dependent Claim
142 words
A corner frame member for use in building a screen for sub-dividing space, said frame member comprising: a tube having first and second tube portions positioned at right angles to one another; an opening extending through the side wall of said tube adjacent opposite ends thereof; a threaded nut fixed to outer surface portions of said tube surrounding each of said openings with the threaded portion of each nut in alignment with an opening, said threaded nut defining a bearing surface at an end thereof; a thumb screw threadedly received in the threaded portion of each nut for advancement and retraction therethrough into and out of an aligned opening; and a hinge collar assembly slidingly received about said first tube portion, said hinge collar assembly being located adjacent to said threaded nut to slidably engage said bearing surface of said threaded nut.
Claim 12
Dependent Claim
56 words
The corner frame member of claim 9, wherein a tubular leg member depends from said second tube portion, said leg member being provided with an opening through the sidewall of said leg member, a threaded nut affixed to said leg member and aligned over said opening, and a thumb screw threadedly received within said threaded nut.
Claim 13
Dependent Claim
88 words
The corner frame members of claim 9, wherein: a pair of frame members are aligned in side-by-side relationship with said first tube portions of said pair of frame members being arranged parallel to each other; said hinge collar assembly hingedly interconnecting said parallel first tube portions of said pair of frame members; and a boss formed in said first tube portions and positioned thereon to confine said hinge means between said boss and said bearing surface for pivoting of said pair of frame members relative to each other.
Claim 14
Dependent Claim
76 words
The corner frame member of claim 11, wherein each said threaded nut is positioned on one of said frame members to project outwardly therefrom such that said threaded nut on said pair of frame members are oriented in a coplanar relation when said frame members are pivoted into a coplanar relationship, said coplanar relationship between said nut means preventing relative interference of movement when said pair of primary frame members are rotated within said hinge means.
Claim 15
Dependent Claim
18 words
The corner frame member of claim 11, wherein said boss extends 360 degrees around said first tube portion.
Claim 16
Dependent Claim
56 words
The corner frame members of claim 13, wherein a tubular leg member depends from said second tube portion, said leg member being provided with an opening through the sidewall of said leg member, a threaded nut affixed to said leg member and aligned over said opening, and a thumb screw threadedly received within said threaded nut.
Claim 17
Dependent Claim
74 words
The corner frame member of claim 14, wherein said threaded nuts are positioned on said pair of frame members to project outwardly such that said threaded nuts on said pair of frame members are oriented in a coplanar relation when said frame members are pivoted into a coplanar relationship, said coplanar relationship between said nut means preventing relationship interference of movement when said pair of primary frame members are rotated within said hinge means.
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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) | 1992-06-26 | 1992-12-26 | 1993-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-06-26 | 1996-12-26 | 1997-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-06-26 | 2000-12-26 | 2001-06-27 | $7700.00 | Window Closed / Lapsed |