US5502943A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Display frame
Assignee: Optima Graphics Inc
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Filing: 1994-12-09
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Granted: 1996-04-02
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Expires: 2014-12-09
Abstract
Abstract A display frame work is described in terms of a display header, with upper and lower horizontal tubes and vertical end tubes to define a rectangular frame to which a flexible cloth, paper or plastic header panel is attached. Each of the horizontal members has a central hinge with a horizontal pintle from which leaves extend in opposite directions when the device is assembled. One of the leaves is fixed in a central tube; the other is constructed to permit the tube to which it is mounted to slide toward and away from the pintle. The fixed leaf has a locking tab projecting beyond the pintle, and the sliding travel of the tube that is slidably mounted is from a position clear of the locking tab to one embracing the locking tab. Outboard end sections of the horizontal members are hinged to the central tube members in a way similar to that of the two central tubes, but on hinges pintles of which are oriented perpendicularly to the central member hinge pintle. The tubes are hollow and open ended. The vertical end members have, projecting at right angles from the vertical end members, fingers that extend into the open ends of the outboard sections of the horizontal members. The vertical end pieces have, at one end, a hook, pivotally mounted on a knuckle carried by a leaf mounted on one side surface of the vertical end member.
Inventors
- 👤 Paul D. Hoffmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:04
CPC Classifications
F; F16; F16C; F16C11/00; F16C11/04; F16C11/10; G; G09; G09F; G09F15/00; G09F15/0006; G09F15/0012; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32008; Y10T403/32057; Y10T403/32073
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
219 words
A display frame comprising central horizontal tubes and vertical tubes, rectangular in transverse cross section said central horizontal tubes comprising two tube sections, a sliding tube section and a fixed tube section, mounted on leaves of a hinge, said hinge leaves having a pintle-receiving knuckle on a long edge of each leaf, said knuckle extending outward from said tube and a pintle mounted in and connecting said knuckles, outboard of said tube, about which said leaves rotate; said sliding tube section being mounted for sliding movement along a part of a pair of parallel first leaves on which it is mounted and said fixed tube section being fixed with respect to a pair of parallel second leaves on which it is mounted, said second leaves having a locking tab, of a size to be received in a recess of said sliding tube section, projecting past said pintle with respect to the leaf on which it is mounted, parallel with said leaf, whereby, when said leaves are aligned and parallel, said sliding tube section can be slid toward said fixed tube section, over and around said locking tab, and when said sliding tube section is slid clear of said locking tab, the two central tube sections can be folded to lie substantially flat against flat side surfaces of one another.
Claim 2
Dependent Claim
219 words
A display frame comprising central horizontal tubes and vertical tubes, rectangular in transverse cross section said central horizontal tubes comprising two tube sections, a sliding tube section and a fixed tube section, mounted on leaves of a hinge, said hinge leaves having a pintle-receiving knuckle on a long edge of each leaf, said knuckle extending outward from said tube and a pintle mounted in and connecting said knuckles, outboard of said tube, about which said leaves rotate; said sliding tube section being mounted for sliding movement along a part of a pair of parallel first leaves on which it is mounted and said fixed tube section being fixed with respect to a pair of parallel second leaves on which it is mounted, said second leaves having a locking tab, of a size to be received in a recess of said sliding tube section, projecting past said pintle with respect to the leaf on which it is mounted, parallel with said leaf, whereby, when said leaves are aligned and parallel, said sliding tube section can be slid toward said fixed tube section, over and around said locking tab, and when said sliding tube section is slid clear of said locking tab, the two central tube sections can be folded to lie substantially flat against flat side surfaces of one another.
Claim 3
Dependent Claim
27 words
The frame of claim 1 wherein said tube sections have square frame ends that abut when said sliding tube section is slid against said fixed tube section.
Claim 4
Dependent Claim
248 words
The frame of claim 1 including at least one horizontal outboard tube section, rectangular in transverse cross section, mounted on an outboard tube section hinge with a pintle oriented perpendicularly to the pintle of the central horizontal tube sections, said outboard tube section hinge having first leaf means having a part extending into an open end of said central tube section and said outboard section hinge having second leaf means extending into an open end of said outboard tube section, one of said outboard tube section and said central tube section being slidably mounted on one of said leaf means, and the other of said outboard tube section and said central tube section being fixed to the other of said leaf means, the leaf means to which the tube section is fixed having a locking tab projecting from it beyond an end of said other, fixed tube section and beyond said pintle, whereby said sliding tube section can be slid toward said fixed tube section over and around said locking tab, at which condition the outboard tube section and central tube section are aligned, and when the said sliding tube section is slid clear of said locking tab, the outboard tube section can be folded over its adjacent central tube section to cause a substantially flat outboard tube section surface to lie substantially flat against a substantially flat surface of said adjacent central tube section perpendicular to a surface against which said central tube sections lie when folded.
Claim 5
Dependent Claim
26 words
The frame of claim 3 wherein said central tube section is the slidably mounted tube section, and said outboard tube is the fixedly mounted tube section.
Claim 6
Dependent Claim
19 words
The frame of claim 3 whereon outboard tube sections are mounted at both ends of said central tube sections.
Claim 7
Dependent Claim
46 words
The framework of claim 5 wherein outer ends of said outboard tube sections are open and mitered, and said vertical tubes have, adjacent opposite ends thereof, fingers adapted to be slid into said open outer ends of said outboard tube sections to form a rectangular framework.
Claim 8
Dependent Claim
18 words
The framework of claim 6 wherein both of said vertical tubes have, adjacent an upper end, a hanger.
Claim 9
Dependent Claim
64 words
The framework of claim 7 wherein the hanger comprises a hook, said hook having a stem, mounted for rotation in a boss carried by said vertical tube, and a hook arm at an end of said stem, adapted to swing from a position substantially against a flat surface of a finger of said vertical tube to a position at right angles to said frame.
Claim 10
Dependent Claim
29 words
The frame of claim 6 wherein said central, outboard section and vertical tubes all have a flat face with channels running lengthwise of said tubes, of the same configuration.
Claim 11
Dependent Claim
41 words
The frame of claim 9 wherein a frame magnetic strip is seated in a channel of each of said tubes and a header of flexible material is provided with a magnetic strip configured and dimensioned to engage said framework magnetic strip.
Claim 12
Dependent Claim
41 words
The frame of claim 10 wherein the frame channel is of a depth with respect to the magnetic strip seated in it to permit a header to lie within an ambit of a rib defining an outer margin of the frame.
Claim 13
Dependent Claim
61 words
The frame of claim 1 wherein the first parallel leaves are spaced to define a channel between them and are connected by a bridging part at a place remote from the knuckle, and a stop pin is fixedly mounted in and extends between top and bottom walls of the sliding tube section and extends within a channel between said first leaves.
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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) | 1999-04-02 | 1999-10-02 | 2000-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-04-02 | 2003-10-02 | 2004-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-04-02 | 2007-10-02 | 2008-04-02 | $7700.00 | Window Closed / Lapsed |