Patent US5337996A successfully refreshed from Google Patents.
US5337996A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable easel system
Assignee: Individual
•
Filing: 1993-01-14
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Granted: 1994-08-16
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Expires: 2013-01-14
Abstract
Abstract A lightweight structure for oil and acrylic painting that converts to a self-contained backpack, capable of transporting a canvas, paint supplies and the like. The structure is composed of three legs (31L, 31R, 31B) joined at the top, braced by a detachable pack frame (175) suspended between the legs near the middle, with each adjacent pair of legs crossbraced by flexible non-resilient cords (71L, 71R, 71B) between the bottom of each leg and the approximate junction between each adjacent leg and the pack frame. The system is comprehensive, including pallet (267), solvent jar (268) and brush racks (191, 193), all suspended from the pack frame exterior. All paint supplies are securely held, readily accessible from the painting position in front. The canvas is rapidly moved up and down by pivoting canvas supports (300) on the legs, and a canvas support rig (376) sliding on a mast (37) above the legs. Canvas upper corners can be stabilized with a canvas stabilizer rig. Stability in the wind is achieved by staking out the tripod from the approximate midpoint of each leg, staking out the canvas support rig, hooking the canvas to the pivoting canvas supports, and by staked-out wind rigs (584, 594) clamped to the stretcher bars. The tripod and pack can be used separately, as easel and paintbox. A box-like shell pack (600) or horizontal member (467) also can be used to brace the tripod.
Inventors
- 👤 Milton Kalish
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:09
CPC Classifications
A; A47; A47B; A47B97/00; A47B97/04
Claims Analysis
Total Claims: 32
Claim 1
Independent Claim
100 words
A portable easel system: a plurality of at least three legs, said plurality being joined at the top end and being capable of being spread at the bottom end, each of said legs being formed of a plurality of interconnecting segments; a rigid bracing member suspendable between each adjacent pair of legs for holding said legs in a fixed open position, said member being positioned approximately midway on said legs; a plurality of flexible non-resilient crossbraces coupled between the approximate bottom end of each of said legs and the approximate junction between each adjacent leg and said rigid bracing member.
Claim 2
Dependent Claim
100 words
A portable easel system: a plurality of at least three legs, said plurality being joined at the top end and being capable of being spread at the bottom end, each of said legs being formed of a plurality of interconnecting segments; a rigid bracing member suspendable between each adjacent pair of legs for holding said legs in a fixed open position, said member being positioned approximately midway on said legs; a plurality of flexible non-resilient crossbraces coupled between the approximate bottom end of each of said legs and the approximate junction between each adjacent leg and said rigid bracing member.
Claim 3
Dependent Claim
35 words
The portable easel system claimed in claim 1, wherein said crossbraces are coupled between said approximate bottom end of each of said legs and the approximate middle of each adjacent leg, close to said junction.
Claim 4
Dependent Claim
35 words
The portable easel system claimed in claim 1, wherein said crossbraces are coupled between said rigid bracing member near said junction with each of said legs, and said approximate bottom end of each adjacent leg.
Claim 5
Dependent Claim
30 words
The portable easel system claimed in claim 1, further including an elastic resilient cord traversing said segments in each leg, whereby said segments easily snap together to form said leg.
Claim 6
Dependent Claim
16 words
The portable easel system claimed in claim 4, further including means to adjust said resilient cord.
Claim 7
Dependent Claim
37 words
The portable easel system claimed in claim 1, further including means to adjust the length of said crossbraces and said legs, whereby said easel system can be adjusted for each individual painter and adapted to the terrain.
Claim 8
Dependent Claim
26 words
The portable easel system claimed in claim 1, further including means to detach at least one end of each of said crossbraces from said easel system.
Claim 9
Dependent Claim
31 words
The portable easel system claimed in claim 7, further including means to fasten the detached crossbraces to said easel system, whereby said means decrease the likelihood said detached crossbraces becoming entangled.
Claim 10
Dependent Claim
35 words
The portable easel system claimed in claim 8, wherein said means include mating strips of nylon hook and loop fastener attached to said easel system, wherein said detached crossbraces are fastened between said mating strips.
Claim 11
Dependent Claim
71 words
The portable easel system claimed in claim 1, further including means to support a canvas against two of said legs, wherein said means pivot respectively against said legs, pivoting between an attached position whereby said means are respectively fastened to said legs with a fastening means, and a detached position whereby said means respectively slide along said legs while supporting said canvas, whereby said canvas can be rapidly repositioned for painting.
Claim 12
Dependent Claim
28 words
The portable easel system claimed in claim 10, wherein said fastening means comprises mating strips of nylon hook and loop fastener attaching said supporting means to said legs.
Claim 13
Dependent Claim
27 words
The portable easel system claimed in claim 11, further including means to fasten said canvas to said supporting means, whereby said canvas is secured in the wind.
Claim 14
Dependent Claim
22 words
The portable easel system claimed in claim 11, wherein said fastening means further include means to fasten said canvas to said leg.
Claim 15
Dependent Claim
32 words
The portable easel system claimed in claim 1, wherein at least one of said legs extends above the junction of said plurality of legs to form a mast for supporting a canvas.
Claim 16
Dependent Claim
15 words
The portable easel system claimed in claim 14, further including means to stay said mast.
Claim 17
Dependent Claim
34 words
The portable easel system claimed in claim 14, wherein said mast further includes an adjustable resilient cord traversing said mast and a portion of said leg, whereby said mast is easily snapped into position.
Claim 18
Dependent Claim
62 words
The portable easel system claimed in claim 1, further including means to clamp the inside and outside edges of a canvas stretcher bar, wherein at least one member of said means hooks over the front wall of said stretcher bar, and further including a cord to join said clamping means to a fixed object, whereby said canvas is made stable for painting.
Claim 19
Dependent Claim
37 words
The portable easel system claimed in claim 17, wherein said clamping means comprises two hooks joined by a cord, seated respectively on said inside and outside edges, wherein said cord joins said hooks to said fixed object.
Claim 20
Dependent Claim
34 words
The portable easel system claimed in claim 17, wherein said clamping means is joined to a mast extending above the junction of said plurality of legs, wherein said clamping means slide along said mast.
Claim 21
Dependent Claim
40 words
The portable easel system claimed in claim 1, further including means to join said approximate junction of each of said legs and said rigid bracing member to a fixed object, whereby said easel system is made more stable for painting.
Claim 22
Dependent Claim
30 words
The portable easel system claimed in claim 1, wherein said rigid bracing member forms a portion of a pack frame, wherein said pack frame can be removed from said legs.
Claim 23
Dependent Claim
41 words
The portable easel system claimed in claim 21, further including means for holding said plurality of legs and said mast in a folded state, a canvas held against a supporting member, paint supplies and the like, and stakes, rigs and cords.
Claim 24
Dependent Claim
37 words
The portable easel system claimed in claim 21, further including means to hold all of said paint supplies and the like accessible from the painting position in front of said easel system, whereby painting is made easier.
Claim 25
Dependent Claim
25 words
The portable easel system claimed in claim 21, further including means to attach a pallet projecting in a horizontal position outward from said pack frame.
Claim 26
Dependent Claim
35 words
The pallet claimed in claim 24, wherein said pallet adjusts from said horizontal position to a vertical position, whereby the painter can work close to the canvas without removing said pallet from said easel system.
Claim 27
Dependent Claim
33 words
The portable easel system claimed in claim 22, further including means to protect at least one surface of said pallet from mechanical contact during transport, whereby mixed paint can be conserved during transport.
Claim 28
Dependent Claim
26 words
The portable easel system claimed in claim 21, further including means protect from mechanical contact the paint-charged ends of paint brushes, whereby the paints remain uncontaminated.
Claim 29
Dependent Claim
28 words
The portable easel system claimed in claim 1 wherein said rigid bracing member forms a portion of a container, wherein said container can be removed from said legs.
Claim 30
Dependent Claim
14 words
The portable easel system claimed in claim 28, wherein said container is a box.
Claim 31
Dependent Claim
20 words
The portable easel system claimed in claim 28, further including shoulder straps to transport said container strapped to a human.
Claim 32
Dependent Claim
30 words
The portable easel system claimed in claim 1, wherein said rigid bracing member forms a portion of a horizontal member, wherein said horizontal member can be removed from said legs.
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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) | 1997-08-15 | 1998-02-14 | 1998-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-08-15 | 2002-02-14 | 2002-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-08-15 | 2006-02-14 | 2006-08-16 | $7700.00 | Window Closed / Lapsed |