Patent US4934638A successfully refreshed from Google Patents.
US4934638A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Collapsible tripod stool
Assignee: Individual
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Filing: 1989-04-21
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Granted: 1990-06-19
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Expires: 2009-04-21
Abstract
Abstract A collapsible tripod stool for bodily and tangible item support is described. The triangularly shaped seat is supported by a plurality of tubular legs, which may be fused, glued, or otherwise connected to the corners of the seat. In one embodiment, telescoping legs are comprised of upper, central, and lower sections, the central leg section having two different diameters to prevent section contact, and being cast as one piece to eliminate welded surfaces. The central leg sections are attached to a triangularly-shaped central pivot joint by threaded members to prevent mobilization of the legs with respect to one another. The telescoping legs are angled to maximize ground surface contact and further stabilize the tripod stool of the present invention. In another embodiment, tubular legs are comprised of upper and lower sections which connect to one another and are coupled together by an elastic cord within each leg. The leg sections are conveniently detached at their approximate midpoints and folded together in a compact bundle. A pivot joint comprises fabric straps secured to each leg and centrally joined to one another.
Inventors
- 👤 Kevin R. Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:42
CPC Classifications
A; A47; A47C; A47C4/00; A47C4/28; A47C4/286; A47C9/00; A47C9/10; A47C9/105; F; F16; F16M; F16M11/00; F16M11/20; F16M11/24; F16M11/26; F16M11/32; F16M11/34; F16M2200/00; F16M2200/02; F16M2200/025; F16M2200/028; F16M2200/06; F16M2200/065
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
100 words
A collapsible tripod stool comprising: a seat; a plurality of tubular leg assemblies, each of said leg assemblies having at least an upper and a lower leg section, said leg sections including coupling means for coupling said leg sections together in axial alignment, each of said leg assemblies further having leg tensioning means for urging said leg sections together in a coupled relationship; and a central pivot joint joining said plurality of tubular leg assemblies to one another and permitting simultaneous rotation of each leg assembly about the pivot joint and rotation of each leg assembly about its respective axis.
Claim 2
Dependent Claim
100 words
A collapsible tripod stool comprising: a seat; a plurality of tubular leg assemblies, each of said leg assemblies having at least an upper and a lower leg section, said leg sections including coupling means for coupling said leg sections together in axial alignment, each of said leg assemblies further having leg tensioning means for urging said leg sections together in a coupled relationship; and a central pivot joint joining said plurality of tubular leg assemblies to one another and permitting simultaneous rotation of each leg assembly about the pivot joint and rotation of each leg assembly about its respective axis.
Claim 3
Dependent Claim
17 words
The tripod stool of claim 1 having a triangular seat and three of said tubular leg assemblies.
Claim 4
Dependent Claim
42 words
The tripod stool of claim 1 wherein said coupling means comprises a telescoping tubular member secured within one of said leg sections and extending out of one end thereof, said tubular member insertable into an end of another of said leg sections.
Claim 5
Dependent Claim
38 words
The tripod stool of claim 1 wherein said leg tensioning means comprises an elastic cord secured at one end thereof to one of said leg sections and at an opposite end thereof to another of said leg sections.
Claim 6
Dependent Claim
48 words
The tripod stool of claim 1 wherein said central pivot joint comprises a plurality of fabric straps, each of said fabric straps secured to a respective one of said leg assemblies and having at least one end joined to corresponding ends of the other of said fabric straps.
Claim 7
Dependent Claim
17 words
The tripod stool of claim 1 further comprising a carrying strap coupled to said central pivot joint.
Claim 8
Dependent Claim
27 words
The tripod stool of claim 1 further comprising strap means coupled to said seat for securing said leg assemblies in a bundle when in a collapsed configuration.
Claim 9
Dependent Claim
18 words
The tripod stool of claim 2 wherein said seat is constructed of a fabric having a triaxial weave.
Claim 10
Dependent Claim
20 words
The tripod stool of claim 2 wherein said seat is constructed of woven cord so as to have triaxial symmetry.
Claim 11
Dependent Claim
206 words
A collapsible tripod stool comprising: a triangular seat; three tubular leg assemblies, each having an upper leg section and a lower leg section, each of said upper and lower leg sections having respective upper and lower ends, said lower leg sections having a telescoping tubular member extending from said upper end thereof for insertion into said lower end of said upper leg section so as to couple said upper and lower leg sections together in axial alignment; a seat suspension bracket attached to said upper end of each of said upper leg sections, said bracket having a slot for receiving a corner of said triangular seat; a foot attached to said lower end of each of said lower leg sections; an elastic cord secured at one end thereof to said seat bracket and at an opposite end to said foot, said elastic cord extending through said upper and lower leg sections so as to urge said leg sections together in a coupled relationship; an a central pivot joint comprising three fabric straps, one secured to each of said upper leg sections adjacent to said lower end thereof and having at least one end joined to corresponding ends of the other two of said three fabric straps.
Claim 12
Dependent Claim
206 words
A collapsible tripod stool comprising: a triangular seat; three tubular leg assemblies, each having an upper leg section and a lower leg section, each of said upper and lower leg sections having respective upper and lower ends, said lower leg sections having a telescoping tubular member extending from said upper end thereof for insertion into said lower end of said upper leg section so as to couple said upper and lower leg sections together in axial alignment; a seat suspension bracket attached to said upper end of each of said upper leg sections, said bracket having a slot for receiving a corner of said triangular seat; a foot attached to said lower end of each of said lower leg sections; an elastic cord secured at one end thereof to said seat bracket and at an opposite end to said foot, said elastic cord extending through said upper and lower leg sections so as to urge said leg sections together in a coupled relationship; an a central pivot joint comprising three fabric straps, one secured to each of said upper leg sections adjacent to said lower end thereof and having at least one end joined to corresponding ends of the other two of said three fabric straps.
Claim 13
Dependent Claim
17 words
The tripod stool of claim 10 further comprising a carrying strap coupled to said central pivot joint.
Claim 14
Dependent Claim
27 words
The tripod stool of claim 10 further comprising strap means coupled to said seat for securing said leg assemblies in a bundle when in a collapsed configuration.
Claim 15
Dependent Claim
18 words
The tripod stool of claim 10, wherein said sea is constructed of a fabric having a triaxial weave.
Claim 16
Dependent Claim
20 words
The tripod stool of claim 10 wherein said seat is constructed of woven cord so as to have triaxial symmetry.
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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) | 1993-06-18 | 1993-12-18 | 1994-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-06-18 | 1997-12-18 | 1998-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-06-18 | 2001-12-18 | 2002-06-19 | $7700.00 | Window Closed / Lapsed |