Patent US3645487A successfully refreshed from Google Patents.
US3645487A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Structural member
Assignee: Individual
•
Filing: 1969-12-04
•
Granted: 1972-02-29
•
Expires: 1989-12-04
Abstract
Abstract A structural member for removable insertion between two planar surfaces, designed to withstand eccentric loads of a magnitude less than will cause such deflection of its member as to reduce its effective length; the member comprising a column extending between two generally parallel, rigid surfaces arranged at a fixed, constant spacing; at least the upper portion of the column having a rigid structural sleeve of increasing cross-sectional dimension in an upwardly direction, the upper end of which makes positive bearing around its periphery with the upper parallel surface.
Inventors
- 👤 David W Gilchrist
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:21
CPC Classifications
E; E04; E04G; E04G25/00; E04G25/04; E04G25/06; E04G25/065
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
243 words
A structural member for removable insertion between upper and lower planar and substantially parallel surfaces, said structural member comprising: a first column member having a lower end in contact with and supported by said lower planar surface; a weight distributing plate having an upper surface flush with said upper planar surface, said upper surface of said weight distributing plate being of a size substantially larger than the diameter of said first column member; a second column member extending upwardly from said first column member and in contact with said weight distributing plate; means resiliently joining the lower portion of said second column member to the upper portion of said first column member; an auxillary support element extending between an upper portion of said first column member and outer portions of said weight distributing plate, an upper peripheral edge of said auxillary support element being in supporting relationship to said weight distributing plate, said auxillary support element having an increasing cross-sectional dimension in an upward direction between said first column member and said weight distributing plate; positioning means on the under surface of said weight distributing plate for receiving and engaging said upper peripheral edge of said auxillary support element; and adjustable means carried by said first column member and forcing said auxillary support element upwardly with respect to said first column member, whereby a rigid load-bearing structure is formed between said weight distributing plate, said auxillary support member, and said first column member.
Claim 2
Dependent Claim
243 words
A structural member for removable insertion between upper and lower planar and substantially parallel surfaces, said structural member comprising: a first column member having a lower end in contact with and supported by said lower planar surface; a weight distributing plate having an upper surface flush with said upper planar surface, said upper surface of said weight distributing plate being of a size substantially larger than the diameter of said first column member; a second column member extending upwardly from said first column member and in contact with said weight distributing plate; means resiliently joining the lower portion of said second column member to the upper portion of said first column member; an auxillary support element extending between an upper portion of said first column member and outer portions of said weight distributing plate, an upper peripheral edge of said auxillary support element being in supporting relationship to said weight distributing plate, said auxillary support element having an increasing cross-sectional dimension in an upward direction between said first column member and said weight distributing plate; positioning means on the under surface of said weight distributing plate for receiving and engaging said upper peripheral edge of said auxillary support element; and adjustable means carried by said first column member and forcing said auxillary support element upwardly with respect to said first column member, whereby a rigid load-bearing structure is formed between said weight distributing plate, said auxillary support member, and said first column member.
Claim 3
Dependent Claim
59 words
A structural member according to claim 1 and further comprising a universal movement joint between said second column member and said weight distributing plate to permit universal movement of said plate with respect to the upper end of said second column member, whereby said weight distributing plate is automatically adjusted to obtain full contact with said upper planar surface.
Claim 4
Dependent Claim
26 words
A structural member according to claim 2 and further comprising means on the lower portion of said auxillary support element to engage said first column member.
Claim 5
Dependent Claim
58 words
A structural member according to claim 3 wherein said weight distributing plate has positioning means for said upper peripheral edge of said auxillary support means such that said first column member is positioned perpendicular to said weight supporting plate when said upper peripheral edge engages said positioning means and said auxillary support element engages said first column member.
Claim 6
Dependent Claim
24 words
A structurAl member according to claim 4 wherein said positioning means comprises a downwardly extending flange on the underside of said weight distributing plate.
Claim 7
Dependent Claim
21 words
A structural member according to claim 1 wherein said auxillary support element is of a shape to inscribe a conical volume.
Claim 8
Dependent Claim
17 words
A structural member according to claim 6 wherein said auxillary support element is formed by vertical sections.
Claim 9
Dependent Claim
20 words
A structural member according to claim 1 wherein said second column member is telescopingly received within said first column member.
Claim 10
Dependent Claim
36 words
A structural member according to claim 1 wherein said adjustable forcing means comprises a collar which threadably engages said first column member, said collar having means to engage the lower ends of said auxillary support element.
Claim 11
Dependent Claim
38 words
A structural member according to claim 1 wherein said auxillary support element is formed from first and second truncated partial conical members adapted to take the form of a truncated cone when closed about said first column member.
Claim 12
Dependent Claim
28 words
A structural member according to claim 1 and further comprising a decorative cover surrounding said auxillary support element, said cover being detachably secured to said first column member.
Claim 13
Dependent Claim
241 words
A structural member for removable insertion between upper and lower planar and substantially parallel surfaces, said structural member comprising: a column member having a lower end in contact with said lower planar surface; a weight distributing plate having an upper surface flush with said upper planar surface, said upper surface of said weight distributing plate being of a size substantially larger than the diameter of said column member; an auxillary support element extending between an upper portion of said column member and an outer portion of said weight distributing plate with an upper end in contact with said weight distributing plate, said auxillary support element having an increasing cross-sectional dimension in an upward direction between said column member and said weight distributing plate, the lower end of said auxillary support element embracing said column member; means for orienting and maintaining said column member rigidly perpendicular to said weight distributing plate; said orienting and maintaining means including positioning means on said weight distributing plate for positioning and engaging the upper surface of said auxillary support element; means in a central portion of said weight distributing plate engaging the upper portion of said column member and positioning said column member so that said weight distributing plate is oriented and maintained perpendicular to said column member; and adjustable means on said column member for forcing said auxillary support member upwardly with respect to said column member and in contact with said weight distributing plate.
Claim 14
Dependent Claim
241 words
A structural member for removable insertion between upper and lower planar and substantially parallel surfaces, said structural member comprising: a column member having a lower end in contact with said lower planar surface; a weight distributing plate having an upper surface flush with said upper planar surface, said upper surface of said weight distributing plate being of a size substantially larger than the diameter of said column member; an auxillary support element extending between an upper portion of said column member and an outer portion of said weight distributing plate with an upper end in contact with said weight distributing plate, said auxillary support element having an increasing cross-sectional dimension in an upward direction between said column member and said weight distributing plate, the lower end of said auxillary support element embracing said column member; means for orienting and maintaining said column member rigidly perpendicular to said weight distributing plate; said orienting and maintaining means including positioning means on said weight distributing plate for positioning and engaging the upper surface of said auxillary support element; means in a central portion of said weight distributing plate engaging the upper portion of said column member and positioning said column member so that said weight distributing plate is oriented and maintained perpendicular to said column member; and adjustable means on said column member for forcing said auxillary support member upwardly with respect to said column member and in contact with said weight distributing plate.
Claim 15
Dependent Claim
15 words
A structural member according to claim 12 wherein said auxillary support element is conically shaped.
References Cited (Backward Citations)
US776881A
Cited
US2263138A
Cited
US2487235A
Cited
DE1193462B
Cited
US3280527A
Cited
US3327310A
Cited
US3479990A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-02-28 | 1975-08-30 | 1976-02-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-28 | 1979-08-30 | 1980-02-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-28 | 1983-08-30 | 1984-02-29 | $7700.00 | Window Closed / Lapsed |