Patent US4258516A successfully refreshed from Google Patents.
US4258516A
Expired / Lapsed
US
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Apparatus for supporting floor plates above substrate
Assignee: Bridgestone Corp
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Filing: 1979-04-11
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Granted: 1981-03-31
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Expires: 1999-04-11
Abstract
Abstract Apparatus for supporting floor plates above substrate comprising a supporting rod threadedly engaged with an upper female screw threaded sleeve fitted in a hole provided at a corner of the floor plate and threadedly engaged with a lower female screw threaded sleeve fitted in a center hole of a cylindrical rubber-like elastic body disposed on the substrate, said supporting rod being provided at its upper end with a slot adapted to be engaged with a driving tool and the upper threads of said supporting rod being oppositely handed to the lower threads thereof.
Inventors
- 👤 Osamu Mori
- 👤 Takanao Yoshizawa
- 👤 Kozo Samata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:03
CPC Classifications
E; E04; E04F; E04F15/00; E04F15/02; E04F15/024; E04F15/02447; E04F15/02464; E04F15/0247; E04F15/02476; E04F15/02044; E04F2015/02105; E04F2015/02127
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
203 words
An apparatus for supporting floor plates above a substrate, comprising: a flat square floor plate provided at least at each corner thereof with a hole, an upper female screw threaded sleeve fitted in said hole of said floor plate, a cylindrical rubber-like elastic body having a center hole and disposed on the substrate, a lower female screw threaded sleeve fitted in said center hole of said cylindrical rubber-like elastic body and having threads oppositely handed to those of said upper female screw threaded sleeve, a supporting rod composed of a screw threaded rod provided at its upper and lower portions with right-handed and left-handed screw threads and at its upper end with a slot adapted to be engaged with and rotated by a driving tool, said right-handed and left-handed screw threads of said threaded rod being threadedly engaged with said upper and lower female screw threads of said upper and lower female screw threaded sleeves, respectively, and an annular rubber-like elastic body composed of an upper reduced diameter portion and a lower enlarged diameter portion and having a center bore extending through said upper and lower portions, said upper female screw threaded sleeve being fitted in said center bore of said elastic body.
Claim 2
Independent Claim
203 words
An apparatus for supporting floor plates above a substrate, comprising: a flat square floor plate provided at least at each corner thereof with a hole, an upper female screw threaded sleeve fitted in said hole of said floor plate, a cylindrical rubber-like elastic body having a center hole and disposed on the substrate, a lower female screw threaded sleeve fitted in said center hole of said cylindrical rubber-like elastic body and having threads oppositely handed to those of said upper female screw threaded sleeve, a supporting rod composed of a screw threaded rod provided at its upper and lower portions with right-handed and left-handed screw threads and at its upper end with a slot adapted to be engaged with and rotated by a driving tool, said right-handed and left-handed screw threads of said threaded rod being threadedly engaged with said upper and lower female screw threads of said upper and lower female screw threaded sleeves, respectively, and an annular rubber-like elastic body composed of an upper reduced diameter portion and a lower enlarged diameter portion and having a center bore extending through said upper and lower portions, said upper female screw threaded sleeve being fitted in said center bore of said elastic body.
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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) | 1984-03-30 | 1984-09-29 | 1985-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-30 | 1988-09-29 | 1989-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-30 | 1992-09-29 | 1993-03-31 | $7700.00 | Window Closed / Lapsed |