Patent US4790440A successfully refreshed from Google Patents.
US4790440A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Revolving file with swivel base
Assignee: General Binding Corp
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Filing: 1986-10-30
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Granted: 1988-12-13
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Expires: 2006-10-30
Abstract
Abstract A card file of compact and efficient design which is fitted with a compact rotary base and separate stabilizers fastened to the bottom surface of the card file. A swivel base and stabilizers attached to the file housing provide a low profile, lighweight and efficient means by which the card file can be swivelled to any desired position in the horizontal plane. Adjusting means are also available to ensure that the stabilizing means can accommodate any irregularities in the bottom surface of the file or other object to which the swivel is attached in order to provide a proper disposition of the stabilizing elements.
Inventors
- 👤 John Leszczak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:41
CPC Classifications
B; B42; B42F; B42F17/00; B42F17/02; B42F17/08; F; F16; F16M; F16M11/00; F16M11/02; F16M11/04; F16M11/06; F16M11/08
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
84 words
A swivelable card file comprising: a card file housing having a bottom surface; a swivel base; said swivel base comprising: a top member; a bottom member; roller bearing means slideably coacting with the top member and with the bottom member; fastening means rotatably fastening the top member with the bottom member; connecting means connecting said top member to said bottom surface; and stabilizer means radially displaced from said swivel base and extending from said bottom surface to approximately the plane of said bottom member.
Claim 2
Dependent Claim
84 words
A swivelable card file comprising: a card file housing having a bottom surface; a swivel base; said swivel base comprising: a top member; a bottom member; roller bearing means slideably coacting with the top member and with the bottom member; fastening means rotatably fastening the top member with the bottom member; connecting means connecting said top member to said bottom surface; and stabilizer means radially displaced from said swivel base and extending from said bottom surface to approximately the plane of said bottom member.
Claim 3
Dependent Claim
34 words
A swivelable card file according to claim 1 wherein the stabilizer means further comprising spacer means to adjust the height of the stabilizer members relative to the bottom surface of the card file housing.
Claim 4
Dependent Claim
39 words
A swivelable card file according to claim 1 wherein the card file housing includes: an upper surface; a groove in the upper surface; and a well in the groove of the upper surface adapted to receive a writing implement.
Claim 5
Dependent Claim
171 words
A swivel base kit for swivelably supporting equipment adapted to rest on a horizontal surface comprising: a flat top member adapted to be fastened to the underside of the equipment to be supported; a bottom member; a bearing cage disposed between the top member and the bottom member; a plurality of roller bearings disposed in the bearing cage in rolling contact with the top member and the bottom member to provide relative rotation between the top member and the bottom member; connecting means connecting said top and bottom members, said connecting means comprising: a centrally disposed passage means formed in said bottom member; a fastening end formed in said top member extending through said passage means; and a fastener coacting with said fastening end to hold said members in axial alignment; and stabilizer members adapted to be fastened to the bottom of said equipment, said members comprising a top surface and feet members extending downward therefrom, the height of said members being slightly less than the height of said bottom member.
Claim 6
Dependent Claim
171 words
A swivel base kit for swivelably supporting equipment adapted to rest on a horizontal surface comprising: a flat top member adapted to be fastened to the underside of the equipment to be supported; a bottom member; a bearing cage disposed between the top member and the bottom member; a plurality of roller bearings disposed in the bearing cage in rolling contact with the top member and the bottom member to provide relative rotation between the top member and the bottom member; connecting means connecting said top and bottom members, said connecting means comprising: a centrally disposed passage means formed in said bottom member; a fastening end formed in said top member extending through said passage means; and a fastener coacting with said fastening end to hold said members in axial alignment; and stabilizer members adapted to be fastened to the bottom of said equipment, said members comprising a top surface and feet members extending downward therefrom, the height of said members being slightly less than the height of said bottom member.
Claim 7
Dependent Claim
40 words
A swivel base according to claim 4 further comprising spacer means adapted to be fastened to the stabilizer means to adjust the height of the stabilizer means to compensate for irregularities in an object to which these items are attached.
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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) | 1991-12-13 | 1992-06-13 | 1992-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-12-13 | 1996-06-13 | 1996-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-12-13 | 2000-06-13 | 2000-12-13 | $7700.00 | Window Closed / Lapsed |