Patent US3559592A successfully refreshed from Google Patents.
US3559592A
Expired / Lapsed
US
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Extensible typewriter stand
Assignee: AgEagle Aerial Systems Inc
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Filing: 1969-01-13
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Granted: 1971-02-02
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Expires: 1989-01-13
Abstract
Abstract This specification discloses an extensible stand designed primarily for the support of typewriters. The stand comprises two complemental assemblies adjustable horizontally relative to one another. Each assembly comprises a vertical standard, a base or pedestal at the lower end of the standard, a table at the upper end of the standard, and two horizontal tubular supports. One of these supports extends laterally from the upright just below the table and the other extends laterally from the midpoint of the pedestal. The tubular supports of one assembly are telescopically received in those of the other assembly and mechanism is provided for locking these supports in an adjusted position. The present invention relates to extensible stands intended for the support of typewriters and is concerned primarily with a stand that is mobile, has a high degree of stability, is readily adjustable to accommodate a typewriter of a particular size, and is easily locked in an extended position.
Inventors
- 👤 Jose Closa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:47
CPC Classifications
A; A47; A47B; A47B21/00; A47B21/02; A47B2200/00; A47B2200/04
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
121 words
In a typewriter stand comprising two relatively adjustable units each of which includes a pedestal, a vertical standard upstanding from the midpoint of the pedestal, a table element connected centrally to the upper end of the standard, a lower horizontal supporting tube outstanding from the midpoint of the pedestal, and an upper horizontal supporting tube outstanding from the upper end of the standard; the tubes of the other one unit being telescopically received in the tubes of the other unit; mechanism for locking said tubes in an adjusted position; each pedestal is formed with a horizontal passage, each table element is formed with a horizontal passage, and an end of each horizontal supporting tube is received in one of said passages.
Claim 2
Dependent Claim
121 words
In a typewriter stand comprising two relatively adjustable units each of which includes a pedestal, a vertical standard upstanding from the midpoint of the pedestal, a table element connected centrally to the upper end of the standard, a lower horizontal supporting tube outstanding from the midpoint of the pedestal, and an upper horizontal supporting tube outstanding from the upper end of the standard; the tubes of the other one unit being telescopically received in the tubes of the other unit; mechanism for locking said tubes in an adjusted position; each pedestal is formed with a horizontal passage, each table element is formed with a horizontal passage, and an end of each horizontal supporting tube is received in one of said passages.
Claim 3
Dependent Claim
54 words
The typewriter stand of claim 1 in which each pedestal has a central depressed portion, outwardly and upwardly inclined portions integrally joined to the ends of the central portion, and horizontal ends portions integral with the ends of said inclined portions and terminating in outwardly laterally extending feet to which the casters are attached.
Claim 4
Dependent Claim
34 words
The typewriter stand of claim 2, in which the central portion of each pedestal has the shape of a wide angle with the apex of the angle located at the midpoint of the pedestal.
Claim 5
Dependent Claim
43 words
The typewriter stand of claim 1 in which the standards are of tubular construction, the pedestals have upstanding socket members receiving the lower ends of the standards, and the table elements have downwardly extending socket members receiving the upper ends of the standards.
Claim 6
Dependent Claim
27 words
The typewriter stand of claim 4 in which nylon bushings are interposed between each end of each standard and the socket member in which it is received.
Claim 7
Dependent Claim
43 words
The typewriter stand of claim 1 in which the tubular supports are of circular cross section, the passages are circular; and nylon bushings are interposed between each end of a tubular support and the wall of the passage in which it is received.
Claim 8
Dependent Claim
94 words
The typewriter stand of claim 1 in which the tubular supports of one unit have inclined ends presenting cam surfaces, together with blocks slidable in the other tubular supports and having cam surfaces engaging the cam surfaces on the first said tubular supports, a rod having one end anchored to said block and extending outwardly through the first said tubular supports and through openings in the pedestal and table element of the unit having the first said tubular supports, the outer ends of said rods being threaded, and lock nuts on said threaded ends.
Claim 9
Dependent Claim
21 words
The typewriter stand of claim 7 in which said tubular supports are circular in cross section and said block is circular.
Claim 10
Dependent Claim
36 words
The typewriter stand of claim 1 in which each table element includes a narrow central portion and laterally inwardly extending wings at the ends thereof, the outer edges of each table element having upstanding retaining flanges.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-01 | 1974-08-03 | 1975-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-01 | 1978-08-03 | 1979-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-01 | 1982-08-03 | 1983-02-02 | $7700.00 | Window Closed / Lapsed |