Patent US3683496A successfully refreshed from Google Patents.
US3683496A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wallboard joint blade
Assignee: Individual
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Filing: 1971-01-13
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Granted: 1972-08-15
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Expires: 1991-01-13
Abstract
Abstract A broad blade for applying and trimming cement at the seams, corners, and nail holes in wallboard extends from a handle in telescope fashion, enabling the user to extend his reach to, for example, ceilings. The blade is an extension of one sliding member, which slides within a second, both contained within the handle and both engaged at stop holes along each sliding member by a pin, which the user manipulates with his thumb. The members extend from the handle, first one and then the other, in such a manner that substantial support is given to the blade, even when fully extended.
Inventors
- 👤 Ray Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:04
CPC Classifications
E; E04; E04F; E04F21/00; E04F21/165; E04F21/1652
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
84 words
A tool which extends from a handle to adjustable positions comprising, at least two elongated sliding members contained slideably within the handle, the first member being fixedly attached to the tool, said members being contained so that they slide relative to each other and relative to the handle longitudinally therein, stops disposed longitudinally along each of said members, means in the handle for engaging said stops whereby, when said means simultaneously engages a stop on each member, the tool is at a secured position.
Claim 2
Dependent Claim
84 words
A tool which extends from a handle to adjustable positions comprising, at least two elongated sliding members contained slideably within the handle, the first member being fixedly attached to the tool, said members being contained so that they slide relative to each other and relative to the handle longitudinally therein, stops disposed longitudinally along each of said members, means in the handle for engaging said stops whereby, when said means simultaneously engages a stop on each member, the tool is at a secured position.
Claim 3
Dependent Claim
37 words
A tool as in claim 1 wherein, said secured positions includes a fully retracted position and a fully extended position and at the fully retracted position all of said members are substantially totally contained within the handle.
Claim 4
Dependent Claim
23 words
A tool as in claim 2 wherein, at said fully extended position all of said members at least partially extend from the handle.
Claim 5
Dependent Claim
25 words
A tool as in claim 3 wherein, at the first secured position after the fully retracted position only said first member extends from the handle.
Claim 6
Dependent Claim
50 words
A tool as in claim 1 wherein, said stops are holes through the members at positions spaced along the members and said engaging means includes a pin which engages the stop holes at secured positions and disengages from said stop holes when the members are slideable moved between secured positions.
Claim 7
Dependent Claim
38 words
A tool as in claim 5 wherein, said pin is moveable transverse to the longitude of the members and manipulatable so as to engage stop holes of only those members which are not slideable moved between secured positions.
Claim 8
Dependent Claim
68 words
A tool as in claim 6 wherein, said stop holes are spaced along longitudinal slots in said members and are wider than the slots, the pin includes a narrow portion which fits easily in said slots and a wider portion which does not fit in said slots and a spring urges the wider portion toward the slots, whereby the wider portion moves into stop holes in registry therewith.
Claim 9
Dependent Claim
66 words
A tool as in claim 7 wherein, the sliding members nest together, all but the first defining a channel, the first being a strip which extends from the tool and each member engages the member next to it at a predetermined secured position so that each brings said next member with it when slideably moved from one secured position to the next further extended secured position.
Claim 10
Dependent Claim
41 words
A tool as in claim 8 wherein, each of said member channels are defined by upper and lower halves of the member and the wider portion of the pin fits into stop holes in the lower portions at the secured positions.
Claim 11
Dependent Claim
25 words
A tool as in claim 9 wherein, the members extend from the handle from secured position to secured position in the order of said nesting.
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) | 1975-08-15 | 1976-02-14 | 1976-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-15 | 1980-02-14 | 1980-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-15 | 1984-02-14 | 1984-08-15 | $7700.00 | Window Closed / Lapsed |