US4556184A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extendible ceiling hook
Assignee: Individual
•
Filing: 1983-08-08
•
Granted: 1985-12-03
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Expires: 2003-08-08
Abstract
Abstract An extendible ceiling hook comprises an apparatus for suspending a hanging plant at various distances from a ceiling for the purposes of ease of maintenance, appearance and the general well being of the plant. An extension line, wound on an extension spool inside the extendible ceiling hook may be reeled in or out or made to rest at a desired distance from the ceiling by raising or lowering the suspended plant pot in a controlled fashion. The suspended plant can also be easily rotated to any desired angle to fully exploit any available sunlight and further enhance its appearance.
Inventors
- 👤 Daniel J. O'Sullivan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:52
CPC Classifications
F; F21; F21V; F21V21/00; F21V21/14; F21V21/16; F21V21/18; E; E04; E04B; E04B9/00; E04B9/006
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
130 words
An extendible ceiling hook, comprising an extension spool rotatable upon an axle mounted inside an assembly housing sealed with an assembly housing seal, the rotation of said extension spool being governed by a spring; an extension line secured to said extension spool and wound around said extension spool, exiting from said assembly housing at an opening and with an extension line grip secured thereto at a point outside said assembly housing; a notch and stop bar arrangement inside said assembly housing which permits said extension spool to rotate with speed but prevents said extension spool from rotation in a direction which would allow said extension line to unwind from said extension spool when the rotational speed of said extension spool is slow; a securing shaft protruding from said assembly housing.
Claim 2
Dependent Claim
130 words
An extendible ceiling hook, comprising an extension spool rotatable upon an axle mounted inside an assembly housing sealed with an assembly housing seal, the rotation of said extension spool being governed by a spring; an extension line secured to said extension spool and wound around said extension spool, exiting from said assembly housing at an opening and with an extension line grip secured thereto at a point outside said assembly housing; a notch and stop bar arrangement inside said assembly housing which permits said extension spool to rotate with speed but prevents said extension spool from rotation in a direction which would allow said extension line to unwind from said extension spool when the rotational speed of said extension spool is slow; a securing shaft protruding from said assembly housing.
Claim 3
Dependent Claim
34 words
An extendible ceiling hook as recited in claim 1, wherein said spring includes a spiral portion having outer end anchored to said extension spool and inner end anchored to said axle and assembly housing.
Claim 4
Dependent Claim
47 words
An extendible ceiling hook as recited in claim 1, wherein said notch and stop bar arrangement is a plurality of notches cut in said extension spool and the stop bar is loosely mounted to said assembly housing and said assembly housing seal and parallel to said axle.
Claim 5
Dependent Claim
17 words
An extendible ceiling hook as recited in claim 1, wherein said notch is a plurality of notches.
Claim 6
Dependent Claim
120 words
An extension device comprising: an extension spool rotatably mounted inside a housing for receiving an extension line secured to the extension spool and wound around the extension spool; a spring connected to the housing and to the extension spool for biasing the rotation of the extension spool towards a direction that winds up the extension line when the extension line is secured to the spool; and notch and stop bar means connected to the housing and to the extension spool, which means permits the extension spool to rotate in either direction through 360° when the rotational speed of the extension spool is sufficiently fast, but prevents rotation through 360° when the rotational speed of the extension spool is sufficiently slow.
Claim 7
Dependent Claim
120 words
An extension device comprising: an extension spool rotatably mounted inside a housing for receiving an extension line secured to the extension spool and wound around the extension spool; a spring connected to the housing and to the extension spool for biasing the rotation of the extension spool towards a direction that winds up the extension line when the extension line is secured to the spool; and notch and stop bar means connected to the housing and to the extension spool, which means permits the extension spool to rotate in either direction through 360° when the rotational speed of the extension spool is sufficiently fast, but prevents rotation through 360° when the rotational speed of the extension spool is sufficiently slow.
References Cited (Backward Citations)
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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) | 1988-12-02 | 1989-06-03 | 1989-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-12-02 | 1993-06-03 | 1993-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-12-02 | 1997-06-03 | 1997-12-03 | $7700.00 | Window Closed / Lapsed |