US4607974A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wand and wand extension
Assignee: Kirsch Inc
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Filing: 1984-02-27
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Granted: 1986-08-26
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Expires: 2004-02-27
Abstract
Abstract A wand for adjusting window blinds comprises at least two wand sections. The first wand section is an elongated rod having a hook at one end for attachment to a mechanism for adjusting a window blind. A connection means comprising four longitudinally extending lobes is arranged at the other end of the first wand section. A second wand section comprises also an elongated rod having four fingers at one end thereof designed such that the fingers interengage between the four lobes of the first wand section to releasably and non-pivotably interconnect the two wand sections. Small teeth located on the sides of the fingers engage in notches formed in the lobes to maintain the two wand sections in engagement. Additional wand sections, similar to the second wand section, can be added to the second wand section to further lengthen the blind adjusting wand.
Inventors
- 👤 Michael V. Brothers
- 👤 Bruce W. Schaeffer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:12
CPC Classifications
E; E06; E06B; E06B9/00; E06B9/56; E06B9/68; E06B9/76; Y; Y10; Y10T; Y10T403/00; Y10T403/66; Y10T403/70; Y10T403/7016; Y10T403/7045; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20636; Y10T74/20732; Y10T74/20738
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
143 words
A wand for adjusting window blinds, comprising: a first wand section having means at one end for attachment to a window blind adjusting mechanism and a connection means at the other end; and a second wand section having a connection means at one end for releasably and non-pivotably interconnecting with the connection means of the first wand section and for transmitting clockwise and counterclockwise rotation to said first wand section along the longitudinal axis thereof; one of said connection means comprising a plurality of radial ribs, the other of said connection means comprising a plurality of fingers interengaging between said radial ribs; said plurality of radial ribs comprises four longitudinally extending ribs connected together and projecting radially at right angles from a longitudinally extending central axis and said plurality of fingers comprises four fingers arranged at right angles and interengageable between said ribs.
Claim 2
Dependent Claim
143 words
A wand for adjusting window blinds, comprising: a first wand section having means at one end for attachment to a window blind adjusting mechanism and a connection means at the other end; and a second wand section having a connection means at one end for releasably and non-pivotably interconnecting with the connection means of the first wand section and for transmitting clockwise and counterclockwise rotation to said first wand section along the longitudinal axis thereof; one of said connection means comprising a plurality of radial ribs, the other of said connection means comprising a plurality of fingers interengaging between said radial ribs; said plurality of radial ribs comprises four longitudinally extending ribs connected together and projecting radially at right angles from a longitudinally extending central axis and said plurality of fingers comprises four fingers arranged at right angles and interengageable between said ribs.
Claim 3
Dependent Claim
27 words
A wand according to claim 1, wherein the second wand section includes means at the other end thereof for releasably and non-pivotably interconnecting with additional wand sections.
Claim 4
Dependent Claim
42 words
A wand according to claim 1, wherein one of said plurality of ribs and plurality of fingers is provided with notches and the other of said plurality of ribs and plurality of fingers is provided with teeth for engaging in said notches.
Claim 5
Dependent Claim
33 words
A wand according to claim 1, further comprising a hollow cylindrical collar means slidable over both of said connection means when said connection means are interengaged for preventing disengagement of said connection means.
Claim 6
Dependent Claim
41 words
A wand according to claim 1, further comprising a further connection means at the other end of the second wand section, whereby a third wand section may be releasably and non-pivotably attached to the other end of the second wand section.
Claim 7
Dependent Claim
31 words
A wand according to claim 4, further comprising protuberances on said wand sections adjacent said connection means for retaining said collar over said connection means when said wand sections are interconnected.
Claim 8
Dependent Claim
18 words
A wand according to claim 1, wherein said wand sections are molded from a high impact plastic material.
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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) | 1989-08-25 | 1990-02-24 | 1990-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-08-25 | 1994-02-24 | 1994-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-08-25 | 1998-02-24 | 1998-08-26 | $7700.00 | Window Closed / Lapsed |