Patent US5281093A successfully refreshed from Google Patents.
US5281093A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fan blade cover
Assignee: Individual
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Filing: 1992-10-08
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Granted: 1994-01-25
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Expires: 2012-10-08
Abstract
Abstract A fan blade cover for use on fans having a plurality of fan blades, where one size cover fits many sizes and contours of fan blades. The cover includes a sleeve manufactured from a flexible material in a tubular configuration where one end of the sleeve is closed and an opposite end is open for mounting the cover on the fan blade. The open end of the sleeve includes a zipper for closing the open end to securely maintain the cover on the fan blade during fan operation. An alternate embodiment includes a clasp and drawstring to secure the fan blade cover in place.
Inventors
- 👤 Lois M. Sedlak
- 👤 Doris A. Prucha
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:06
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/70; F04D29/701; F04D29/703; F04D29/26; F04D29/32; F04D29/38
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
184 words
A cover for a fan blade of a ceiling fan and which fan blade is supported by a shaft, said cover comprising: a tubular casing having an internal surface for form fitting engagement with said fan blade when in a mounted position; said casing having an elongated opening at one end extending in a direction substantially parallel to a longitudinal axis of said tubular casing, said opening for mounting the tubular casing on said fan blade, and said casing having a closed end spaced from the opening for covering a distal end of said fan blade; and a single zipper coupled to the casing along the elongated opening of said casing for enlarging the opening to enable the tubular casing to be slipped over the fan blade and to close the opening along the longitudinal extent of the zipper and for a portion of the opening to at least partially encircle the shaft of the fan blade to prevent movement of said casing and to maintain said casing internal surface in form fitting engagement with said fan blade during operation of said ceiling fan.
Claim 2
Dependent Claim
184 words
A cover for a fan blade of a ceiling fan and which fan blade is supported by a shaft, said cover comprising: a tubular casing having an internal surface for form fitting engagement with said fan blade when in a mounted position; said casing having an elongated opening at one end extending in a direction substantially parallel to a longitudinal axis of said tubular casing, said opening for mounting the tubular casing on said fan blade, and said casing having a closed end spaced from the opening for covering a distal end of said fan blade; and a single zipper coupled to the casing along the elongated opening of said casing for enlarging the opening to enable the tubular casing to be slipped over the fan blade and to close the opening along the longitudinal extent of the zipper and for a portion of the opening to at least partially encircle the shaft of the fan blade to prevent movement of said casing and to maintain said casing internal surface in form fitting engagement with said fan blade during operation of said ceiling fan.
Claim 3
Dependent Claim
25 words
A cover of claim 1 wherein said tubular casing is fabricated from a flexible material that stretches to fit multiple fan blade sizes and contours.
Claim 4
Dependent Claim
47 words
The cover of claim 1 wherein said end of said tubular casing adjacent said elongated opening has closed axial end seams at laterally spaced locations on opposite sides of said elongated opening for engaging a surface of the fan blade located on opposite sides of the shaft.
Claim 5
Dependent Claim
33 words
The cover of claim 3 wherein each of said closed axial end seams is closed along the entire extent of the seam from the lateral edge of said tubular casing to said opening.
Claim 6
Dependent Claim
144 words
A cover for a fan blade of a ceiling fan and which fan blade is supported by a shaft, said cover comprising: an elongated envelope constructed from a single layer of elastic material closed at one end and having an elongated opening extending along a portion of the envelope in a direction substantially parallel to a longitudinal axis of said elongated envelope for slipping the cover over said fan blade; and a single zipper having opposed rows of corresponding engageable taps secured to the elastic material along the elongated opening and a closure device for causing the opposed rows to engage each other along the extend of said zipper and close said opening by bringing opposite sides of said elongated opening together to at least partially encircle the shaft with a portion of the opening and thereby secure the cover to a fan blade.
Claim 7
Dependent Claim
144 words
A cover for a fan blade of a ceiling fan and which fan blade is supported by a shaft, said cover comprising: an elongated envelope constructed from a single layer of elastic material closed at one end and having an elongated opening extending along a portion of the envelope in a direction substantially parallel to a longitudinal axis of said elongated envelope for slipping the cover over said fan blade; and a single zipper having opposed rows of corresponding engageable taps secured to the elastic material along the elongated opening and a closure device for causing the opposed rows to engage each other along the extend of said zipper and close said opening by bringing opposite sides of said elongated opening together to at least partially encircle the shaft with a portion of the opening and thereby secure the cover to a fan blade.
Claim 8
Dependent Claim
13 words
The fan blade cover of claim 5 wherein the elastic material comprises spandex.
Claim 9
Dependent Claim
18 words
The fan blade cover of claim 6 wherein the material comprises at least 85% of a segmented polyurethane.
Claim 10
Dependent Claim
47 words
The cover of claim 5 wherein said end of said elongated envelope adjacent said elongated opening has closed axial end seams at laterally spaced locations on opposite sides of said elongated opening for engaging a surface of the fan blade located on opposite sides of the shaft.
Claim 11
Dependent Claim
147 words
A fan blade cover comprising: a flexible tubular casing having an internal surface for form fitting engagement with a fan blade of a ceiling fan when in a mounted position; said casing having an opening at one end of the casing for allowing said casing to be slipped onto said fan blade and a closed end spaced from the opening and associated with a distal end of said fan blade; a drawstring coupled to the casing along the opening of said casing first end for allowing the opening to be enlarged to slip the casing over the fan blade and contracted to secure the casing to the fan blade; and a clasp mounted to an outer surface of the tubular casing to fix the drawstring in a stretched position for maintaining said casing internal surface in engagement with said fan blade during operation of said ceiling fan.
Claim 12
Dependent Claim
147 words
A fan blade cover comprising: a flexible tubular casing having an internal surface for form fitting engagement with a fan blade of a ceiling fan when in a mounted position; said casing having an opening at one end of the casing for allowing said casing to be slipped onto said fan blade and a closed end spaced from the opening and associated with a distal end of said fan blade; a drawstring coupled to the casing along the opening of said casing first end for allowing the opening to be enlarged to slip the casing over the fan blade and contracted to secure the casing to the fan blade; and a clasp mounted to an outer surface of the tubular casing to fix the drawstring in a stretched position for maintaining said casing internal surface in engagement with said fan blade during operation of said ceiling fan.
Claim 13
Dependent Claim
20 words
The fan blade cover of claim 9 wherein the casing forms a hem around the opening to support the drawstring.
Claim 14
Dependent Claim
32 words
The fan blade cover of claim 9 wherein the drawstring comprises an elastic material that stretches as it is tightened to contract the opening to secure the casing to the fan blade.
Claim 15
Dependent Claim
34 words
The cover of claim 8 wherein each of said closed axial end seams is closed along the entire extent of the seam from the lateral edge of said tubular casing to said elongated opening.
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) | 1997-01-24 | 1997-07-26 | 1998-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-01-24 | 2001-07-26 | 2002-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-01-24 | 2005-07-26 | 2006-01-25 | $7700.00 | Window Closed / Lapsed |