Patent US5216822A successfully refreshed from Google Patents.
US5216822A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blow dryer air filter
Assignee: Individual
•
Filing: 1992-05-05
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Granted: 1993-06-08
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Expires: 2012-05-05
Abstract
Abstract A filtering system for inhibiting the intake of clogging material into the air inlet of a portable blow dryer includes a filter and a fastener, such as straps, connected to the filter for positioning the filter over the air inlet of the blow dryer in a removable fashion. The straps can be elastic to stretch during mounting and retract to snugly secure the filter to the air inlet openings. A pair of opposing filters can be interconnected by the straps for filtering air to dual lateral air inlets, or the filtering straps can be connected to a ring for mounting to a rear axial air inlet.
Inventors
- 👤 Silvia Madiedo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:34
CPC Classifications
F; F26; F26B; F26B21/00; F26B21/003; A; A45; A45D; A45D20/00; A45D20/04; A45D20/08; A45D20/10; A45D20/12
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
100 words
A filtering system for inhibiting the intake of clogging material into the air inlet of a portable blow dryer, said filtering device comprising: an externally mountable filter and a fastener connected to the filter for removably positioning the filter in at least a portion of the intake air flow of the blow dryer air inlet, wherein the fastener includes a plurality of straps extending from the filter to a back support member, said back support member being mountable to a side of the blow dryer housing opposed to the air inlet for securing the position of the filter when mounted.
Claim 2
Dependent Claim
100 words
A filtering system for inhibiting the intake of clogging material into the air inlet of a portable blow dryer, said filtering device comprising: an externally mountable filter and a fastener connected to the filter for removably positioning the filter in at least a portion of the intake air flow of the blow dryer air inlet, wherein the fastener includes a plurality of straps extending from the filter to a back support member, said back support member being mountable to a side of the blow dryer housing opposed to the air inlet for securing the position of the filter when mounted.
Claim 3
Dependent Claim
12 words
The filtering system according to claim 1, wherein the straps are adjustable.
Claim 4
Dependent Claim
13 words
The filtering system according to claim 2, wherein the straps include adjustable buckles.
Claim 5
Dependent Claim
13 words
The filtering system according to claim 2, wherein the straps are elastically stretchable.
Claim 6
Dependent Claim
108 words
A filtering system for inhibiting the intake of clogging material into the air inlet of a portable blow dryer, said filtering device comprising: an externally mountable filter and a fastener connected to the filter for removably positioning the filter in at least a portion of the intake air flow of the blow dryer air inlet wherein the straps are adjustable and, the back support member is a ring, whereby said ring can peripherally surround a barrel of the blow dryer and engage the handle of the blow dryer to support the positioning of the filter on a rear air inlet axially disposed at the end of the barrel.
Claim 7
Dependent Claim
108 words
A filtering system for inhibiting the intake of clogging material into the air inlet of a portable blow dryer, said filtering device comprising: an externally mountable filter and a fastener connected to the filter for removably positioning the filter in at least a portion of the intake air flow of the blow dryer air inlet wherein the straps are adjustable and, the back support member is a ring, whereby said ring can peripherally surround a barrel of the blow dryer and engage the handle of the blow dryer to support the positioning of the filter on a rear air inlet axially disposed at the end of the barrel.
Claim 8
Dependent Claim
33 words
The filtering system according to claim 2, wherein the back support member includes a second filter for inhibiting the intake of clogging material into a second air inlet of the portable blow dryer.
Claim 9
Dependent Claim
14 words
The filtering system according to claim 1, wherein the filter includes a mesh screen.
Claim 10
Dependent Claim
17 words
The filtering system according to claim 7, wherein the mesh screen has apertures approximately 0.5 mm square.
Claim 11
Dependent Claim
18 words
The filtering system according to claim 1, wherein the filter includes at least two mesh screens, overlaid angularly.
Claim 12
Dependent Claim
20 words
The filtering system according to claim 9, wherein the at least two screens are adjustable angularly relative to one another.
Claim 13
Dependent Claim
14 words
The filtering system according to claim 1, wherein the filter is cleanable and reusable.
Claim 14
Dependent Claim
12 words
The filtering system according to claim 1, wherein the filter is disposable.
Claim 15
Dependent Claim
20 words
The filtering system according to claim 1, wherein the filter includes a filtering insert removably connected to a support rim.
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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) | 1996-06-07 | 1996-12-07 | 1997-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-06-07 | 2000-12-07 | 2001-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-06-07 | 2004-12-07 | 2005-06-08 | $7700.00 | Window Closed / Lapsed |