US4900342A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blower-filter assembly
Assignee: Individual
•
Filing: 1988-08-26
•
Granted: 1990-02-13
•
Expires: 2008-08-26
Abstract
Abstract A quick connect, disconnect connection between elements of a blower-filter system which makes use of adjacent compatible VELCRO strips on each element to be connected and a VELCRO tape which joins the two parts together by use of the VELCRO strips.
Inventors
- 👤 Charles W. Spengler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:14
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/10; B01D46/42; B01D46/4236; B01D2273/00; B01D2273/30; Y; Y10; Y10S; Y10S416/00; Y10S416/50
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
55 words
An air flow system including air flow conductors secured together in end to end axial relationship, each of said conductors being provided with a strip of axially aligned VELCRO surrounding an end portion thereof, and a VELCRO tape covering surrounding each adjoining end of said air flow conductors and covering each aligning strip of VELCRO.
Claim 2
Dependent Claim
55 words
An air flow system including air flow conductors secured together in end to end axial relationship, each of said conductors being provided with a strip of axially aligned VELCRO surrounding an end portion thereof, and a VELCRO tape covering surrounding each adjoining end of said air flow conductors and covering each aligning strip of VELCRO.
Claim 3
Dependent Claim
77 words
An air flow system including spaced air flow conductors in end-to-end axial relationship, each of said conductors being provided with a strip of axially aligned VELCRO surrounding an end portion thereof, a connector between adjoining ends of said air flow conductors, said connector having axially aligned VELCRO surrounding an end portion of each end of said connector, each of said ends of said connector connecting with said VELCRO strips on adjoining ends of said air flow conductors.
Claim 4
Dependent Claim
77 words
An air flow system including spaced air flow conductors in end-to-end axial relationship, each of said conductors being provided with a strip of axially aligned VELCRO surrounding an end portion thereof, a connector between adjoining ends of said air flow conductors, said connector having axially aligned VELCRO surrounding an end portion of each end of said connector, each of said ends of said connector connecting with said VELCRO strips on adjoining ends of said air flow conductors.
Claim 5
Dependent Claim
127 words
An air flow system including a blower and a filter unit including a filter housing including a filter material therein, means for securing said blower to a support means, means for securing said filter housing to said support means, means for connecting an output of said blower to an input of said filter unit, said means for connecting said output of said blower to said input of said filter housing including a connector means, VELCRO strips connected to one surface of an end portion said output of said blower and to one surface of an end portion of said connector means and axially aligned VELCRO strips connected to one end portion of said input of said filter housing, and to one end portion of said connector means.
Claim 6
Dependent Claim
127 words
An air flow system including a blower and a filter unit including a filter housing including a filter material therein, means for securing said blower to a support means, means for securing said filter housing to said support means, means for connecting an output of said blower to an input of said filter unit, said means for connecting said output of said blower to said input of said filter housing including a connector means, VELCRO strips connected to one surface of an end portion said output of said blower and to one surface of an end portion of said connector means and axially aligned VELCRO strips connected to one end portion of said input of said filter housing, and to one end portion of said connector means.
Claim 7
Dependent Claim
49 words
An air flow system as set forth in claim 3, which includes a top plate secured to an output end of said filter housing by VELCRO, said top plate including an outlet, an air flow conductor, said air flow conductor is connected to said top plate outlet by VELCRO.
Claim 8
Dependent Claim
59 words
An air flow system as set forth in claim 3, in which said blower is secured to a first support plate by VELCRO and said first support plate is secured to said support means by VELCRO, said filter housing is secured to a second plate by VELCRO and said second plate is secured to said support means by VELCRO.
Claim 9
Dependent Claim
48 words
An air flow system as set forth in claim 5, in which said first and second support plates each include vibration dampers on their bottom surface, and said vibration dampers include VELCRO on their bottom surface each of which are secured to compatible VELCRO on said support means.
Claim 10
Dependent Claim
49 words
An air flow system as set forth in claim 5, which includes a top plate secured to an output end of said filter housing by VELCRO, said top plate including an outlet, an air flow conductor, said air flow conductor is connected to said top plate outlet by VELCRO.
Claim 11
Dependent Claim
76 words
An air flow system as set forth in claim 7, which includes a first gasket between said filter housing and said second support plate, said first gasket is secured to said second support plate by an adhesive and said filter housing is secured to said gasket by VELCRO, said filter housing and said second gasket is secured to said top plate by an adhesive and said filter housing is secured to said second gasket by VELCRO.
Claim 12
Dependent Claim
60 words
An air flow system as set forth in claim 8, in which the top surface of said filter housing is covered by a TEFLON tape and an adhesive is placed on said TEFLON tape upon which said second gasket is secured to the TEFLON tape by said adhesive and said filter housing is secured to said second gasket by VELCRO.
Claim 13
Dependent Claim
48 words
An air flow system as set forth in claim 8, in which said first and second support plates each include vibration dampers on their bottom surface, and said vibration dampers include VELCRO on their bottom surface each of which are secured to compatible VELCRO on said support means.
Claim 14
Dependent Claim
24 words
An air flow system as set forth in claim 10, in which said vibration dampers and said gaskets are formed by closed cell material.
Claim 15
Dependent Claim
47 words
An air flow system as set forth in claim 10, in which each end-to-end connection includes VELCRO surrounding an outer surface of an adjacent end of each piece to be connected and a VELCRO tape covers the VELCRO on each adjacent end to connect said pieces together.
Claim 16
Dependent Claim
31 words
An air flow system as set forth in claim 12, in which in each overlapping connection VELCRO surrounds adjacent inner and outer surfaces of the pieces to be connected that overlap.
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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) | 1993-02-12 | 1993-08-14 | 1994-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-02-12 | 1997-08-14 | 1998-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-02-12 | 2001-08-14 | 2002-02-13 | $7700.00 | Window Closed / Lapsed |