Patent US4905343A successfully refreshed from Google Patents.
US4905343A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum cleaner switch
Assignee: Scott Fetzer Co
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Filing: 1988-06-07
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Granted: 1990-03-06
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Expires: 2008-06-07
Abstract
Abstract A control switch is disclosed for a two-speed vacuum cleaner motor and the like. The switch provides three sensors which operate in response to the mounting of three different types of accessories on a vacuum cleaner. One sensor causes low motor speed operation when an accessory is mounted requiring low speed operation. Another sensor operates to provide high speed motor operation when a high speed accessory is mounted. The third sensor prevents motor operation when an accessory is not mounted on the outlet of the vacuum cleaner. The control switch provides a high speed/low speed switch and a power switch. The power switch is automatically moved to its open or OFF position in response to the mounting of an accessory. Copnsequently, the high speed/low speed switch cannot operate to start the motor, and is therefore provided with low cost contacts. The control switch and motor provide plug-type connectors which automatically connect the internal motor wiring when the switch is installed.
Inventors
- 👤 John J. Jailor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:17
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/28; A47L9/2857; A47L9/2836; A47L9/2842; H; H01; H01H; H01H3/00; H01H3/02; H01H3/16
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
174 words
A vacuum cleaner comprising a two-speed motor connected to drive a fan, a control switch operating to turn said motor on and off and to operate said motor at a selected one of said two speeds, said vacuum cleaner providing an inlet through which air is drawn in by said fan, and an outlet through which air is discharged by said fan, said inlet having means for selectively mounting one of two accessories which are each capable of being mounted on said inlet, said control switch operating said motor at a first speed of said two speeds when a first accessory of said two accessories is mounted on said inlet and operating said motor at a second speed of said two speeds when a second accessory of said two accessories is mounted on said inlet, a third accessory removably mounted on said outlet, said control switch permitting operation of said motor only when one of said first or second accessories is mounted on said inlet and said third accessory is mounted on said outlet.
Claim 2
Dependent Claim
174 words
A vacuum cleaner comprising a two-speed motor connected to drive a fan, a control switch operating to turn said motor on and off and to operate said motor at a selected one of said two speeds, said vacuum cleaner providing an inlet through which air is drawn in by said fan, and an outlet through which air is discharged by said fan, said inlet having means for selectively mounting one of two accessories which are each capable of being mounted on said inlet, said control switch operating said motor at a first speed of said two speeds when a first accessory of said two accessories is mounted on said inlet and operating said motor at a second speed of said two speeds when a second accessory of said two accessories is mounted on said inlet, a third accessory removably mounted on said outlet, said control switch permitting operation of said motor only when one of said first or second accessories is mounted on said inlet and said third accessory is mounted on said outlet.
Claim 3
Dependent Claim
58 words
A vacuum cleaner as set forth in claim 1, wherein said control switch is manually movable between a first position in which said motor is on and a second position in which said motor is off, said control switch being manually movable to said first position only after an accessory is mounted on said inlet and said outlet.
Claim 4
Dependent Claim
37 words
A vacuum cleaner as set forth in claim 2, wherein mounting of an accessory on either of said inlet or said outlet automatically turns said control switch to said second position to prevent operation of said motor.
Claim 5
Dependent Claim
85 words
A vacuum cleaner comprising an electric motor-driven fan, an inlet through which air is drawn when said motor operates, an outlet through which air is discharged when said motor operates, a control switch manually operable between an ON position and an OFF position to turn said motor on and off, an inlet accessory removably mounted on said inlet, and an outlet accessory removably mounted on said outlet, said control switch being movable to said ON position only when said inlet and outlet accessories are mounted.
Claim 6
Dependent Claim
85 words
A vacuum cleaner comprising an electric motor-driven fan, an inlet through which air is drawn when said motor operates, an outlet through which air is discharged when said motor operates, a control switch manually operable between an ON position and an OFF position to turn said motor on and off, an inlet accessory removably mounted on said inlet, and an outlet accessory removably mounted on said outlet, said control switch being movable to said ON position only when said inlet and outlet accessories are mounted.
Claim 7
Dependent Claim
33 words
A vacuum cleaner as set forth in claim 4, wherein mounting of either accessory while said control switch is in said ON position operates to move said control switch to said OFF position.
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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) | 1993-03-05 | 1993-09-04 | 1994-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-03-05 | 1997-09-04 | 1998-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-03-05 | 2001-09-04 | 2002-03-06 | $7700.00 | Window Closed / Lapsed |