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US3766347A Expired / Lapsed US ⏱️ 0.0 years remaining

Control switch arrangement for an upright vacuum cleaner

Assignee: White Consolidated Industries Inc
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Filing: 1971-12-30
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Granted: 1973-10-16
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Expires: 1991-12-30
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Abstract

Abstract A control switch arrangement for controlling the operation of an upright vacuum cleaner during on-the-floor and off-the-floor cleaning. An elongated handle is pivotally connected to the body of the cleaner, and a power switch is mounted in the grip of the handle for controlling the operation of the fan drive motor. The power switch has an actuating lever which projects through an opening in the grip and which serves to close the power switch when a user grasps the grip. A combination motor speed control and bypass switch is also mounted on the handle in circuit with the fan drive motor. The speed control switch permits the fan to run at two different speeds when the cleaner is set up for onthe-floor cleaning, and at a speed suited for off-the-floor cleaning when the cleaner is set up for this mode of operation. When the speed control switch is in its off-the-floor cleaning position, the power switch is bypassed.

Inventors

  • 👤 J Brooks
  • 👤 H Schaefer

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 19:19
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/28; A47L9/2857; A47L9/2836; A47L9/2842

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 274 words
A control switch arrangement for controlling the operation of an electric motor which drives the suction generating fan of an upright vacuum cleaner when said cleaner is functioning in either an on-the-floor or off-the-floor cleaning mode, said cleaner including a housing having a suction inlet communicating with said fan and an electrical circuit for supplying current to said motor, said housing also having a handle pivotally connected thereto and a grip at the upper end of said handle to facilitate movement of said housing over a surface to be cleaned, said control switch arrangement comprising a manually actuated power switch adapted to be connected to said electrical circuit and adapted to be mounted in the grip of said handle so as to be closed by a user''s hand when said handle grip is grasped, and A manually actuated combination motor speed control and bypass switch adapted to be connected to said electrical circuit for coaction with said power switch, said combination switch having a first position adapted to cause said motor to operate at a speed suited for on-the-floor cleaning when said power switch is closed, said combination switch also having a second position adapted to cause said motor to operate at a speed suited for offthe-floor cleaning, and said combination switch being operable to bypass said power switch when in said second position, whereby the flow of current to said motor is interrupted whenever the grip on said handle is released by a user and said combination switch is in said first position but is maintained regardless of the position of said power switch when said combination switch is in said second position.
Claim 2
Dependent Claim 274 words
A control switch arrangement for controlling the operation of an electric motor which drives the suction generating fan of an upright vacuum cleaner when said cleaner is functioning in either an on-the-floor or off-the-floor cleaning mode, said cleaner including a housing having a suction inlet communicating with said fan and an electrical circuit for supplying current to said motor, said housing also having a handle pivotally connected thereto and a grip at the upper end of said handle to facilitate movement of said housing over a surface to be cleaned, said control switch arrangement comprising a manually actuated power switch adapted to be connected to said electrical circuit and adapted to be mounted in the grip of said handle so as to be closed by a user''s hand when said handle grip is grasped, and A manually actuated combination motor speed control and bypass switch adapted to be connected to said electrical circuit for coaction with said power switch, said combination switch having a first position adapted to cause said motor to operate at a speed suited for on-the-floor cleaning when said power switch is closed, said combination switch also having a second position adapted to cause said motor to operate at a speed suited for offthe-floor cleaning, and said combination switch being operable to bypass said power switch when in said second position, whereby the flow of current to said motor is interrupted whenever the grip on said handle is released by a user and said combination switch is in said first position but is maintained regardless of the position of said power switch when said combination switch is in said second position.
Claim 3
Dependent Claim 35 words
The control switch arrangement of claim 1, further characterized in that said combination switch has a third position for operating said motor at another speed suited for on-the-floor cleaning when said power switch is closed.
Claim 4
Dependent Claim 87 words
The control switch arrangement of claim 2, further characterized in that said housing includes an electric light for illuminating an area to be cleaned, and said combination switch is adapted to cause said lamp to be illuminated only when said power switch is closed and said combination switch is in either said first or said third position, said combination switch also being adapted to cause said lamp to be illuminated regardless of the position of said power switch when said combination switch is in said second position.

References Cited (Backward Citations)

US2639456A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-10-15 1977-04-16 1977-10-16 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-10-15 1981-04-16 1981-10-16 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-10-15 1985-04-16 1985-10-16 $7700.00 Window Closed / Lapsed

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