US3839614A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Appliance control system
Assignee: Conair LLC
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Filing: 1973-03-16
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Granted: 1974-10-01
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Expires: 1993-03-16
Abstract
Abstract A control switch for conditioning an appliance having multiple operating modes to operate at a higher than normal line voltage prevents inadvertent operation in modes which would exceed the ratings of the appliance by automatically limiting movement of the appliance mode switch when the higher line voltage selection is made. Provision is made for unambiguously identifying the line voltage selected and the operating mode of the appliance at the higher line voltage.
Inventors
- 👤 M Saganowski
- 👤 F Bostick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:36
CPC Classifications
H; H01; H01H; H01H3/00; H01H3/02; H01H3/20
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
193 words
In an appliance operable in first and second modes from a first range of supply voltages, and operable only in said second mode from a second range of supply voltages, and having a housing including a switch access aperture, a control switch assembly comprising, in combination: means including a multiple position slide switch having at least first and second positions for selectively conditioning said appliance to operate in said first and second operating modes, respectively, said switch having an actuator stem projecting therefrom; means for mounting said mode selection slide switch within said housing with said actuator stem extending through said switch access aperture to enable said switch to be user-positioned in either said first or second mode selection positions; voltage selector means comprising a slide member slidably mounted within said housing and having a user-accessible actuator tab extending through said switch access aperture for selectively conditioning said appliance for operation from either said first or second range of supply voltages, said actuator tab blocking said switch actuator stem from said first mode selection position when said slider is positioned to condition said appliance for operation from said second range of supply voltages.
Claim 2
Dependent Claim
193 words
In an appliance operable in first and second modes from a first range of supply voltages, and operable only in said second mode from a second range of supply voltages, and having a housing including a switch access aperture, a control switch assembly comprising, in combination: means including a multiple position slide switch having at least first and second positions for selectively conditioning said appliance to operate in said first and second operating modes, respectively, said switch having an actuator stem projecting therefrom; means for mounting said mode selection slide switch within said housing with said actuator stem extending through said switch access aperture to enable said switch to be user-positioned in either said first or second mode selection positions; voltage selector means comprising a slide member slidably mounted within said housing and having a user-accessible actuator tab extending through said switch access aperture for selectively conditioning said appliance for operation from either said first or second range of supply voltages, said actuator tab blocking said switch actuator stem from said first mode selection position when said slider is positioned to condition said appliance for operation from said second range of supply voltages.
Claim 3
Dependent Claim
57 words
An appliance control switch as defined in claim 1 wherein said voltage selection slide member comprises a generally planar slider constrained to reciprocate along a path perpendicular to the path of said mode selection slide switch actuator stem, and wherein said actuator tab projects from one edge and extends perpendicular to the outside face of said slider.
Claim 4
Dependent Claim
27 words
An appliance control switch as defined in claim 2 wherein said actuator tab is substantially identical in size to said stem of said mode selection slide switch.
Claim 5
Dependent Claim
75 words
An appliance control switch as defined in claim 2 wherein said outside face of said voltage selection slider includes indicia indicative of the operating mode selections of said mode selection slide switch when said appliance is conditioned to operate from said second range of supply voltages, acd wherein said indicia appear through said switch access aperture only when said slider is positioned to condition said appliance to operate from said second range of operating voltages.
Claim 6
Dependent Claim
81 words
An appliance control switch as defined in claim 2 wherein said mode selection slide switch has opposed mounting ears, wherein said means for mounting said switch comprise channels molded into the wall of said housing for receiving said ears, and wherein means comprising an additional channel molded into said wall and a spring means disposed between said mode selection slide switch and the inside face of said voltage selection slider are included for mounting said voltage selection slider within said housing.
References Cited (Backward Citations)
US3548136A
Cited
US3766352A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-30 | 1978-04-01 | 1978-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-30 | 1982-04-01 | 1982-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-30 | 1986-04-01 | 1986-10-01 | $7700.00 | Window Closed / Lapsed |