US3914660A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control device with control knob securing the shield cover
Assignee: Robertshaw Controls Co
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Filing: 1974-07-22
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Granted: 1975-10-21
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Expires: 1994-07-22
Abstract
Abstract A control device having a housing provided with a selector knob and dial arrangement adjacent the knob, the housing also having electrical terminals adjacent the knob and dial arrangement. A substantially flat protective shield is secured to the control device and covers the terminals, the shield having an opening passing therethrough to expose the dial arrangement and have the selector knob telescopically projecting therethrough. The selector knob has a tongue portion thereof overlapping the shield to hold the shield to the control device.
Inventors
- 👤 John W Stearley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 03:39
CPC Classifications
H; H02; H02G; H02G3/00; H02G3/02; H02G3/08; H02G3/14; G; G01; G01D; G01D11/00; G01D11/30; G01D11/305; G12; G12B; G12B9/00; G12B9/08
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
154 words
In combination, a control device having a housing provided with a selector knob and dial arrangement adjacent said knob, said housing having a control shaft carrying said selector knob, said housing having electrical terminal means adjacent said knoB and dial arrangement, and a substantially flat protective shield secured to said control device and covering said terminal means, said shield having opening means therethrough exposing said dial arrangement and having said selector knob projecting therethrough, said knob having a tongue portion bearing on and overlapping over said shield and holding said shield to said control device, said selector knob having a substantially cylindrical part, said tongue portion projecting from said cylindrical part and being disposed at one end of said cylindrical part and said control shaft connected at the other end of said cylindrical part, said cylindrical part of said knob having portions thereof coplanar with said shield for the entire thickness of said shield.
Claim 2
Dependent Claim
154 words
In combination, a control device having a housing provided with a selector knob and dial arrangement adjacent said knob, said housing having a control shaft carrying said selector knob, said housing having electrical terminal means adjacent said knoB and dial arrangement, and a substantially flat protective shield secured to said control device and covering said terminal means, said shield having opening means therethrough exposing said dial arrangement and having said selector knob projecting therethrough, said knob having a tongue portion bearing on and overlapping over said shield and holding said shield to said control device, said selector knob having a substantially cylindrical part, said tongue portion projecting from said cylindrical part and being disposed at one end of said cylindrical part and said control shaft connected at the other end of said cylindrical part, said cylindrical part of said knob having portions thereof coplanar with said shield for the entire thickness of said shield.
Claim 3
Dependent Claim
34 words
A combination as set forth in claim 1 wherein said housing has a projecting part spaced from said selector knob, said shield having another opening means telescopically receiving said projecting part of said housing.
Claim 4
Dependent Claim
22 words
A combination as set forth in claim 2 wherein said projecting part of said housing is press-fit in said other opening means.
Claim 5
Dependent Claim
30 words
A combination as set forth in claim 1 wherein said opening means defines an arcuate edge of said shield that complements said portion of said cylindrical part of said knob.
Claim 6
Dependent Claim
27 words
A combination as set forth in claim 1 wherein said opening means is substantially rectangular to define two pair of opposed side edges bordering said opening means.
Claim 7
Dependent Claim
29 words
A combination as set forth in claim 5 wherein one of said opposed side edges of one pair of side edges has a concave portion thereof facing said knob.
Claim 8
Dependent Claim
42 words
A combination as set forth in claim 1 wherein said knob has a pointer thereon for indicating condition selection thereof by the relation of said pointer to said dial arrangement, said tongue portion of said knob being substantially diametrically opposite said pointer.
Claim 9
Dependent Claim
26 words
A combination as set forth in claim 1 wherein said shield comprises a flat blank of material having opposed flat parallel sides without any projections therefrom.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-10-20 | 1979-04-21 | 1979-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-20 | 1983-04-21 | 1983-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-20 | 1987-04-21 | 1987-10-21 | $7700.00 | Window Closed / Lapsed |