US4008419A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shielded control device therefor
Assignee: Robertshaw Controls Co
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Filing: 1975-08-04
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Granted: 1977-02-15
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Expires: 1995-08-04
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 15:09
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: 4
Claim 1
Independent Claim
158 words
A substantially flat protective shield for a control device having a housing provided with a selector knob and dial arrangement adjacent said knob as well as electrical terminal means adjacent said knob and dial arrangement, said protective shield being adapted to be secured to said control device and cover said terminal means, said shield having opening means therethrough adapted to expose said dial arrangement and have said selector knob project therethrough so that a tongue portion of said knob can overlap said shield to hold said shield to said control device, said opening means being substantially rectangular to define two pair of opposed side edges bordering said opening means, one of said opposed side edges of one pair of side edges having a concave portion thereof adapted to face said knob and complement the telescoping portion of said knob, said shield comprising a flat blank of electrical insulating material having opposed flat parallel sides without any projections therefrom.
Claim 2
Dependent Claim
158 words
A substantially flat protective shield for a control device having a housing provided with a selector knob and dial arrangement adjacent said knob as well as electrical terminal means adjacent said knob and dial arrangement, said protective shield being adapted to be secured to said control device and cover said terminal means, said shield having opening means therethrough adapted to expose said dial arrangement and have said selector knob project therethrough so that a tongue portion of said knob can overlap said shield to hold said shield to said control device, said opening means being substantially rectangular to define two pair of opposed side edges bordering said opening means, one of said opposed side edges of one pair of side edges having a concave portion thereof adapted to face said knob and complement the telescoping portion of said knob, said shield comprising a flat blank of electrical insulating material having opposed flat parallel sides without any projections therefrom.
Claim 3
Dependent Claim
26 words
A protective shield as set forth in claim 1 wherein said shield has another opening means adapted to telescopically receive a projecting part of said housing.
Claim 4
Dependent Claim
16 words
A protective shield as set forth in claim 1 wherein said flat blank is substantially rectangular.
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) | 1980-02-15 | 1980-08-16 | 1981-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-02-15 | 1984-08-16 | 1985-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-02-15 | 1988-08-16 | 1989-02-15 | $7700.00 | Window Closed / Lapsed |