US4006324A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical distribution panel lockout means for switch actuators
Assignee: Dow Chemical Co
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Filing: 1975-10-02
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Granted: 1977-02-01
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Expires: 1995-10-02
Abstract
Abstract The invention is a positive lockout means for circuit breakers in an electrical distribution box wherein a central bar extends from top to bottom of the box between the arrays of circuit breakers. The bar has an array of bores extending into the bar from the top side of the distribution. Rod-like locking elements having a configuration which permits one end of the locking element to pass into a bore in a circuit breaker actuator while the other end is inserted in a bore in the bar to prevent movement of the actuator element so secured. Positive lockout is provided by a cover plate which is positively secured in position over the central bar.
Inventors
- 👤 Arthur L. Leasher
- 👤 Lawrence F. Sanborn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:02
CPC Classifications
H; H01; H01H; H01H9/00; H01H9/20; H01H9/28; H01H9/281; H01H9/282; H01H9/283; Y; Y10; Y10S; Y10S70/00; Y10S70/30
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
141 words
In an electrical distribution box wherein there are a plurality of spaced apart vertical rows of horizontally disposed circuit breakers each of which has an end including an actuator element extending through the front cover plate of said box, each actuator element having a bore extending vertically therethrough the improvement comprising a bar-like member being secured to said front cover and disposed between a pair of vertical rows of circuit breakers, said bar-like member having an array of bores opening to the outwardly extending face of said bar-like member, a locking element having a rod-like arm part and first and second end parts, said first end part extending into the bore in an actuator element and said second end part extending into a bore in said bar-like member, and end secured bar cover plate means extending closely over said bar-like member.
Claim 2
Dependent Claim
141 words
In an electrical distribution box wherein there are a plurality of spaced apart vertical rows of horizontally disposed circuit breakers each of which has an end including an actuator element extending through the front cover plate of said box, each actuator element having a bore extending vertically therethrough the improvement comprising a bar-like member being secured to said front cover and disposed between a pair of vertical rows of circuit breakers, said bar-like member having an array of bores opening to the outwardly extending face of said bar-like member, a locking element having a rod-like arm part and first and second end parts, said first end part extending into the bore in an actuator element and said second end part extending into a bore in said bar-like member, and end secured bar cover plate means extending closely over said bar-like member.
Claim 3
Dependent Claim
27 words
An electrical distribution box in accordance with claim 1, wherein said bores in said bar-like member are disposed generally perpendicularly with respect to said front cover plate.
Claim 4
Dependent Claim
29 words
An electrical distribution box in accordance with claim 1, wherein said first end part of said locking element extends at least substantially through said bore in said actuator element.
Claim 5
Dependent Claim
27 words
An electrical distribution box in accordance with claim 1, wherein said bar cover plate means is secured at one end to said front cover plate by hinges.
Claim 6
Dependent Claim
26 words
An electrical distribution box in accordance with claim 4, wherein the other end of said bar cover plate means is locked to said front cover plate.
Claim 7
Dependent Claim
33 words
An electrical distribution box in accordance with claim 1, wherein said first and second end parts fit closely but slidably in said bore in said actuator element and in said bar-like member, respectively.
Claim 8
Dependent Claim
30 words
An electrical distribution box in accordance with claim 1, wherein said first end of said locking element is long enough to extend through the bores in two adjacent actuator elements.
Claim 9
Dependent Claim
23 words
An electrical distribution box in accordance with claim 5, wherein said bar cover plate means is locked by means of a removable lock.
References Cited (Backward Citations)
US2978613A
Cited
US3784766A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-02-01 | 1980-08-02 | 1981-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-02-01 | 1984-08-02 | 1985-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-02-01 | 1988-08-02 | 1989-02-01 | $7700.00 | Window Closed / Lapsed |