Patent US3684849A successfully refreshed from Google Patents.
US3684849A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heavy duty switch
Assignee: ITE Imperial Corp
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Filing: 1971-01-08
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Granted: 1972-08-15
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Expires: 1991-01-08
Abstract
Abstract A multipole heavy duty manually or remote control operated switch is constructed of individual pole units stacked side-byside. Each pole unit includes first and second molded insulating members joined side to side to form a housing having a chamber, and both stationay contacts and an arc chute are within said chamber. A so-called four-bar linkage connects the switch arms to a bail connected to a common operating mechanism. When the switch is open, the movable contact ends of the switch arms extend beyond the confines of the pole unit housings to provide a positive visual indication that the switch is open. Each switch arm is constructed of two abutting sheet metal members having oppositely extending formations providing contact areas and an area for making a mechanical connection to the operating bail.
Inventors
- 👤 Martin V Zubaty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:36
CPC Classifications
H; H01; H01H; H01H9/00; H01H9/30; H01H9/44; H01H9/443; H01H21/00; H01H21/54; H01H21/56
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
184 words
A multipole switch device comprising a plurality of individual pole units stacked side-by-side; each of said pole units including first and second molded insulating members joined side to side in face to face relationship to form a housing having a chamber therein; first and second stationary contacts within said chamber; an elongated switch blade, a first pivot pivotally mounting one end of said blade to said first contact, with the other end of the blade being operable into and out of engagement with said second contact as said blade is pivoted about said first pivot; an arc chute within said housing in the region of said second contact; an operating mechanism operatively connected to the blades of all of said pole units for simultaneous operation thereof to first and second positions; for each of said pole units said blade when in said first position being in engagement with said second contact and when in said second position said other end thereof being disengaged from said second contact and extending beyond the confines of said housing for visual observation that said pole unit is open.
Claim 2
Dependent Claim
184 words
A multipole switch device comprising a plurality of individual pole units stacked side-by-side; each of said pole units including first and second molded insulating members joined side to side in face to face relationship to form a housing having a chamber therein; first and second stationary contacts within said chamber; an elongated switch blade, a first pivot pivotally mounting one end of said blade to said first contact, with the other end of the blade being operable into and out of engagement with said second contact as said blade is pivoted about said first pivot; an arc chute within said housing in the region of said second contact; an operating mechanism operatively connected to the blades of all of said pole units for simultaneous operation thereof to first and second positions; for each of said pole units said blade when in said first position being in engagement with said second contact and when in said second position said other end thereof being disengaged from said second contact and extending beyond the confines of said housing for visual observation that said pole unit is open.
Claim 3
Dependent Claim
69 words
A multipole switch device as set forth in claim 1 in which there is an operating bail interposed between the operating mechanism and the switch blades of all of said pole units; a second pivot about which said bail is moved by said operating mechanism; said first and second pivots being parallel and laterally offset with said first pivot being closer than said second pivot to said second contact.
Claim 4
Dependent Claim
54 words
A multipole switch device as set forth in claim 1 in which each of the switch blades comprises first and second sheet-like members abutting one anothEr in a plane normal to said first pivot; said members having oppositely directed formations extending parallel to said first axis; said formations being engaged by said stationary contacts.
Claim 5
Dependent Claim
39 words
A multipole switch device as set forth in claim 3 in which said sheet-like members are substantially identical, with said formations including like contact formations at each end of said blade and a central formation between said contact formations.
Claim 6
Dependent Claim
26 words
A multipole switch device as set forth in claim 4 in which each of said sheet-like members is symmetrical with respect to two axes of symmetry.
Claim 7
Dependent Claim
97 words
A multipole switch device as set forth in claim 2 in which each of the switch blades comprises first and second sheet-like members abutting one another in a plane normal to said first pivot; said members having oppositely directed formations extending parallel to said first axis; said formations being engaged by said stationary contacts; an individual lever interposed between said switch blades and said bail and pivotally connected to the latter; each of said levers being pivotally secured to its associated blade essentially at the center thereof and being positioned between the members of said associated blade.
Claim 8
Dependent Claim
67 words
A multipole switch device as set forth in claim 1 in which there is an operating bail interposed between the operating mechanism and the switch blades; an individual metal lever interposed between each of said blades and said bail; an individual insulating member interposed between each of said levers and said bail; each of said insulating members being formed by being molded directly on its associated lever.
Claim 9
Dependent Claim
51 words
A multipole switch device as set forth in claim 7 in which there is a second pivot about which said bail is moved by said operating mechanism; said first and second pivots being parallel and laterally offset with said first pivot being closer than said second pivot to said second contact.
Claim 10
Dependent Claim
61 words
A multipole switch device as set forth in claim 2 in which there is an individual lever interposed between each of the switch blades and the bail; one end of said lever being pivotally connected to its associated switch blade at a point substantially midway between the ends thereof; the other end of said lever being pivotally connected to said bail.
Claim 11
Dependent Claim
75 words
A multipole switch device as set forth in claim 9 in which each of the switch blades comprises first and second sheet-like members abutting one another in a plane normal to said first pivot; said members having formations extending in opposite directions and parallel to said first axis; said formations being engaged by said stationary contacts; each of said levers being positioned between the members constituting the blade to which the particular lever is secured.
Claim 12
Dependent Claim
53 words
A multipole switch device as set forth in claim 1, in which there is an operating bail interposed between the operating mechanism and the switch blades of said plurality of pole units; and means pivotally mounting the end of said bail remote from said switch blades directly to said plurality of pole units.
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) | 1975-08-15 | 1976-02-14 | 1976-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-15 | 1980-02-14 | 1980-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-15 | 1984-02-14 | 1984-08-15 | $7700.00 | Window Closed / Lapsed |