US3755642A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lever means for an electrical switch construction or the like and method of making the same
Assignee: Robertshaw Controls Co
•
Filing: 1972-05-17
•
Granted: 1973-08-28
•
Expires: 1992-05-17
Abstract
Abstract An electrical switch construction having a housing provided with an electrical switch therein and a movable plunger for actuating the electrical switch when the plunger is axially moved relative to the housing. A lever is pivotally mounted to the housing to permit pivotal movement of the lever and the lever is secured to the plunger intermediate the opposed ends of the lever to cause movement of the plunger as the lever is pivoted relative to the housing.
Inventors
- 👤 R Warner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:43
CPC Classifications
H; H01; H01H; H01H13/00; H01H13/02; H01H13/12; H01H13/14; H01H13/18; H01H13/186; H01H35/00
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
89 words
In an electrical switch construction having a housing means provided with electrical switch means and a self-contained axially movable plunger means for actuating said switch means, and having a part thereof projecting out of said housing means, the improvement comprising a lever means pivotally mounted to said housing means to permit pivoted movement of said lever means, said lever means being detachably and slidably secured to said part of said plunger means to cause substantially axial movement thereof as said lever means is pivoted relative to said housing means.
Claim 2
Dependent Claim
89 words
In an electrical switch construction having a housing means provided with electrical switch means and a self-contained axially movable plunger means for actuating said switch means, and having a part thereof projecting out of said housing means, the improvement comprising a lever means pivotally mounted to said housing means to permit pivoted movement of said lever means, said lever means being detachably and slidably secured to said part of said plunger means to cause substantially axial movement thereof as said lever means is pivoted relative to said housing means.
Claim 3
Dependent Claim
48 words
In an electrical switch construction as set forth in claim 1, the further improvement wherein said lever has opposed ends, one of said ends being pivotally mounted to said housing means, said lever means being interconnected to said part of said plunger means intermediate said opposed ends thereof.
Claim 4
Dependent Claim
30 words
In an electrical switch construction as set forth in claim 2, the further improvement wherein said other end of said lever means comprises a handle portion for said lever means.
Claim 5
Dependent Claim
40 words
In an electrical switch construction as set forth in claim 2, the further improvement wherein said lever means comprises a one-piece rod-like member bent so that the ends of said member define said one opposed ends of said lever means.
Claim 6
Dependent Claim
53 words
In an electrical switch construction as set forth in claim 4, the further improvement wherein said housing means has a plurality of cooperating pairs of openings therein, said opposed ends of said rod-like member being disposed in a selected pair of said openings to pivotally mount said lever means to said housing means.
Claim 7
Dependent Claim
55 words
In an electrical switch construction as set forth in claim 5, the further improvement wherein said pairs of openings are disposed in aligned relation whereby the lever ratio of said lever means acting on said plunger means can be changed by having said ends of said rod-like member disposed in another pair of said openings.
Claim 8
Dependent Claim
53 words
In an electrical switch construction as set forth in claim 4, the further improvement wherein two parts of said bent rod-like member intermediate said opposed ends of said lever means are substantially parallel to each other, said part of said plunger means being interconnected to said two parts of said bent rod-like member.
Claim 9
Dependent Claim
45 words
In an electrical switch construction as set forth in claim 7, the further improvement wherein said part of said plunger means is a rivet head like part straddled by said two parts of said rod-like member to interconnect said lever means to said plunger means.
Claim 10
Dependent Claim
49 words
In an electrical switch construction as set forth in claim 7, the further improvement wherein said part of said plunger means has an undercut slot means provided therein receiving said two parts of said rod-like member therein to interconnect said lever means to said part of said plunger means.
Claim 11
Dependent Claim
50 words
In an electrical switch construction as set forth in claim 4, the further improvement wherein said bent rod-like member is reversely bent in the middle portion thereof to define the other opposed end of said lever means, said middle portion being bent to define said handle for said lever means.
Claim 12
Dependent Claim
82 words
A lever means for operating an axially movable and self-contained actuating plunger means of an electrical switch construction, said lever means having means adapted to pivotally mount said lever means to the housing means of said switch construction to permit pivotal movement of said lever means relative thereto, said lever means having means adapted to be detachably and slidably secured to said plunger means to cause substantially only axial movement thereof as said lever means is pivoted relative to said housing means.
Claim 13
Dependent Claim
82 words
A lever means for operating an axially movable and self-contained actuating plunger means of an electrical switch construction, said lever means having means adapted to pivotally mount said lever means to the housing means of said switch construction to permit pivotal movement of said lever means relative thereto, said lever means having means adapted to be detachably and slidably secured to said plunger means to cause substantially only axial movement thereof as said lever means is pivoted relative to said housing means.
Claim 14
Dependent Claim
46 words
A lever means as set forth in claim 11, wherein said lever has opposed ends, one of said ends being adapted to be pivotally mounted to said housing means, said lever means being adapted to be interconnected to said plunger means intermediate said opposed ends thereof.
Claim 15
Dependent Claim
25 words
A lever means as set forth in claim 12, wherein said other end of said lever means comprises a handle portion for said lever means.
Claim 16
Dependent Claim
35 words
A lever means as set forth in claim 12, wherein said lever means comprises a one-piece rod-like member bent so that the ends of said member define said one opposed ends of said lever means.
Claim 17
Dependent Claim
41 words
A lever means as set forth in claim 14, wherein two parts of said bent rod-like member intermediate said opposed ends of said lever means are substantially parallel to each other and define said means for attaching to said plunger means.
References Cited (Backward Citations)
US2547765A
Cited
US2828372A
Cited
US3141075A
Cited
US3493707A
Cited
US3480752A
Cited
US3571541A
Cited
US3681554A
Cited
US3683144A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-08-27 | 1977-02-26 | 1977-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-27 | 1981-02-26 | 1981-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-27 | 1985-02-26 | 1985-08-28 | $7700.00 | Window Closed / Lapsed |