US3591747A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lever operated switch with tiltable contact actuator and flexible contacts
Assignee: Cooper Industries LLC
•
Filing: 1969-12-29
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Granted: 1971-07-06
•
Expires: 1989-12-29
Abstract
Abstract A lever operated electric switch has a rocker that is tilted to one side or the other from an intermediate neutral position by movement of the lever. The rocker engages one arm or the other of a leaf spring type of contact member causing engagement with one or another fixed contact. The ends of the arms are reversely bent doubly into S-sahpe so that the extremity presents a longitudinal surface which wipes over the fixed contact surface. The ends are also bifurcated and laterally dished into trough shape.
Inventors
- 👤 John J Dennison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 01:00
CPC Classifications
H; H01; H01H; H01H23/00; H01H23/02; H01H23/12; H01H1/00; H01H1/12; H01H1/14; H01H1/18; H01H23/16
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
127 words
An electric switch comprising insulation casing means, a movable operating member supported from said casing means, fixed contact means mounted in said casing means, movable leaf spring contact means mounted in said casing means adapted to engage and disengage said fixed contact means as said operating member is moved, a pivoted actuating member independent of said movable contact means and mounted in said casing means and tiltable by movement of said operating member to cause engagement and disengagement of said fixed contact means by said movable contact means, said leaf spring means being reversely bent and its end portion being curved laterally into troughlike form with its convex side positioned to engage said fixed contact means to localize pressure and prevent scoring of said fixed contact means.
Claim 2
Dependent Claim
127 words
An electric switch comprising insulation casing means, a movable operating member supported from said casing means, fixed contact means mounted in said casing means, movable leaf spring contact means mounted in said casing means adapted to engage and disengage said fixed contact means as said operating member is moved, a pivoted actuating member independent of said movable contact means and mounted in said casing means and tiltable by movement of said operating member to cause engagement and disengagement of said fixed contact means by said movable contact means, said leaf spring means being reversely bent and its end portion being curved laterally into troughlike form with its convex side positioned to engage said fixed contact means to localize pressure and prevent scoring of said fixed contact means.
Claim 3
Dependent Claim
39 words
A switch as claimed in claim 1 wherein the transverse dimension of the leaf spring means is lessened at the area of said reverse bend to facilitate flexure pivoting thereat of the remainder of said reversely bent end portion.
Claim 4
Dependent Claim
136 words
An electric switch comprising insulation casing means, a movable operating member supported from said casing means, fixed contact means mounted in said casing means, movable leaf spring contact means mounted in said casing means adapted to engage and disengage said fixed contact means as said operating member is moved, a pivoted actuating member independent of said movable contact means and mounted in said casing means and tiltable by movement of said operating member to cause engagement and disengagement of said fixed contact means by said movable contact means, said leaf spring means being reversely bent adjacent one end, the extremity of said one end being bifurcated and each bifurcation being curved laterally into troughlike form with its convex side engaging the fixed contact means to localize contact pressure and prevent scoring of the fixed contact means.
Claim 5
Dependent Claim
136 words
An electric switch comprising insulation casing means, a movable operating member supported from said casing means, fixed contact means mounted in said casing means, movable leaf spring contact means mounted in said casing means adapted to engage and disengage said fixed contact means as said operating member is moved, a pivoted actuating member independent of said movable contact means and mounted in said casing means and tiltable by movement of said operating member to cause engagement and disengagement of said fixed contact means by said movable contact means, said leaf spring means being reversely bent adjacent one end, the extremity of said one end being bifurcated and each bifurcation being curved laterally into troughlike form with its convex side engaging the fixed contact means to localize contact pressure and prevent scoring of the fixed contact means.
Claim 6
Dependent Claim
38 words
A switch as claimed in claim 3 wherein the transverse dimension of the leaf sPring means is lessened at the area of said reverse bend to facilitate flexure pivoting thereat of the remainder of said reversely bent portion.
Claim 7
Dependent Claim
118 words
An electric switch comprising insulation casing means, a movable operating member supported from said casing means, fixed contact means mounted in said casing means, movable flexible leaf spring contact means mounted in said casing means adapted to engage and disengage said fixed contact means as said operating member is moved, a pivoted actuating member independent of said movable contact means and mounted in said casing means and tiltable by movement of said operating member to cause engagement and disengagement of said fixed contact means by said movable contact means, said leaf spring means being bent into S-shape adjacent its end portion and positioned to engage and wipe over said fixed contact means from initial to full pressure engagement.
Claim 8
Dependent Claim
118 words
An electric switch comprising insulation casing means, a movable operating member supported from said casing means, fixed contact means mounted in said casing means, movable flexible leaf spring contact means mounted in said casing means adapted to engage and disengage said fixed contact means as said operating member is moved, a pivoted actuating member independent of said movable contact means and mounted in said casing means and tiltable by movement of said operating member to cause engagement and disengagement of said fixed contact means by said movable contact means, said leaf spring means being bent into S-shape adjacent its end portion and positioned to engage and wipe over said fixed contact means from initial to full pressure engagement.
Claim 9
Dependent Claim
48 words
A switch as claimed in claim 1 having electrically conductive means fixedly securing said leaf spring contact means adjacent its middle on said casing means with portions of the leaf spring on opposite sides of said securing means constituting separate movable contact arms, each having S-shaped end portions.
Claim 10
Dependent Claim
39 words
A switch as claimed in claim 5 wherein the transverse dimension of the leaf spring contact means is lessened at the first of the bends of the S-formation to facilitate flexure pivoting threat of the remainder of the S-formation.
Claim 11
Dependent Claim
40 words
A switch as claimed in claim 5 wherein the extremity of said leaf spring means is bifurcated and the bifurcations separately engage and press on said fixed contact means and wipe over the latter from initial to full pressure engagement.
Claim 12
Dependent Claim
39 words
A switch as claimed in claim 8 wherein the transverse dimension of the leaf spring contact means is lessened at the first of the bends of the S-formation to facilitate flexure pivoting thereat of the remainder of the S-formation.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-05 | 1975-01-04 | 1975-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-05 | 1979-01-04 | 1979-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-05 | 1983-01-04 | 1983-07-06 | $7700.00 | Window Closed / Lapsed |