US3792618A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Switch operating device
Assignee: Allis Chalmers Corp
•
Filing: 1972-12-18
•
Granted: 1974-02-19
•
Expires: 1992-12-18
Abstract
Abstract A remotely located self-contained switch operating device is provided which includes an independent power source connected to energize a drive motor that is arranged to actuate a screw and nut drive mechanism for effecting the operation of a remotely located switch in an opening or closing movement.
Inventors
- 👤 M Worrix
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:22
CPC Classifications
H; H01; H01H; H01H3/00; H01H3/54; H01H3/58; H01H3/02; H01H3/32; H01H3/40; H01H2003/405; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18568; Y10T74/18576
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
208 words
A switch operator for operating a switch device in an opening and closing movEment; a housing adapted to be mounted on a supporting structure; a shaft rotatably supported in said housing and having one end extending outwardly of said housing; an arm member having one end connected to the extending end of said rotatable shaft in a manner that the opposite end of said arm member moves in an arcuate path of travel upon rotation of said shaft, the end of said arm member which moves in an arcuate path of travel being operatively connected to the switch device for effecting its operation; a reversible electric motor supported by said housing; a screw and nut drive mechanism operably connected to be actuated by said motor for relative bodily translational movement; a linkage mechanism including a crank secured to said rotatable shaft and extending outwardly therefrom; a drive link having one end pivotally secured to the extending end of said crank, the opposite end of said drive link being operatively connected to said screw and nut mechanism in a manner to be actuated by the relative bodily translational movement of said screw and nut mechanism; and, a battery carried by said housing and operatively connected to energize said motor.
Claim 2
Dependent Claim
208 words
A switch operator for operating a switch device in an opening and closing movEment; a housing adapted to be mounted on a supporting structure; a shaft rotatably supported in said housing and having one end extending outwardly of said housing; an arm member having one end connected to the extending end of said rotatable shaft in a manner that the opposite end of said arm member moves in an arcuate path of travel upon rotation of said shaft, the end of said arm member which moves in an arcuate path of travel being operatively connected to the switch device for effecting its operation; a reversible electric motor supported by said housing; a screw and nut drive mechanism operably connected to be actuated by said motor for relative bodily translational movement; a linkage mechanism including a crank secured to said rotatable shaft and extending outwardly therefrom; a drive link having one end pivotally secured to the extending end of said crank, the opposite end of said drive link being operatively connected to said screw and nut mechanism in a manner to be actuated by the relative bodily translational movement of said screw and nut mechanism; and, a battery carried by said housing and operatively connected to energize said motor.
Claim 3
Dependent Claim
175 words
A switch operator according to claim 1 wherein said motor is pivotally supported in said housing for pivotal movement about an axis which is disposed in a plane parallel to a plane in which the axis of said shaft is located, said motor being operably connected to rotate said screw; said nut being threadedly engaged on said screw for movement therealong upon rotation of said screw; said drive link having an end thereof pivotally connected to said nut; a guide link pivotally connected to said drive link at a point midway between the pivotal connections of said drive link with said crank and said nut, the opposite end of said guide link being pivotally connected to a stationary member carried by said housing and located below said shaft; and, whereby movement of said nut serves to actuate said drive link which acts against the extending end of said crank to thereby rotate said shaft and said motor moves about its pivot axis to maintain a straight force line drive between said nut and said crank.
Claim 4
Dependent Claim
24 words
A switch operator according to claim 1 including a disengageable coupling member operable to establish a drive connection between said shaft and said arm.
Claim 5
Dependent Claim
92 words
A switch operator according to claim 3 wherein said disengageable coupling including a housing having an opening which rotatably receives the extending end of said shaft; a locking member carried in said coupling housing for movement between a locking position in which it operates to lock said coupling housing to said shaft for rotation therewith, said locking member being also movable to an unlock position wherein it operates to release the coupling housing from rotating with said shaft so that the rotation of said shaft will not be imparted to said arm.
Claim 6
Dependent Claim
110 words
A switch operator according to claim 4 wherein said coupling housing is provided with a surface transverse to the opening which receives the extending end of said shaft, said surface having serrations therein arranged in an annular row around the shaft opening; said arm at the end thereof that is adjacent to said coupling housing being provided with a surface having an annular row of serrations complementary to the annular row of serrations on said coupling housing; and, means to secure said arm to said coupling housing wherein said serrations on said coupling housing surface and in said arm surface interengage to establish an angular adjustable positive drive connection therebetween.
Claim 7
Dependent Claim
88 words
A switch operator according to claim 5 wherein said arm remote from said coupling housing is provided with a pad surface having serrations therein arranged transversely to the axis of said arm, said serrated pad surface being disposed on the opposite side of the arm from the side thereof on which said coupling housing surface is provided; a pivotal coupliNg member having a serrated collar portion adjustable secured to said serrated pad portion of said arm; and, means connected to said pivotal coupling and to the switch device.
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) | 1977-02-18 | 1977-08-20 | 1978-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-18 | 1981-08-20 | 1982-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-18 | 1985-08-20 | 1986-02-19 | $7700.00 | Window Closed / Lapsed |