US4045307A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Structure for switching electrical current and cell comprising same
Assignee: Alcoa Corp
•
Filing: 1976-01-14
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Granted: 1977-08-30
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Expires: 1996-01-14
Abstract
Abstract A structure for switching electrical current, the structure comprising a switch having two pairs of terminals and two modes of operation. The structure, in addition, includes a first electrically conductive means for connecting the terminals of one pair together, and, a second electrically conductive means for connecting the terminals of the other pair together. Means are included for disconnecting the terminals of the above pairs, and a third electrically conductive means is provided for connecting one of the terminals of one pair to one of the terminals of the other pair.
Inventors
- 👤 Bernard C. Turley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:03
CPC Classifications
C; C25; C25C; C25C3/00; C25C3/06; C25C3/16; C25C7/00; C25C7/02; C25C7/025
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
172 words
Structure for changing the path of current flow through an electrical load connected to a source of electrical current by four fixed conductors physically disposed in close but spaced relationship to each other, two of the four conductors being hereinafter referred to as source conductors and two as load conductors, a movable, electrically conductive switch member located on one side of one source and one load conductor for electrically connecting the one load conductor and the one source conductor together, a second movable electrically conductive switch member located on one side of the other two load and source conductors for electrically connecting the same together, two electrically insulative members for physical disposal in location between the load conductors and, two electrically conductive members for physical disposal in respective locations between the switc members and their associated load conductors, the electrically conductive members being effective to respectively electrically connect together the switch members and their associated load conductors when the switch members are moved to engage the source conductors and the conductive members.
Claim 2
Dependent Claim
172 words
Structure for changing the path of current flow through an electrical load connected to a source of electrical current by four fixed conductors physically disposed in close but spaced relationship to each other, two of the four conductors being hereinafter referred to as source conductors and two as load conductors, a movable, electrically conductive switch member located on one side of one source and one load conductor for electrically connecting the one load conductor and the one source conductor together, a second movable electrically conductive switch member located on one side of the other two load and source conductors for electrically connecting the same together, two electrically insulative members for physical disposal in location between the load conductors and, two electrically conductive members for physical disposal in respective locations between the switc members and their associated load conductors, the electrically conductive members being effective to respectively electrically connect together the switch members and their associated load conductors when the switch members are moved to engage the source conductors and the conductive members.
Claim 3
Dependent Claim
47 words
The structure of claim 1 in which the insulative members are each provided with a handle, and are physically removable from the location between the load conductors, and the conductive members are physically removable from their respective locations between the switch members and their associated load conductors.
Claim 4
Dependent Claim
59 words
The structure of claim 2 in which the two insulative members are respectively disposable between the switch members and their associated load conductors to insulate the load conductors from the switch members when the switch members are moved to engage the source conductors, and the conductive members are disposable between the load conductors to electrically connect the same together.
Claim 5
Dependent Claim
66 words
The structure of claim 1 including two, elongated clamp arms respectively associated with the two switch members, and a compound toggle arrangement mechanically associated with the clamp arms, the clamp arms and toggle arrangement being adapted to move the switch members into and out of engagement with the load and source conductors, and to lock the clamp arms in engagement with the load and source conductors.
Claim 6
Dependent Claim
130 words
Apparatus for changing the operation of an electrolytic cell having at least one anode and one cathode, and a source of electrical current ordinarily directly connected to the anode and to the cathode at two, spaced apart locations on the anode and cathode for electrolytic operation of the cell, the apparatus comprising means for disconnecting one of the locations on the anode and cathode from the source of electrical current, and means for connecting the disconnected locations of the anode and cathode directly together such that the path of current flow to and from the source of electrical current is limited to serial flow through the anode and cathode, the electrical resistance of the anode and cathode to the flow of electrical current therethrough being effective to heat the cell.
Claim 7
Dependent Claim
130 words
Apparatus for changing the operation of an electrolytic cell having at least one anode and one cathode, and a source of electrical current ordinarily directly connected to the anode and to the cathode at two, spaced apart locations on the anode and cathode for electrolytic operation of the cell, the apparatus comprising means for disconnecting one of the locations on the anode and cathode from the source of electrical current, and means for connecting the disconnected locations of the anode and cathode directly together such that the path of current flow to and from the source of electrical current is limited to serial flow through the anode and cathode, the electrical resistance of the anode and cathode to the flow of electrical current therethrough being effective to heat the cell.
References Cited (Backward Citations)
US3703621A
Cited
US3822195A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-08-29 | 1981-02-28 | 1981-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-29 | 1985-02-28 | 1985-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-29 | 1989-02-28 | 1989-08-30 | $7700.00 | Window Closed / Lapsed |