Patent US3614708A successfully refreshed from Google Patents.
US3614708A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Meter disconnect device
Assignee: Ekstrom Industries Inc
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Filing: 1969-09-11
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Granted: 1971-10-19
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Expires: 1989-09-11
Abstract
Abstract A unitary insulating plastic disconnect device designed to plug into both line jaws of a common household watthour meter socket; said device being provided with a slot capable of holding a meter by one blade and in a disconnected condition by reason of being rotated out of contact with said meter socket jaws.
Inventors
- 👤 William S Koepfgen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:48
CPC Classifications
H; H01; H01R; H01R13/00; H01R13/60; G; G01; G01R; G01R11/00; G01R11/02
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
133 words
In the art of detachable electric meters of the type comprising a meter carrying a contact blade and a meter terminal socket carrying contact jaws adapted to receive the blade, a detachable device for insulating the blade from the jaws, comprising: a base having one dimension of sufficient length to span the distance between two jaws; prongs, connected to said base, for inserting into said jaws to detachably hold said base adjacent said jaws; walls, connected to said base, and defining a slot of varying width, for detachably holding a blade and thereby the meter in a position out of contact with said jaws and axially rotated but essentially coaxial and coplanar with the normal meter position when the blades are received in the jaws; and insulating surfaces on all of said device.
Claim 2
Dependent Claim
133 words
In the art of detachable electric meters of the type comprising a meter carrying a contact blade and a meter terminal socket carrying contact jaws adapted to receive the blade, a detachable device for insulating the blade from the jaws, comprising: a base having one dimension of sufficient length to span the distance between two jaws; prongs, connected to said base, for inserting into said jaws to detachably hold said base adjacent said jaws; walls, connected to said base, and defining a slot of varying width, for detachably holding a blade and thereby the meter in a position out of contact with said jaws and axially rotated but essentially coaxial and coplanar with the normal meter position when the blades are received in the jaws; and insulating surfaces on all of said device.
Claim 3
Dependent Claim
58 words
In the art of detachable electric meters of the type comprising a meter carrying a contact blade and a meter terminal socket-carrying contact jaws adapted to receive the blade, a detachable device for insulating the blade from the jaws, comprising: the detachable device of claim 1 further including a skirt, connected to said base, for shielding said jaws.
Claim 4
Dependent Claim
74 words
In the art of detachable electric meters of the type comprising a meter carrying a contact blade and a meter terminal socket carrying contact jaws adapted to receive the blade, a detachable device for insulating the blade from the jaws, comprising: the detachable device of claim 1, further including, a handle, connected to said base, and disposed away from said supports to facilitate the safe detaching by hand of said device from said jaws.
Claim 5
Dependent Claim
76 words
In the art of detachable electric meters of the type comprising a meter carrying a contact blade and a meter terminal socket-carrying contact jaws adapted to receive the blade, a detachable device for insulating the blade from the jaws, comprising: the detachable device of claim 1, further including, a protrusion, extending from at least one of said walls defining a slot, for interferring with the removal of said blade after it is inserted in said slot.
Claim 6
Dependent Claim
91 words
In the art of detachable electric meters of the type comprising a meter carrying a contact blade and a meter terminal socket-carrying contact jaws adapted to receive the blade, a detachable device for insulating the blade from the jaws, comprising: the detachable device of claim 1, further including, a protrusion, extending from at least one of said walls defining a slot, for interferring with the removal of said blade after it is inserted in said slot, wherein, said protrusion is shaped in the form of a vertical section of a cone.
Claim 7
Dependent Claim
98 words
In the art of detachable electric meters of the type comprising a meter carrying a contact blade and a meter terminal socket-carrying contact jaws adapted to receive the blade, a detachable device for insulating the blade from the jaws, comprising: the detachable device of claim 1, wherein said walls, defining a slot, are disposed to hold said blade at a 45* angle to said normal blade position, and further including: a protrusion, extending from at least one of said walls defining a slot, for interferring with the removal of said blade after it is inserted in said slot.
Claim 8
Dependent Claim
78 words
In the art of detachable electric meters of the type comprising a meter carrying a contact blade and a meter terminal socket-carrying contact jaws adapted to receive the blade, a detachable device for insulating the blade from the jaws, comprising: the detachable device of claim 1, wherein said walls, defining a slot, are disposed to hold said blade at an angle to said normal blade position and said angle is within the range between 39* and 50*, inclusive.
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) | 1974-10-18 | 1975-04-19 | 1975-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-18 | 1979-04-19 | 1979-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-18 | 1983-04-19 | 1983-10-19 | $7700.00 | Window Closed / Lapsed |