US4129894A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminated current surge protector
Assignee: Wisconsin Gas Co
•
Filing: 1977-07-07
•
Granted: 1978-12-12
•
Expires: 1997-07-07
Abstract
Abstract A laminated current surge protector comprising a flexible, conformable arrestor having a metal conductor encapsulated between a wear resistant tape adhered to the outer surface of the conductor and a dielectric tape adhered to the inner surface of the conductor. The arrestor is adhered to metal members by a bonding agent and extends across the joint between the members which includes an electrical insulating medium separating the members. The dielectric tape has a plurality of apertures therein exposing the encapsulated conductor to the metal members to provide a gap through which excessive surges of current in the metal members can pass through the conductor from one metal member to the other and thereby by-pass the joint and prevent injury thereto.
Inventors
- 👤 Keith A. Chen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:55
CPC Classifications
H; H01; H01T; H01T1/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
139 words
A laminated current surge protector to protect metal members separated at a joint therebetween by an insulating medium, which comprises a flexible, conformable arrestor extending across the joint and adhered to the outer surfaces of the respective metal members, said arrestor having a metal conductor, a weather resistant coating adhered to the outer surface of the conductor, a durable tape adhered to the inner surface of the conductor and said coating and tape being disposed to encapsulate the metal conductor, and a plurality of perforations disposed in the durable tape exposed to each of the respective metal members to provide a gap through which excessive surges of current flowing through the metal members can pass through the metal conductor from one member to the other and thereby prevent flow of current through the joint and injury to the latter.
Claim 2
Dependent Claim
139 words
A laminated current surge protector to protect metal members separated at a joint therebetween by an insulating medium, which comprises a flexible, conformable arrestor extending across the joint and adhered to the outer surfaces of the respective metal members, said arrestor having a metal conductor, a weather resistant coating adhered to the outer surface of the conductor, a durable tape adhered to the inner surface of the conductor and said coating and tape being disposed to encapsulate the metal conductor, and a plurality of perforations disposed in the durable tape exposed to each of the respective metal members to provide a gap through which excessive surges of current flowing through the metal members can pass through the metal conductor from one member to the other and thereby prevent flow of current through the joint and injury to the latter.
Claim 3
Dependent Claim
42 words
The laminated surge protector of claim 1 and the metal conductor being a strip of pliable aluminum, and the adherence of the bottom of the conductor to the metal members being a layer of non-flowable adhesive and of the pressure sensitive type.
Claim 4
Dependent Claim
26 words
The laminated surge protector of claim 1, and the coating being a strip of tape and a durable non-flowing adhesive adhering the tape to the conductor.
Claim 5
Dependent Claim
41 words
The laminated surge protector of claim 1, and the metal members to be protected being a pair of metal pipes joined end to end, and the insulating medium being dielectric components insulating the free ends of the pipes from each other.
Claim 6
Dependent Claim
26 words
The laminated surge protector of claim 1, and the metal members to be protected being a pair of flat members, and the insulating medium being air.
Claim 7
Dependent Claim
30 words
The laminated surge protector of claim 1 and the metal conductor being provided with a narrowed cross-section portion to more readily ascertain failure of the conductor at such narrowed portion.
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) | 1981-12-11 | 1982-06-12 | 1982-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-12-11 | 1986-06-12 | 1986-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-12-11 | 1990-06-12 | 1990-12-12 | $7700.00 | Window Closed / Lapsed |