Patent US3819037A successfully refreshed from Google Patents.
US3819037A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cable plugging apparatus
Assignee: 3M Co
•
Filing: 1972-08-28
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Granted: 1974-06-25
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Expires: 1992-08-28
Abstract
Abstract Sheathed electrical cables are plugged using a split sleeve sealed hermetically over an opened cable section and having an access nipple for inserting hardenable liquid from a disposable container serving as a pressure applicator.
Inventors
- 👤 M Filreis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:53
CPC Classifications
H; H02; H02G; H02G1/00; H02G1/14
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
106 words
A resin applicator assembly comprising: an open-ended rigid cylinder terminating at its other end in a centrally disposed threaded axially extending nozzle, and a protective diaphragm over the inner end of said nozzle; and, within said cylinder, a multi-compartment flexible mixing envelope containing the components of a self-hardening liquid resin mixture, a plunger slidably fitting within said cylinder, and a perforate puncture disc loosely fitting within said cylinder and having centrally of each face a pointed axially extending projection; and said plunger being positioned between said envelope and said disc, said open-ended cylinder being sealed with a removable cap, and said disc positioned adjacent said cap.
Claim 2
Dependent Claim
106 words
A resin applicator assembly comprising: an open-ended rigid cylinder terminating at its other end in a centrally disposed threaded axially extending nozzle, and a protective diaphragm over the inner end of said nozzle; and, within said cylinder, a multi-compartment flexible mixing envelope containing the components of a self-hardening liquid resin mixture, a plunger slidably fitting within said cylinder, and a perforate puncture disc loosely fitting within said cylinder and having centrally of each face a pointed axially extending projection; and said plunger being positioned between said envelope and said disc, said open-ended cylinder being sealed with a removable cap, and said disc positioned adjacent said cap.
Claim 3
Dependent Claim
36 words
The assembly of claim 1 wherein said plunger consists of a shallow generally cup-shaped element having a centrally inwardly curved bottom and is sufficiently soft and resilient to be placed at an angle within said cylinder.
References Cited (Backward Citations)
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US2967795A
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US2923442A
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US3489147A
Cited
US3363811A
Cited
US3636950A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-24 | 1977-12-24 | 1978-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-24 | 1981-12-24 | 1982-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-24 | 1985-12-24 | 1986-06-25 | $7700.00 | Window Closed / Lapsed |