US3819037A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cable plugging apparatus
Assignee: 3M Co
•
Filing: 1972-08-28
•
Granted: 1974-06-25
•
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 10:27
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)
US2733836A
Cited
US2967795A
Cited
US2923442A
Cited
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 |