Patent US5343094A successfully refreshed from Google Patents.
Patent US3835598A successfully refreshed from Google Patents.
US3835598A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Abrasion tool
Assignee: Individual
•
Filing: 1972-06-08
•
Granted: 1974-09-17
•
Expires: 1992-06-08
Abstract
Abstract An abrasion tool for removing incrustation from the interior surfaces of passages, openings, and conduits such as the cooling passages through the exhaust manifold of a marine engine. The tool includes an elongated metal core that is both relatively stiff and flexible, and the core is provided therealong with a plurality of recesses adapted to receive therein incrustation loosened from the interior surfaces of such passage. Substantially all of the exposed surfaces of the core are covered or coated with outwardly projecting abrasion elements in the form of grit (such as a metalic carbide) that is brazed, adhesively attached, or otherwise bonded to the core so as to be rigidly related thereto.
Inventors
- 👤 A Tobey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:21
CPC Classifications
B; B24; B24D; B24D15/00; B24D15/02; B23; B23D; B23D61/00; B23D61/18; B23D61/185
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
177 words
An abrasion tool for removing incrustations and the like from interior surfaces such as the cooling passages through an exhaust manifold of a marine engine, comprising: an elongated substantially flat spring metal core adapted to be inserted into such passage and to be displaced with respect thereto; said core having along opposite sides and edges thereof a covering surface engageable with such interior surface, said covering surface comprising a plurality of outwardly projecting carbide abrasioN elements anchored directly to said sides and edges and having exposed sharp edges projecting therefrom to abrade said incrustations from said interior surfaces; and said core being provided with a plurality of recesses therealong positioned to receive said incrustations loosened from said interior surface by said abrasion elements, said core being relatively inflexible about any longitudinal axis of the core and relatively flexible about any transverse axis thereof, and said core is provided with a plurality of trasversely extending corrugations each parallel to one another and disposed along its length and extending from one longitudinal side of the core to the other.
Claim 2
Dependent Claim
177 words
An abrasion tool for removing incrustations and the like from interior surfaces such as the cooling passages through an exhaust manifold of a marine engine, comprising: an elongated substantially flat spring metal core adapted to be inserted into such passage and to be displaced with respect thereto; said core having along opposite sides and edges thereof a covering surface engageable with such interior surface, said covering surface comprising a plurality of outwardly projecting carbide abrasioN elements anchored directly to said sides and edges and having exposed sharp edges projecting therefrom to abrade said incrustations from said interior surfaces; and said core being provided with a plurality of recesses therealong positioned to receive said incrustations loosened from said interior surface by said abrasion elements, said core being relatively inflexible about any longitudinal axis of the core and relatively flexible about any transverse axis thereof, and said core is provided with a plurality of trasversely extending corrugations each parallel to one another and disposed along its length and extending from one longitudinal side of the core to the other.
References Cited (Backward Citations)
US2627145A
Cited
US2755607A
Cited
US2838890A
Cited
US3353526A
Cited
US3557496A
Cited
US3613318A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-16 | 1978-03-18 | 1978-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-16 | 1982-03-18 | 1982-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-16 | 1986-03-18 | 1986-09-17 | $7700.00 | Window Closed / Lapsed |