Patent US3731340A successfully refreshed from Google Patents.
US3731340A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motor vehicle brake drum cleaning apparatus
Assignee: Individual
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Filing: 1971-08-09
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Granted: 1973-05-08
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Expires: 1991-08-09
Abstract
Abstract An apparatus for cleaning motor vehicle brake drum assemblies and other objects which apparatus has no moving parts and utilizes fixed air streams to being cleaned while at the same time preventing the dust and other particles from contaminating the cleaning work area.
Inventors
- 👤 H Pitre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:06
CPC Classifications
B; B08; B08B; B08B15/00; B08B15/02; B08B15/026
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
152 words
An Apparatus for cleaning dust and other foreign particles from surfaces which comprises: a. a hollow body with one end open, said open end surrounding surface; b. a sealing means attached to said open end and fitting about said surface so as to form a dust seal; c. an air duct attached to said hollow body and extending inside said body, said duct having one end at least partially closed and another end adapted to connect with an air stream source, said duct having air exit openings between said ends; d. an air dispersal means located inside said body and attached within said body, said air dispersal means positioned and shaped about said air exit openings to disperse and deflect any air emitted through said air exit openings toward said open end; and e. a means for removing said dust and other foreign particles from said body during operation of said apparatus.
Claim 2
Independent Claim
152 words
An Apparatus for cleaning dust and other foreign particles from surfaces which comprises: a. a hollow body with one end open, said open end surrounding surface; b. a sealing means attached to said open end and fitting about said surface so as to form a dust seal; c. an air duct attached to said hollow body and extending inside said body, said duct having one end at least partially closed and another end adapted to connect with an air stream source, said duct having air exit openings between said ends; d. an air dispersal means located inside said body and attached within said body, said air dispersal means positioned and shaped about said air exit openings to disperse and deflect any air emitted through said air exit openings toward said open end; and e. a means for removing said dust and other foreign particles from said body during operation of said apparatus.
Claim 3
Dependent Claim
17 words
An apparatus according to claim 1 wherein said air dispersal means is attached to said air duct.
Claim 4
Dependent Claim
16 words
An apparatus according to claim 1 wherein said air dispersal means is attached to said body.
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) | 1976-05-07 | 1976-11-06 | 1977-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-07 | 1980-11-06 | 1981-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-07 | 1984-11-06 | 1985-05-08 | $7700.00 | Window Closed / Lapsed |