Patent US3348557A successfully refreshed from Google Patents.
US3348557A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for etching metal
Assignee: Individual
•
Filing: 1965-07-01
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Granted: 1967-10-24
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Expires: 1985-07-01
Abstract
No abstract record available.
Inventors
- 👤 Kenneth W Adamson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:58
CPC Classifications
C; C23; C23F; C23F1/00; C23F1/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
144 words
AN ETCHING APPARATUS CONSISTING OF A SPRAY CHAMBER COVERED WITH A TRANSPARENT COVER, A FIXTURE FOR MOUNTING A WORKPIECE WITHIN SAID CHAMBER, WHICH FIXTURE IS CAPABLE OF RATATING ABOUT A HORIZONTAL AXIS, SPRAY MANIFOLDS HAVING SPRAY HEADS THEREON MOUNTED BOTH INTERNALLY AND EXTERNALLY TO THE SURFACE OF REVOLUTION GENERATED BY THE ROTATING WORK-PIECE WHICH INTERNAL AND EXTERNAL SPRAY HEADS ARE MOUNTED DIAMETRICALLY OPPOSITE EACH OTHER SO THAT THE SPRAY IMPINGEMENT PATTERN COVERS AN ARC OF LESS THAN ONE HUNDRED AND EIGHTY DEGREES ON THE BOTTOM OF THE ROTATION WITH NO SPRAY IN THE UPPER PORTION OF THE ROTATION TO PERMIT VISUAL INSPECTION DURING OPERATION, AND WHICH SPRAY PATTERM IS SYMMETRICAL ABOUT A VERTICAL PLANE THROUGH THE HORIZONTAL AXIS, MEANS FOR CIRCULATING THE ETCHING FLUID THROUGH THE MANIFOLDS AND SPRAY HEADS, AND MEANS FOR ROTATING THE MOUNTING FIXTURE ABOUT AN AXIS IN THE HORIZONTAL PLANE.
Claim 2
Dependent Claim
144 words
AN ETCHING APPARATUS CONSISTING OF A SPRAY CHAMBER COVERED WITH A TRANSPARENT COVER, A FIXTURE FOR MOUNTING A WORKPIECE WITHIN SAID CHAMBER, WHICH FIXTURE IS CAPABLE OF RATATING ABOUT A HORIZONTAL AXIS, SPRAY MANIFOLDS HAVING SPRAY HEADS THEREON MOUNTED BOTH INTERNALLY AND EXTERNALLY TO THE SURFACE OF REVOLUTION GENERATED BY THE ROTATING WORK-PIECE WHICH INTERNAL AND EXTERNAL SPRAY HEADS ARE MOUNTED DIAMETRICALLY OPPOSITE EACH OTHER SO THAT THE SPRAY IMPINGEMENT PATTERN COVERS AN ARC OF LESS THAN ONE HUNDRED AND EIGHTY DEGREES ON THE BOTTOM OF THE ROTATION WITH NO SPRAY IN THE UPPER PORTION OF THE ROTATION TO PERMIT VISUAL INSPECTION DURING OPERATION, AND WHICH SPRAY PATTERM IS SYMMETRICAL ABOUT A VERTICAL PLANE THROUGH THE HORIZONTAL AXIS, MEANS FOR CIRCULATING THE ETCHING FLUID THROUGH THE MANIFOLDS AND SPRAY HEADS, AND MEANS FOR ROTATING THE MOUNTING FIXTURE ABOUT AN AXIS IN THE HORIZONTAL PLANE.
References Cited (Backward Citations)
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Cited
US3078857A
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US964126A
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US915898A
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US1042784A
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US2951490A
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US3203437A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-23 | 1971-04-24 | 1971-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-23 | 1975-04-24 | 1975-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-23 | 1979-04-24 | 1979-10-24 | $7700.00 | Window Closed / Lapsed |