US4259562A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable disintegrator
Assignee: Cammann Manufacturing Co Inc
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Filing: 1978-09-18
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Granted: 1981-03-31
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Expires: 1998-09-18
Abstract
Abstract A portable disintegrator to disintegrate a hole in a metal workpiece is disclosed. Disintegrator current and coolant are supplied to the working end of an electrode which is vibrated in advance and retract axial movements. Guide means either actually engages the workpiece immediately surrounding the hole to be formed or engages a part of the workpiece closely adjacent where the hole is to be formed in the workpiece. The main frame of the metal disintegrator may be counterbalanced for weight but is guided by hand with freedom of limited movement in two dimensions during operation of the disintegrator.
Inventors
- 👤 Fred W. Cammann
- 👤 Jere H. Roach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:53
CPC Classifications
B; B23; B23H; B23H9/00; B23H9/001
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
171 words
A metal disintegrator having a frame supporting a guide means with an aperture in the guide means to receive and axially guide an electrode relative to a workpiece, means to supply disintegrator current and coolant to at least a working end of the electrode, vibrator means to vibrate the electrode in advance and retract axial movements, and insulator means between the workpiece and electrode, the improvement comprising, said guide means having a first portion for guiding the working end of the electrode and adapted to engage a first part of a workpiece closely adjacent the location of the workpiece contacted by axial movement of the electrode, said frame being portable and having freedom of limited movement in two dimensions during operation of the disintegrator, and annular coolant seal means in said guide means carried on said frame to have limited movement therewith, said coolant seal means having a curved surface cooperable with the workpiece and conformable thereto to inhibit coolant leakage therebetween despite slight movements in two dimensions of the disintegrator.
Claim 2
Dependent Claim
171 words
A metal disintegrator having a frame supporting a guide means with an aperture in the guide means to receive and axially guide an electrode relative to a workpiece, means to supply disintegrator current and coolant to at least a working end of the electrode, vibrator means to vibrate the electrode in advance and retract axial movements, and insulator means between the workpiece and electrode, the improvement comprising, said guide means having a first portion for guiding the working end of the electrode and adapted to engage a first part of a workpiece closely adjacent the location of the workpiece contacted by axial movement of the electrode, said frame being portable and having freedom of limited movement in two dimensions during operation of the disintegrator, and annular coolant seal means in said guide means carried on said frame to have limited movement therewith, said coolant seal means having a curved surface cooperable with the workpiece and conformable thereto to inhibit coolant leakage therebetween despite slight movements in two dimensions of the disintegrator.
Claim 3
Dependent Claim
23 words
A metal disintegrator as set forth in claim 1, wherein said electrode is hollow, and means to direct coolant through the hollow electrode.
Claim 4
Dependent Claim
25 words
A metal disintegrator as set forth in claim 1, wherein said guide means first portion surrounds a majority of said working end of the electrode.
Claim 5
Dependent Claim
35 words
A metal disintegrator as set forth in claim 1 wherein said annular seal means is in said guide means first portion and adapted to engage the workpiece to contain the coolant within said guide means.
Claim 6
Dependent Claim
37 words
A metal disintegrator as set forth in claim 4, wherein said electrode is hollow, said coolant supply being to the external surface of said electrode, and a coolant exit communicating with the interior of said hollow electrode.
Claim 7
Dependent Claim
30 words
A metal disintegrator as set forth in claim 5, including suction means connected to said coolant exit to aid in extraction of coolant through the interior of said hollow electrode.
Claim 8
Dependent Claim
37 words
A metal disintegrator as set forth in claim 1, wherein said insulator means includes an insulator as part of said guide means first portion, and an aperture in said insulator to receive and closely guide the electrode.
Claim 9
Dependent Claim
37 words
A metal disintegrator as set forth in claim 1, wherein said first portion of said guide means includes said annular seal means and is concave to engage and be centered on a convex portion of the workpiece.
Claim 10
Dependent Claim
24 words
A metal disintegrator as set forth in claim 1, wherein said annular seal means has a partially spherical end adapted to engage the workpiece.
Claim 11
Dependent Claim
21 words
A metal disintegrator as set forth in claim 1, wherein said guide means is tubular to enclose the electrode and coolant.
Claim 12
Dependent Claim
61 words
A metal disintegrator as set forth in claim 1, wherein said guide means includes an electrode shank connected to said vibrator means, a chuck adapted to hold said electrode and connected to said electrode shank, said guide means being tubular, and said guide means first portion being removable from a second portion of said guide means for access to said chuck.
Claim 13
Dependent Claim
51 words
A metal disintegrator as set forth in claim 1, wherein said guide means first portion is axially slidable on a second portion of said guide means, and electrical switch means actuated by telescoping movement of said guide means first portion in contacting a workpiece and connected to energize the metal disintegrator.
Claim 14
Dependent Claim
28 words
A metal disintegrator as set forth in claim 1, including a suction means connected to said guide means to aid in extraction of coolant from said guide means.
Claim 15
Dependent Claim
31 words
A metal disintegrator as set forth in claim 1, including a shroud surrounding said annular seal means adjacent the workpiece, and suction means connected to said shroud to extract coolant therefrom.
Claim 16
Dependent Claim
22 words
A metal disintegrator as set forth in claim 1, including power means to move the electrode axially relative to said portable frame.
Claim 17
Dependent Claim
28 words
A metal disintegrator as set forth in claim 15, including attitude control means connected to control said power means in accordance with the attitude of said portable frame.
Claim 18
Dependent Claim
46 words
A metal disintegrator as set forth in claim 15, including attitude means mounted on said portable frame, and means connecting said attitude control means to said power means to control said power means differently for each of horizontal, vertical and inverted attitudes of said portable frame.
Claim 19
Dependent Claim
24 words
A metal disintegrator as set forth in claim 1, wherein said first portion of said guide means includes a male-female engagement with the workpiece.
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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) | 1984-03-30 | 1984-09-29 | 1985-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-30 | 1988-09-29 | 1989-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-30 | 1992-09-29 | 1993-03-31 | $7700.00 | Window Closed / Lapsed |