Patent US4044464A successfully refreshed from Google Patents.
US4044464A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circular cutting device
Assignee: Individual
•
Filing: 1976-07-27
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Granted: 1977-08-30
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Expires: 1996-07-27
Abstract
Abstract A circular cutting device having a stand which rests upon the workpiece with its own weight and via an adhesive layer disposed on the bottom of the stand. A sleeve in the stand threadedly receives a hollow pivot shaft in which a centering pin is axially displaceable against the force of a spring. A radial arm carries the tool and is fixed to a bush rotatably guided on the shaft.
Inventors
- 👤 Georg Schiess
- 👤 Jorg Heinzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:31
CPC Classifications
B; B23; B23B; B23B51/00; B23B51/04; B23B51/05; B26; B26F; B26F1/00; B26F1/38; B26F1/3846; B43; B43L; B43L9/00; B43L9/02; B43L9/04
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
86 words
A circular cutting device with an arm rotatable about a central axis carrying the cutting tool, wherein the axis is defined by a hollow shaft held in a stand plate which provides the necessary stability for working by means of its own weight and an adhesive coating on its underside resting on the workpiece, the hollow shaft guiding a centering pin displaceably in the axial direction, with a spring tending to hold the centering pin in a position protruding from the stand plate at the bottom.
Claim 2
Dependent Claim
86 words
A circular cutting device with an arm rotatable about a central axis carrying the cutting tool, wherein the axis is defined by a hollow shaft held in a stand plate which provides the necessary stability for working by means of its own weight and an adhesive coating on its underside resting on the workpiece, the hollow shaft guiding a centering pin displaceably in the axial direction, with a spring tending to hold the centering pin in a position protruding from the stand plate at the bottom.
Claim 3
Dependent Claim
27 words
The device defined in claim 1 wherein the arm is a hollow profile member and is extended by an extension rod of the same profile, insertable thereinto.
Claim 4
Dependent Claim
29 words
Device as defined in claim 1, wherein a cutter on a part of the tool holder is exchangeably gripped by means of a clamping plate with a set screw.
Claim 5
Dependent Claim
30 words
Device as defined in claim 1, wherein the hollow shaft is fitted in an axial sleeve of the stand plate and detachably connected to said sleeve by a screw thread.
Claim 6
Dependent Claim
19 words
Device as defined in claim 1 wherein the arm has several tool holders radially displaceably and fixably arranged thereon.
Claim 7
Dependent Claim
22 words
The device defined in claim 1 wherein as further accessory there is provided a glass cutter exchangeably fitted in the tool holder.
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) | 1980-08-29 | 1981-02-28 | 1981-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-29 | 1985-02-28 | 1985-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-29 | 1989-02-28 | 1989-08-30 | $7700.00 | Window Closed / Lapsed |