US4073094A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for repairing a crack in a pane of plate glass
Assignee: Individual
•
Filing: 1977-05-31
•
Granted: 1978-02-14
•
Expires: 1997-05-31
Abstract
Abstract A system for repairing a crack in a pane of plate glass in which a rotatable shaft extends through the glass and carries cutters on both sides for concurrently cutting an aperture therein from both sides.
Inventors
- 👤 Robert A. Walz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:53
CPC Classifications
B; B24; B24B; B24B7/00; B24B7/10; B24B7/16; B24B7/17; B25; B25H; B25H1/00; B25H1/0021; B25H1/0057; B25H1/0064; B28; B28D; B28D1/00; B28D1/02; B28D1/04; B28D1/041; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1062; Y10T156/12; Y10T156/1304; Y10T408/00; Y10T408/36; Y10T408/375; Y10T408/378; Y10T408/3796
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
72 words
Apparatus for repairing a crack in a pane of plate glass having a pilot hole therethrough comprising a single drive motor having an extended shaft, an inner cutter, an outer cutter, means for mounting said cutters on said shaft on opposite sides of said pane of glass, and means for yieldably urging said cutters into cutting relation with said pane of glass to concurrently cut a section therefrom from opposite sides thereof.
Claim 2
Dependent Claim
72 words
Apparatus for repairing a crack in a pane of plate glass having a pilot hole therethrough comprising a single drive motor having an extended shaft, an inner cutter, an outer cutter, means for mounting said cutters on said shaft on opposite sides of said pane of glass, and means for yieldably urging said cutters into cutting relation with said pane of glass to concurrently cut a section therefrom from opposite sides thereof.
Claim 3
Dependent Claim
21 words
Apparatus as set forth in claim 1 including means for applying a cutting fluid to the cutting surfaces of said cutters.
Claim 4
Dependent Claim
20 words
Apparatus as defined in claim 1 in which one of said cutters is slightly larger in diameter than the other.
Claim 5
Dependent Claim
29 words
Apparatus as defined in claim 1 in which means are provided for detachably supporting said motor in predetermined position upon the face of said glass in normal relation thereto.
Claim 6
Independent Claim
58 words
A method for repairing a crack in a pane of plate glass having a pilot hole therethrough comprising supporting a single drive motor upon the pane of glass in normal relation thereto and with the shaft of the motor extending through the pilot hole, and concurrently cutting the glass from both sides thereof to remove a section therefrom.
Claim 7
Independent Claim
58 words
A method for repairing a crack in a pane of plate glass having a pilot hole therethrough comprising supporting a single drive motor upon the pane of glass in normal relation thereto and with the shaft of the motor extending through the pilot hole, and concurrently cutting the glass from both sides thereof to remove a section therefrom.
Claim 8
Dependent Claim
18 words
A method as defined in claim 5 in which a lubricating fluid is applied to the cutting zones.
Claim 9
Dependent Claim
24 words
A method as defined in claim 5 in which the diameter of the cutter is slightly larger on one side than on the other.
Claim 10
Dependent Claim
35 words
The method of claim 5 in which cutters are yieldably urged against both faces of the glass to cause concurrent cuts to be made therein to allow removal of the cut section of glass therefrom.
References Cited (Backward Citations)
US3162066A
Cited
US3494348A
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US3568367A
Cited
US3851491A
Cited
US3813820A
Cited
US3986913A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-02-13 | 1981-08-15 | 1982-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-13 | 1985-08-15 | 1986-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-13 | 1989-08-15 | 1990-02-14 | $7700.00 | Window Closed / Lapsed |