US2756545A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic glass cutting machine
Assignee: PPG Industries Inc
•
Filing: 1952-11-15
•
Granted: 1956-07-31
•
Expires: 1972-11-15
Abstract
No abstract record available.
Inventors
- 👤 Florian V Atkeson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:29
CPC Classifications
H; H04; H04N; H04N9/00; H04N9/44; H04N9/455; C; C03; C03B; C03B33/00; C03B33/02; C03B33/023; C03B33/027; C03B33/033; C23; C23C; C23C10/00; C23C10/06; C23C10/08; C23C8/00; C23C8/06; C23C8/08; Y; Y10; Y10T; Y10T225/00; Y10T225/10; Y10T225/12
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
53 words
A METHOD OF CUTTING A CONTINUOUS SHEET OF GLASS COMPRISING THE STEPS OF PLACING THE GLASS SURFACE TO BE CUT UNDER COMPRESSION, SCORING THE COMPRESSED GLASS SURFACE AND SIMULTANEOUSLY APPLYING TENSION FORCES TO SAID SURFACE AT A POINT SPACED FROM THE POINT OF SCORING THEREBY RUNNING THE CUT FORMED ALONG THE GLASS SURFACE
Claim 2
Independent Claim
53 words
A METHOD OF CUTTING A CONTINUOUS SHEET OF GLASS COMPRISING THE STEPS OF PLACING THE GLASS SURFACE TO BE CUT UNDER COMPRESSION, SCORING THE COMPRESSED GLASS SURFACE AND SIMULTANEOUSLY APPLYING TENSION FORCES TO SAID SURFACE AT A POINT SPACED FROM THE POINT OF SCORING THEREBY RUNNING THE CUT FORMED ALONG THE GLASS SURFACE
Claim 3
Independent Claim
106 words
A DEVICE FOR CUTTING A CONTINUOUS SHEET OF MOVING GLASS COMPRISING A CONVEYOR FOR CONVEYING GLASS IN SHEET FORM, CUTTING MEANS MOVABLEEINTO CUTTING ENGAGEMENT WITH ONE SURFACE OF THE GLASS, AT LEAST ONE MEMBER ADAPTED FOR PRESSURE ENGAGING RELATION WITH THE OPPOSITE SURFACE OF THE GLASS, FULCRUM MEANS ALIGNED WITH AND SPACED FROM THE CUTTER MEANS ALONG THE DIRECTION OF TRAVEL OF THE GLASS FOR PRESSURE ENGAGEMENT WITH THE OPPOSITE SURFACE F THE GLASS CONVEYED, AT LEAST ONE TENSIONING MEMBER MOVALBE INTO PRESSURE ENGAGEMENT WITH THE ONE SURFACE OF THE GLASS AT ONE SIDE OF THE AXIS FORMED BY THE CUTTING MEANS AND THE FULCRUM MEANS.
Claim 4
Independent Claim
106 words
A DEVICE FOR CUTTING A CONTINUOUS SHEET OF MOVING GLASS COMPRISING A CONVEYOR FOR CONVEYING GLASS IN SHEET FORM, CUTTING MEANS MOVABLEEINTO CUTTING ENGAGEMENT WITH ONE SURFACE OF THE GLASS, AT LEAST ONE MEMBER ADAPTED FOR PRESSURE ENGAGING RELATION WITH THE OPPOSITE SURFACE OF THE GLASS, FULCRUM MEANS ALIGNED WITH AND SPACED FROM THE CUTTER MEANS ALONG THE DIRECTION OF TRAVEL OF THE GLASS FOR PRESSURE ENGAGEMENT WITH THE OPPOSITE SURFACE F THE GLASS CONVEYED, AT LEAST ONE TENSIONING MEMBER MOVALBE INTO PRESSURE ENGAGEMENT WITH THE ONE SURFACE OF THE GLASS AT ONE SIDE OF THE AXIS FORMED BY THE CUTTING MEANS AND THE FULCRUM MEANS.
References Cited (Backward Citations)
US2078386A
Cited
US2504655A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-07-31 | 1960-01-30 | 1960-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-31 | 1964-01-30 | 1964-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-31 | 1968-01-30 | 1968-07-31 | $7700.00 | Window Closed / Lapsed |