US3256648A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Particle removal device for portable power grinders and the like
Assignee: Individual
•
Filing: 1963-07-17
•
Granted: 1966-06-21
•
Expires: 1983-07-17
Abstract
No abstract record available.
Inventors
- 👤 Daniel B Subonovich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 00:49
CPC Classifications
B; B24; B24B; B24B55/00; B24B55/06; B24B55/10; B24B55/102
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
IN COMBINATION WITH A PORTABLE TOOL HAVING A MOTOR, A SHAFT EXTENDING THEREFROM AND A TOOL CARRIED BY SAID SHAFT; THE PROVISION OF A DUST COLLECTING ATTACHMENT FOR SAID TOOL COMPRISING AN OPEN BOTTOM HOUSING SURROUNDING SAID TOOL AND SHAFT, SAID HOUSING INCLUDING A PORTION BEING FORMED OF FLEXIBLE MATERIAL; MEANS FOR ATTACHING SAID HOUSING AROUND SAID SHAFT COMPRISING A SOCKET, A COLLAR AFFIXED TO SAID SOCKET AND SURROUNDING A PORTION OF SAID MOTOR, A SET SCREW EXTENDING THROUGH SAID COLLAR TO BEAR AGAINST SAID MOTOR; A HOLLOW PARTIAL BALL AFFIXED TO SAID HOUSING AROUND SAID MOTOR SHAFT AND POSITIONED IN SAID SOCKET AND MEANS FOR CONNECTING SAID HOUSING TO A VACUUM DEVICE ON ONE SIDE OF SAID HOUSING, AND A WINDOW CUT IN SAID HOUSING ON A SIDE REMOTE FROM SAID CONNECTING MEANS.
Claim 2
Dependent Claim
134 words
IN COMBINATION WITH A PORTABLE TOOL HAVING A MOTOR, A SHAFT EXTENDING THEREFROM AND A TOOL CARRIED BY SAID SHAFT; THE PROVISION OF A DUST COLLECTING ATTACHMENT FOR SAID TOOL COMPRISING AN OPEN BOTTOM HOUSING SURROUNDING SAID TOOL AND SHAFT, SAID HOUSING INCLUDING A PORTION BEING FORMED OF FLEXIBLE MATERIAL; MEANS FOR ATTACHING SAID HOUSING AROUND SAID SHAFT COMPRISING A SOCKET, A COLLAR AFFIXED TO SAID SOCKET AND SURROUNDING A PORTION OF SAID MOTOR, A SET SCREW EXTENDING THROUGH SAID COLLAR TO BEAR AGAINST SAID MOTOR; A HOLLOW PARTIAL BALL AFFIXED TO SAID HOUSING AROUND SAID MOTOR SHAFT AND POSITIONED IN SAID SOCKET AND MEANS FOR CONNECTING SAID HOUSING TO A VACUUM DEVICE ON ONE SIDE OF SAID HOUSING, AND A WINDOW CUT IN SAID HOUSING ON A SIDE REMOTE FROM SAID CONNECTING MEANS.
References Cited (Backward Citations)
DE1068145B
Cited
US1086368A
Cited
US1945031A
Cited
GB533964A
Cited
FR1052262A
Cited
US2764852A
Cited
US2944465A
Cited
DE1085064B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-20 | 1969-12-20 | 1970-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-20 | 1973-12-20 | 1974-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-20 | 1977-12-20 | 1978-06-21 | $7700.00 | Window Closed / Lapsed |