Patent US3418504A successfully refreshed from Google Patents.
US3418504A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable electric motor driven power tool with separable plastic housing
Assignee: Robert Bosch GmbH
•
Filing: 1966-06-13
•
Granted: 1968-12-24
•
Expires: 1986-06-13
Abstract
No abstract record available.
Inventors
- 👤 Paule Kurt
- 👤 Armbruster Gerhard
- 👤 Kirn Manfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:38
CPC Classifications
B; B23; B23B; B23B45/00; B23B45/001; B23B45/008; H; H02; H02K; H02K7/00; H02K7/14; H02K7/145
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
IN AN ELECTRIC POWER TOOL, A HOUSING COMPRISING TWO SIMILAR SHELLS TOGEHTER DEFINING A CHAMBER AND HAVING ABUTTING MARGINAL PROTIONS; A METALLIC BEARING MEMBER PROVIDED IN SAID CHAMBER AND HAVING TWO PARALLEL BORES; FASTENER MEANS SECURING SAID BEARING MEMBER TO ONE OF SAID SHELLS; A TOOL SPINDLE HAVING A REAR PORTION EXTENDING INTO ONE OF SAID BORES, AN INTERMEDIATE PORTION AND A FRONT PORTION; AN ELECTRIC MOTOR INCLUDING AN OUTPUT SHAFT EXTENDING THROUGH THE OTHER OF SAID BORES AND HAVING A FRONT PORTION ADJACENT TO THE INTERMEDIATE PORTION OF SAID SPINDLE; AND A TRANSMISSION INCLUDING A GEAR TRAIN PROVIDING A MOTION TRANSMITTING CONNECTION BETWEEN THE FRONT PORTION OF SAID OUTPUT SHAFT AND THE INTERMEDIATE PORTION OF SAID SPINDLE, THE OTHER SHELL BEING SEPARABLE FROM SAID ONE SHELL TO AFFORD ACCESS TO SAID MOTOR, TO SAID TRANSMISSION AND TO SAID SPINDLE.
Claim 2
Dependent Claim
140 words
IN AN ELECTRIC POWER TOOL, A HOUSING COMPRISING TWO SIMILAR SHELLS TOGEHTER DEFINING A CHAMBER AND HAVING ABUTTING MARGINAL PROTIONS; A METALLIC BEARING MEMBER PROVIDED IN SAID CHAMBER AND HAVING TWO PARALLEL BORES; FASTENER MEANS SECURING SAID BEARING MEMBER TO ONE OF SAID SHELLS; A TOOL SPINDLE HAVING A REAR PORTION EXTENDING INTO ONE OF SAID BORES, AN INTERMEDIATE PORTION AND A FRONT PORTION; AN ELECTRIC MOTOR INCLUDING AN OUTPUT SHAFT EXTENDING THROUGH THE OTHER OF SAID BORES AND HAVING A FRONT PORTION ADJACENT TO THE INTERMEDIATE PORTION OF SAID SPINDLE; AND A TRANSMISSION INCLUDING A GEAR TRAIN PROVIDING A MOTION TRANSMITTING CONNECTION BETWEEN THE FRONT PORTION OF SAID OUTPUT SHAFT AND THE INTERMEDIATE PORTION OF SAID SPINDLE, THE OTHER SHELL BEING SEPARABLE FROM SAID ONE SHELL TO AFFORD ACCESS TO SAID MOTOR, TO SAID TRANSMISSION AND TO SAID SPINDLE.
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) | 1971-12-24 | 1972-06-24 | 1972-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-24 | 1976-06-24 | 1976-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-24 | 1980-06-24 | 1980-12-24 | $7700.00 | Window Closed / Lapsed |