Self-propelled, electric, three wheel maintenance cart
Abstract
Abstract The invention includes a three-wheeled, self-propelled, all purpose vehicle with a large cart-type body, driven by an electric motor on a box-shaped slotted fork just forward of the handlebars and utilizing storage batteries, connected in series, with provision for recharging, with a power train to connect and drive a single, front traction wheel, and with a banana seat for the operator, just behind the motor, over a control box fitted with speed control and reverse lever setting contacts, and brake and on-off pedals at the front end of a large cart bed area with a low center of gravity, and with box-type seats running longitudinally along both sides of the cart for the storage batteries, and also with a high tailgate in rear, when the UP position, but for use in the DOWN position as a low-angle ramp. The cart operates air pollution free. Maintenance is simple because both the motor and the batteries are easily accessible, Use inside buildings or warehouses as well as outside on pavements, turf or bare ground is favored because of its quite operation, freedom from exhaust fumes and safely from fire or explosion because there is no flammable fuel tank.
Inventors
- 👤 Vern Alvin Brueske
Bibliographic Details
Claims Analysis
Total Claims: 3References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-29 | 1974-09-28 | 1975-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-29 | 1978-09-28 | 1979-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-29 | 1982-09-28 | 1983-03-30 | $7700.00 | Window Closed / Lapsed |