Live roller conveyor
Abstract
Abstract In a live roller conveyor wherein rollers each with an axle are held between a pair of rails, with drive means in engagement with the rollers, an arrangement to stop all or a group of previous rollers should one roller stop, to prevent excess pressure due to the bunching of material carried by the conveyor, comprising, live rollers generally spaced apart a distance less than the roller diameter; a guide rail under the live rollers; an arm connected to said guide rail having a free end; and at least one brake wheel disposed between succeeding live rollers and held by said arm, the center of the brake wheel being above the centerline of the live rollers, whereby, when one live roller is stopped, the brake wheel will wedge between the stopped roller and the roller immediately preceding it causing a chain reaction between all preceding brake wheels and the corresponding rollers.
Inventors
- 👤 Richard W Lowrie
Bibliographic Details
Claims Analysis
Total Claims: 6References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-23 | 1975-02-22 | 1975-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-23 | 1979-02-22 | 1979-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-23 | 1983-02-22 | 1983-08-24 | $7700.00 | Window Closed / Lapsed |