Material dispensing method and apparatus with stall detect
US5908140A · kind A · utility
79Cited by
22References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 21, 1997 |
| Grant date | Jun 1, 1999 |
| Priority date | — |
| Expiry date | Aug 21, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B12/02
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An apparatus for dispensing material from a container having a dispensing element includes a motor for repeatedly actuating the dispensing element to facilitate dispensing of the material from the container and a controller for activating the motor at predetermined time intervals. The apparatus includes a stall detection circuit coupled to the motor and to the controller to detect a stall condition of the motor, the stall detection circuit configured to issue a stall detection signal when the stall condition is detected. The controller deactivates the motor in response to receiving the stall detection signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.