Grease gun with pump prime indicator
US11002407B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 7, 2019 |
| Grant date | May 11, 2021 |
| Priority date | — |
| Expiry date | Nov 7, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16N2260/12
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A grease dispensing device includes a grease drive system for moving grease through grease passaging. A sensor is arranged to sense grease in the grease passaging and to generate sensor data related thereto. After a delay period, a prime indicator changes between first and second states based on the sensor data to indicate whether or not the grease dispensing device is primed with grease. The grease dispensing device also includes a grease controller operatively connected to the sensor and the prime indicator. The grease dispensing device monitors the sensor data to determine whether the grease dispensing device is primed with grease and controls the operation of the prime indicator accordingly. The grease controller includes a tangible storage medium which stores executable instructions to change the state of the prime indicator based on the sensor data and to delay changing the state of the prime indicator for the delay period after the controller determines the grease dispensing device is not primed with grease.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.