Sealless dispensing apparatus
US5277342A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 11, 1992 |
| Grant date | Jan 11, 1994 |
| Priority date | — |
| Expiry date | Dec 11, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05C17/00569
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A dispensing apparatus capable of dispensing a wide variety of fluids, such as adhesives, is provided. The structure of the apparatus allows it to be miniaturized, thereby facilitating its use for many applications. The apparatus includes a cylindrical housing in which a slide is mounted. The housing includes a fluid reservoir which is supplied with pressurized fluid. A longitudinal passage extends through the slide for providing this fluid to the reservoir. A bellow seal is employed for sealing off an actuating mechanism from the reservoir. The seal is connected between the slide and a support fixedly mounted to the housing. A valve mechanism is provided at one end of the housing for controlling the flow of fluid from the reservoir. The valve mechanism is directly or indirectly responsive to the slide. Fluid may be caused to flow through the valve mechanism either by fluid pressure or by positive displacement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.