Pneumatic wand apparatus and method
US5454407A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 5, 1994 |
| Grant date | Oct 3, 1995 |
| Priority date | — |
| Expiry date | Aug 5, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60P7/065
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
Apparatus and method are provided for the essentially automatic filling with pressurized ambient air of non-elastic inflatable objects to predetermined overpressures; and operate through the creation and sensing of a fluidic effect in the inflatable object attendant the filling of the same, the discontinuation of that fluidic effect when the inflatable object has been filled to the predetermined overpressure, the sensing of the discontinuation of the fluidic effect and the discontinuation of the supply of pressurized air to the inflatable object in response thereto. Provisions are made for adjustment in the predetermined overpressure to which the inflatable object is filled, and for reversing the operation of the apparatus and method to deflate inflated objects for re-use. The apparatus and method are particularly adapted to the filling of non-elastic dunnage bags in situ in cargo shipping containers to protect shock sensitive cargoes, and to the deflation of the same at the point of cargo destination for economic dunnage bag re-use.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.