Insulation injection device
US12000139B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 14, 2020 |
| Grant date | Jun 4, 2024 |
| Priority date | — |
| Expiry date | Aug 20, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/776
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A thermal insulation injection gun includes a pointed nozzle that prevents blocking of the nozzle by a distal panel of a building cavity and/or by pre-existing insulation within the cavity. In embodiments, the pointed nozzle can be pressed through a panel, thereby forming the injection hole. An enhancement port can be provided through which an enhancing material such as a carrier fluid, particulate or fibrous insulating material, a binder, or a fire retardant can be added and mixed with the insulating material. Embodiments include expanding nozzle wings that can compress pre-existing insulation to create a space on a proximal or distal side thereof for injecting the insulation. A compressible sheath installed over the nozzle can prevent dripping of excess insulation from the panel hole. Exchangeable collars can be used to fix an insertion depth of the nozzle and/or to block selected lateral dispensing ports of the nozzle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.