Vacuum cleaning apparatus
US3997936A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 24, 1975 |
| Grant date | Dec 21, 1976 |
| Priority date | — |
| Expiry date | Nov 24, 1995 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01G15/82
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Apparatus for removing waste, lint, dust, dirt and other accumulations of solid matter from the underside of machinery, especially textile machinery such as carding machines while the latter is in operation or not, comprising a frame designed to be installed beneath the machine on the floor on which there is reciprocally mounted a wiper arranged to travel over the floor in reciprocation so as to traverse the entire area beneath the machine, vacuum chambers at two of the opposite ends of the frame having open sides parallel to the wiper which are closed by the wiper when the latter reaches an end position and a timer operable to connect the chambers to a vacuum source as the wipers are moved to a position closing them to remove the waste swept into the chambers by the wiper. The opposite ends of the vacuum chambers are open and the vacuum connections to the chambers are situated at the mid-length thereof so that strong drafts are created as the air rushes into the open ends along the floor to the vacuum connections at mid-length which augment the lifting effect on the fibers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.