Cap for a spray can, a spray can with the cap and a method for discharging residual liquid and gas in a spray can
US6000579A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 20, 1998 |
| Grant date | Dec 14, 1999 |
| Priority date | — |
| Expiry date | Jan 20, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D2231/005
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
The present invention provides a cap for a spray can which can discharge residual liquid and gas in a spray can safely at once and sufficiently afford to discharge a great deal of residual liquid. In another embodiment, the invention includes a spray can with the cap and a method for discharging residual liquid and gas in a spray can. The spray can has a recess or a projection on the top panel which is respectively engageable with the outer circumference or the inner circumference of an engage portion surrounding a stem of a can body, an insert hole into which the stem of the can body can be inserted being formed on the recess or the projection at the central part, a narrow portion with a diameter smaller than the outer diameter of the stem of the can body being formed below the insert hole, a stop plate against which residual liquid spouted from a discharge opening of the stem can be hit being arranged at a necessary portion below said narrow portion, two openings being formed at a connection portion of the narrow portion and the stop plate, the top panel of the cap being liquid-proof except for the insert hole, and spouted residual liquid which strikes against the stop plate jett…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.