Scrub sponge with alignment bosses
US4478530A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 25, 1983 |
| Grant date | Oct 23, 1984 |
| Priority date | — |
| Expiry date | Apr 25, 2003 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA45D2200/1045
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A scrub sponge comprising, a packet having a rupturable wall and a closed chamber containing a liquid scrub agent. The sponge has a cover of foam material having a cavity to receive the packet and enclosing the packet. The sponge also has a puncture member intermediate the cover and the packet and having a pair of generally aligned and spaced arms on opposed sides of the packet beneath the cover, and hinge means connecting the arms adjacent one end of the packet. The puncture member has a sharp projection on each of the arms directed toward the packet to pierce the wall when the arms are pressed toward each other to release the scrub agent into the cover, with the projection on one of the arms being spaced slightly from the projection on the other arm. The puncture member has an opening extending through the arms adjacent each of the projections, and an alignment boss on each of the arms intermediate the projections and the hinge means. The bosses are aligned and have an oppositely directed tapered surface facing toward the packet, and the bosses nearly engage when the arms are pressed toward each other to guide the projections.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.