High-negative-pressure composite hard suction cup
US10030690B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 10, 2015 |
| Grant date | Jul 24, 2018 |
| Priority date | — |
| Expiry date | Jan 13, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B5/22
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The high-negative-pressure composite hard suction cup has a main member made of a hard, composite material tightly joined to a highly flexible washer made of soft plastic along a bottom side. The main member is configured with a vacuuming mechanism to another side. The vacuuming mechanism includes a piston chamber, one-way valve, piston assembly, and spring. A vacuum alarming assembly is configured on the piston assembly. When a degree of vacuum between the hard suction cup and an object attached is less than satisfactory, an audio or visual alarm is issued and an alert marking is revealed to notify a user to take appropriate action so that the hard suction cup remains reliably attached to the object.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.