Vibrating chair with shrink-wrapped vibrator
US6110131A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 28, 1998 |
| Grant date | Aug 29, 2000 |
| Priority date | — |
| Expiry date | May 28, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61H2201/0149
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A vibrating massage furniture cushion and a method for making such cushion is provided. The cushion is created by enclosing an electric motor-driven vibrator in a flexible material, such as a shrink-wrap plastic material, suspending the vibrator within a cushion-making form and creating the foam cushion by reacting one or more foam precursor chemicals within the form. As the foam is created, it automatically envelopes the vibrator, thereby rigidly retaining the vibrator in place within the cushion. Because the vibrator has been surrounded with the thin flexible material, the foam cannot enter the motor area during the foam creation step. Therefore, the foam creation step does not damage the motor or otherwise make it inoperable. The invention provides a simple and efficient way of making cushion-containing vibration massage articles without having to go through the step of sculpting out a recess for the vibrator within a finished cushion article.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.