Massaging apparatus having transformable pad
US5836900A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 19, 1997 |
| Grant date | Nov 17, 1998 |
| Priority date | — |
| Expiry date | Mar 19, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S5/933
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A massaging apparatus includes a foam pad having top and bottom profiles and a composite volume VC of foam; and a vibrator coupled to the foam pad for vibrating the pad. The pad is formed including a first foam phase defining the bottom profile and having a first phase volume V1 being not less than approximately 50 percent of the volume VC, and a second foam phase defining at least a portion of the top profile and having a second phase volume V2 being a pin member projecting from proximate the side surface, through the solid portion of the threaded insert, and engaging the first structural member on opposite sides of the cavity, the pin member securing the threaded insert in the cavity. A method for forming the pad includes preparing a liquidic slow-curing first foam formulation; feeding the first foam formulation into a mold; preparing a liquidic faster-curing second foam formulation; after a first period of time following the step of feeding the first foam formulation, feeding the second foam formulation into the mold onto the first formulation; curing the formulations; removing the cured foam article from the mold; forming a cavity in the article being a foam pad; and assembling…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.