Dismiss
InnovationQ will be updated on Sunday, Oct. 22, from 10am ET - noon. You may experience brief service interruptions during that time.
Browse Prior Art Database

THE HAMLIN CLEANROOM BOOTIE

IP.com Disclosure Number: IPCOM000006790D
Original Publication Date: 1993-Mar-01
Included in the Prior Art Database: 2002-Feb-01
Document File: 2 page(s) / 114K

Publishing Venue

Motorola

Related People

Jay T. Hamlin: AUTHOR

Abstract

This invention is a Class 10 cleanroom bootie. This cleanroom bootie is designed so that the "upper" is detachable for laundering purposes. The shoe itself is intended not to leave the "clean" area of the cleanroom. Each person accessing the cleanroom will have a dedi- cated pair of the lower portion of the Hamlin Cleanroom Bootie. The upper portion of the bootie is not dedicated and can be readily changed with other Hamlin Cleanroom Bootie uppers. The shoe section of the bootie is worn directly on the foot of the wearer (socks should be worn over the foot as normal). This bootie is constructed of materials allowing this shoe to be non-particolating. The purpose of this shoe is to contain particles normally released from lower legs and feet of the wearer and to not generate any substantial quantities of particles itself. See Exhibit 1.

This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 50% of the total text.

Page 1 of 2

MO-LA INC. Technical Developments Volume 18 March 1993

THE HAMLIN CLEANROOM BOOTIE

by Jay T. Hamlin

1) DESCRlPTlON OF STRUCTURE, OPERATION, PURPOSE AND ENVIRONMENT

  This invention is a Class 10 cleanroom bootie. This cleanroom bootie is designed so that the "upper" is detachable for laundering purposes. The shoe itself is intended not to leave the "clean" area of the cleanroom. Each person accessing the cleanroom will have a dedi- cated pair of the lower portion of the Hamlin Cleanroom Bootie. The upper portion of the bootie is not dedicated and can be readily changed with other Hamlin Cleanroom Bootie uppers. The shoe section of the bootie is worn directly on the foot of the wearer (socks should be worn over the foot as normal). This bootie is constructed of materials allowing this shoe to be non-particolating. The purpose of this shoe is to contain particles normally released from lower legs and feet of the wearer and to not generate any substantial quantities of particles itself. See Exhibit 1.

  Construction of the Hamlii Cleanroom Bootie con- sists of sewing a clean strip of velcro (male portion) along the lower edge of the cleanroom upper. The upper is constructed of any of many cleanroom approved fab- rics (i.e. polyester, Gore-Tex). The female portion of the velcro is attached to the bottom edge of the shoe using permanent fabric cement in such a manner that when the male and female strips of velcro are properly mated, the upper will make a smooth uninterrupted seal with the bottom edge of the cleanroom shoe.

2) WHAT IMPROVEMENT OVER THE PRIOR ART IS ACCOMPLISHED BY THIS INVENTION?

There are three improvements that the Hamlin Cleanroom Booties provide over prior art.
a) The Hamlin Cleanroom Booties are much more dura- ble and cleaner. They will not degragate when worn in a Class 10 cleanroom which utilizes a flow-through floor. Flow through floors allow laminar airflow to penetrate the floor via holes or perforations in the floor tiles. These holes or perforations are also quite abrasive on the soles

e Motorola. Inc. ,993

of normal cleanroom shoes. Notable large (visible) par- ticles and small (non-visible) particles are generated by the process of walking across these flow-through floors. The particles generated by this walking action is highly undesirable.
b) The Hamlin Cleanroom Bootie is more comfortable to wear than the prior art cleanroom bootie. The Hamlin CIeanmom Bootie utilizes a commercial sport shoe which is designed for comfort. F'rior art utilizes a overshoe con- cept. This means that the cleanroom booties is worn over "street shoes:' This procedure is quite uncomforta- ble d...