公开(公告)号：US20220080232A1

公开(公告)日：2022-03-17

申请号：US17478367

申请日：2021-09-17

Applicant: ZVerse, Inc.

Inventor： Michael J. Piatt

IPC: A62B23/02 ,  A62B18/08 ,  A62B18/00 ,  A41D13/11 ,  B01D46/52 ,  B01D46/00 ,  B01D46/44 ,  B01D46/42

Abstract: The present disclosure delineates both active as well as passive respiratory filtration systems. The respiratory filtration systems are configured to be worn by a user, providing the user protection from the ambient environment, possibly containing microorganisms, pathogens, particulate matter, and the like. The respiratory filtration system is also designed to protect others by filtering the exhalation air released into the environment by the user. The disclosed respiratory filtration system(s) are comprised from one or more hygienic materials. The hygienic materials are carefully selected and disposed at predetermined locations within the respiratory filtration system, so to optimize user to the observer(s) communications, especially the oronasal cover. Optimized communications include the transmission of distortion-free speech and/or unobstructed view of the user's oronasal area, especially the mouth.

公开(公告)号：US11202476B2

公开(公告)日：2021-12-21

申请号：US17326939

申请日：2021-05-21

Applicant: ZVerse, Inc.

Inventor： Michael J. Piatt

IPC: A41D13/11

Abstract: A continuous elongated ring configured to engage a filtration textile to a nose-mouth perimeter of a user, said continuous elongated ring including an upper curvilinear portion adapted to engage said filtration textile disposed about a nasal periphery of the user; said upper curvilinear portion including a pair of attachment features adapted to fastenly receive an upper support strap configured to engage the user's head, and a lower curvilinear portion adapted to engage said filtration textile disposed about a mouth periphery of the user, the lower curvilinear portion including a pair of attachment features adapted to fastenly receive a lower support strap configured to engage the user's head.

公开(公告)号：US20180169698A1

公开(公告)日：2018-06-21

申请号：US15577948

申请日：2016-05-26

Applicant: ZVERSE, Inc.

Inventor： James W. KRONBERG

IPC: B05D3/06 ,  B05D1/02 ,  B05D1/18 ,  B05D3/02 ,  B05D7/00 ,  C09D167/06

CPC classification number: B05D3/067 ,  B05D1/02 ,  B05D1/18 ,  B05D3/0236 ,  B05D7/577 ,  B33Y80/00 ,  B33Y99/00 ,  C09D167/06

Abstract: A process for imparting improved toughness and durability, improving the surface appearance, and enhancing the coloration of a porous gypsum article created by 3D printing, casting or other means. The process includes the steps of first warming and drying the article; next, dipping it while warm into a bath of ultraviolet-activated liquid polyester resin at a lower temperature than the article, so the heat of the article lowers the resin's viscosity as air in the pores contracts and draws the resin in. The resin is chosen to have an index of refraction after curing as close as possible to that of pure gypsum. The resin is cured with ultraviolet light before applying a surface finishing coat to the cured resin by a second dipping into the same resin followed by curing or by spray-painting or other coating technique.