Patent ID: 11952201
Assignee: nan
Field: Handling (Mechanical engineering)
Classification: CPC B | IPC B

Claim 4:
5. A gravity-oriented one-way valve container method for automatically opening and closing a container of contents with no intrusion of air, comprising:
(i) providing a gravity-oriented one-way valve container apparatus, comprising:
(a) a container body;
(b) at least one ventilation hole in said container body, adapted to allow rapid equilibration of air pressure within said container body;
(c) a bladder mounted inside said container body, adapted to contain contents and exclude air;
(d) a valve adapted to automatically seal said bladder when said container body is in a vertical orientation and to automatically unseal said bladder when said container body is in a tilted orientation;
(e) holes in the upper neck of said container body;
(f) a neck seat mounted in the lower neck of said container; and
(g) a ball movably encompassed by the neck of said container body, above said neck seat.

(ii) using said gravity-oriented one-way valve container apparatus, where, in use, when said container body is in a vertical orientation it is sealed, and when said container body is in a tilted orientation it is unsealed.