公开(公告)号：US11767839B2

公开(公告)日：2023-09-26

申请号：US17587147

申请日：2022-01-28

申请人： StakPac, LLC

发明人： Patrick Kenneth Powell

IPC分类号： F04B45/02 ,  F04B43/107 ,  F04B33/00 ,  F04B43/08 ,  F04B43/10 ,  F04B43/113 ,  A47C27/08

CPC分类号： F04B45/022 ,  A47C27/081 ,  A47C27/084 ,  F04B33/00 ,  F04B43/08 ,  F04B43/086 ,  F04B43/10 ,  F04B43/107 ,  F04B43/1136 ,  F04B45/02 ,  F04B45/024

摘要： A vacuum pump includes a hollow container that has a vacuum port and internal chamber walls. The vacuum port opens to an exterior of the container and the chamber walls define chambers that are in fluid communication with the vacuum port. There are flexible bladders disposed in the chambers. The flexible bladders include vents that open through the container to the exterior. A plunger in the container includes arms that extend into the chambers such that each of the flexible bladders is situated between one of the arms and one of the chamber walls. The plunger is moveable between a home position and an upstroke position to compress and deflate the flexible bladders via the vents and thereby change the volume of the flexible bladders. The change in the volume draws a vacuum through the vacuum port.

公开(公告)号：US20220154712A1

公开(公告)日：2022-05-19

申请号：US17587147

申请日：2022-01-28

申请人： StakPac, LLC

发明人： Patrick Kenneth Powell

IPC分类号： F04B45/02 ,  F04B43/08 ,  F04B43/10 ,  F04B43/113 ,  F04B45/06

摘要： A vacuum pump includes a hollow container that has a vacuum port and internal chamber walls. The vacuum port opens to an exterior of the container and the chamber walls define chambers that are in fluid communication with the vacuum port. There are flexible bladders disposed in the chambers. The flexible bladders include vents that open through the container to the exterior. A plunger in the container includes arms that extend into the chambers such that each of the flexible bladders is situated between one of the arms and one of the chamber walls. The plunger is moveable between a home position and an upstroke position to compress and deflate the flexible bladders via the vents and thereby change the volume of the flexible bladders. The change in the volume draws a vacuum through the vacuum port.