Jul 28, 2026

US12693092 - Pressurized gas vessel and piercing mechanism

High pressure compressed gas pressure vessels and devices utilizing such vessels are disclosed herein. More particularly, aspects of the present invention are directed to high pressure (i.e., nitrogen or N2 based) pressurized gas cylinders with pierceable membranes recessed from the opening of the pressure vessel such that prior art piercing mechanisms cannot pierce the membrane for safety purposes. Additionally, aspects of the present invention are directed to pressurized gas operated devices with elongated pins for piercing pressure vessels with recessed pierceable membranes.

Assignee: BANZA STAMPING INDUSTRY CORPORATION
Inventors: Li-Wei Chen, Tsang-Yao Lu, Min-Yan Xie
Filing date: 2024-05-16

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The patent describes a pressurized gas vessel designed with a recessed pierceable membrane to enhance safety by preventing accidental piercing from conventional mechanisms. It includes a hollow body and a cap that securely contain compressed nitrogen, ensuring the membrane remains protected within the vessel.

Claim 1

1 . A pressure vessel comprising: a hollow body having exactly one opening; and a cap comprising: a shoulder having a bottom surface configured to abut the hollow body about the opening in the hollow body when the pressure vessel is assembled, wherein the shoulder is generally planar having a hole therethrough; a sidewall extending longitudinally and perpendicularly from the bottom surface of the shoulder about the hole, said sidewall having a central opening; and a membrane closing off the central opening, wherein the membrane is longitudinally offset from the shoulder; wherein: the sidewall extends into the opening of the hollow body when the pressure vessel is assembled such that the membrane is recessed into the hollow body; the bottom surface of the shoulder is affixed to the hollow body about the opening of the hollow body when the pressure vessel is assembled; and the hollow body and cap cooperate to contain compressed nitrogen within the hollow body when the pressure vessel is assembled. a hollow body having exactly one opening; and a cap comprising: a shoulder having a bottom surface configured to abut the hollow body about the opening in the hollow body when the pressure vessel is assembled, wherein the shoulder is generally planar having a hole therethrough; a sidewall extending longitudinally and perpendicularly from the bottom surface of the shoulder about the hole, said sidewall having a central opening; and a membrane closing off the central opening, wherein the membrane is longitudinally offset from the shoulder; a shoulder having a bottom surface configured to abut the hollow body about the opening in the hollow body when the pressure vessel is assembled, wherein the shoulder is generally planar having a hole therethrough; a sidewall extending longitudinally and perpendicularly from the bottom surface of the shoulder about the hole, said sidewall having a central opening; and a membrane closing off the central opening, wherein the membrane is longitudinally offset from the shoulder; wherein: the sidewall extends into the opening of the hollow body when the pressure vessel is assembled such that the membrane is recessed into the hollow body; the bottom surface of the shoulder is affixed to the hollow body about the opening of the hollow body when the pressure vessel is assembled; and the hollow body and cap cooperate to contain compressed nitrogen within the hollow body when the pressure vessel is assembled. the sidewall extends into the opening of the hollow body when the pressure vessel is assembled such that the membrane is recessed into the hollow body; the bottom surface of the shoulder is affixed to the hollow body about the opening of the hollow body when the pressure vessel is assembled; and the hollow body and cap cooperate to contain compressed nitrogen within the hollow body when the pressure vessel is assembled.

Google Patents

https://patents.google.com/patent/US12693092

USPTO PDF

https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/12693092