# US 8,464,749 B2 · Gas bottle valve body protective device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,464,749 B2 - Document ID: US8464749B2 - Status: Granted - Kind: B2 - Application number: 12/929,373 - Filed: 2011-01-19 - Published: 2011-09-01 - Granted: 2013-06-18 - Earliest claimed: 2006-09-15 - Assignees: Protective Industries, Inc. - Applicants: Frederick W. Zeyfang - Inventors: Frederick W. Zeyfang - Web page: https://patentgrep.com/patent/US8464749B2 ## CPC - F17C 13/002: {for vessels under pressure (F17C13/008 and F17C13/02 - F17C13/12 take precedence)} - F17C 2205/0308: Protective caps - F17C 2221/011: Oxygen - F17C 2221/014: Nitrogen - F17C 2223/0123: gaseous, e.g. CNG, GNC - F17C 2270/02: for medical applications - F17C 2270/05: for industrial use - F17C 2270/0745: Gas bottles - Y10T 137/7062: Valve guards - F17C: VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES (storing fluids in natural or artificial cavities or chambers in the earth B65G5/00; construction or assembling of bulk storage containers employing civil-engineering techniques E04H7/00; variable-capacity gas-holders F17B; liquefaction or refrigeration machines, plants, or systems F25) - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract A protective sleeve for gas bottle valve stems is provided comprised of an elongated tubular body configured to fit on a valve stem. At least one projection extends from an interior surface of the protective sleeve and is adapted to lockingly engage with at least one orifice in an opposing surface of the valve stem whereby the sleeve is prevented from being easily removed from the valve stem upon being placed thereover due to engagement of the projection with the orifice. A tear strip is provided within a side surface of the protective sleeve, whereby a portion of the protective sleeve may be removed to permit disengagement of the protective sleeve. A housing may be provided in the protective sleeve for storage of a washer which may be used to provide a seal between a regulator and the valve stem of the gas bottle. At least one flange extends laterally from the sleeve body and is configured to engage a thumb or finger of the user to assist in placing the protective sleeve upon the valve stem of the gas cylinder by application of downward force, the at least one flange positioned along the longitudinal extent of the protective sleeve between the ends of the protective sleeve. ## Claims ### Claim 1 A protective device for use in connection with a four-sided valve body for gas bottles, said valve body having a gas port, said protective device comprised of: a unitary molded tubular body comprising four sides and having opposite open ends, at least one projection extending from an interior surface of said protective device adapted to physically engage with a portion of an opposing surface of said valve body, whereby said protective device is prevented from being easily removed from said valve body upon being placed over an end of said valve body due to engagement of said at least one projection with said portion of said opposing surface of said valve body, said tubular body having such size and configuration such that the sides of said tubular body are each adjacent to a corresponding portion of an opposing side of said valve body, with a portion of one of said sides of said tubular body covering said gas port in said valve body, when said protective device is placed over said valve body in engagement therewith, at least one tear strip provided within at least a portion of at least one side surface of said protective device, whereby tearing said tear strip permits disengagement and removal of said protective device from said valve body, a grip member attached to a portion of said tear strip to facilitate tearing of said tear strip, and wherein said device includes two flanges extending laterally outwardly from opposite sides of said device. ### Claim 2 (depends on 1) The protective device of claim 1, wherein said tear strip extends longitudinally along a portion of a side of said protective device, and is defined laterally by parallel tear lines formed in said side of said protective device. ### Claim 3 (depends on 2) The protective device of claim 2, wherein said tear lines extend along a longitudinal extent of said protective device. ### Claim 4 (depends on 1) The protective device of claim 1, comprised of a moldable plastic resin material. ### Claim 5 (depends on 1) The protective device of claim 1, wherein multiple projections are present for engagement in multiple portions of said valve body. ### Claim 6 (depends on 1) The protective device of claim 1, wherein said at least one projection includes a shoulder portion that lockingly engages a portion of said opposing surface to inhibit removal of said protective device from said valve body. ### Claim 7 (depends on 1) The protective device of claim 1, further including a housing for storage of a washer. ### Claim 8 (depends on 7) The protective device of claim 7, wherein said at least one projection is located in said washer housing and also serves to engage a washer to retain same in said housing. ### Claim 9 (depends on 7) The protective device of claim 7, wherein said housing for storage of said washer has a portion adapted to physically engage with an interior hole of said washer to hold said washer in place within said housing. ### Claim 10 (depends on 7) The protective device of claim 7, wherein said housing for storage of said washer has a portion adapted to physically engage with an interior hole of said washer to hold said washer in place within said housing. ### Claim 11 (depends on 1) The protective device of claim 1, wherein said flanges are arcuate in configuration. ### Claim 12 (depends on 1) The protective device of claim 1, wherein said opposing sides are adjacent to a side from which said grip member extends, and wherein a side from whose interior surface said projection resides is opposite to said side having said tear strip. ### Claim 13 (depends on 1) The protective device of claim 1, wherein said opposing sides are adjacent to a side from which said grip member extends, and wherein said projection resides on the same side having said tear strip. ### Claim 14 (depends on 1) The protective device of claim 1, wherein said flanges are located at the bottom of said protective device. ### Claim 15 (depends on 1) The protective device of claim 1, wherein said flanges are located at a position intermediate the top and bottom of said protective device. ### Claim 16 (depends on 1) The protective device of claim 1, wherein said grip member is located at the bottom of said protective device, and said flanges are located at the bottom of said protective device. ### Claim 17 (depends on 1) The protective device of claim 1, wherein said grip member is located at the bottom of said protective device, and said flanges are located at a position intermediate the top and bottom of said protective device. ### Claim 18 (depends on 1) The protective device of claim 1, wherein said grip member is located at a position intermediate the top and bottom of said protective device, and said flanges are located at the bottom of said protective device. ### Claim 19 (depends on 1) The protective device of claim 1, wherein both said grip member and said flanges are located at a position intermediate the top and bottom of said protective device. ### Claim 20 A protective device for use in connection with a valve body for gas bottles, said valve body having a gas port, said protective device comprised of: a unitary molded body having opposite open ends, at least one projection extending from an interior surface of a side of said protective device and adapted to physically engage with said gas port in an opposing surface of said valve body in locking engagement whereby said protective device is prevented from being easily removed from said valve body upon being placed over an end of said valve body due to engagement of said projection with said gas port, said body having such size and configuration such that the sides of said body are each adjacent to a corresponding portion of an opposing side of said valve body, with a portion of one of said sides of said body covering said gas port in said valve body, when said protective device is placed over said valve body in engagement therewith, at least one tear strip provided within at least a portion of at least one side surface of said protective device, whereby tearing said tear strip permits disengagement and removal of said protective device from said valve body, and a grip member attached to a portion of said tear strip to facilitate tearing of said tear strip, wherein said device includes two flanges extending laterally outwardly from opposite sides of said device. ### Claim 21 (depends on 20) The protective device of claim 20, wherein said tear strip extends longitudinally along a portion of a side of said protective device. ### Claim 22 (depends on 21) The protective device of claim 21, wherein said tear strip is defined by tear lines which extend along a longitudinal extent of said protective device. ### Claim 23 (depends on 20) The protective device of claim 20, comprised of a plastic resin material. ### Claim 24 (depends on 20) The protective device of claim 20, wherein multiple projections are present for engagement in multiple portions of an opposing surface in said valve body. ### Claim 25 (depends on 20) The protective device of claim 20, wherein said at least one projection includes a shoulder portion that lockingly engages an adjacent portion of said opposing surface of said valve body to inhibit removal of said protective device from said valve body. ### Claim 26 (depends on 20) The protective device of claim 20, wherein said device includes a housing for storage of a washer. ### Claim 27 (depends on 20) The protective device of claim 20, wherein said tear strip and said projection reside on opposite sides of said protective device. ### Claim 28 (depends on 1) The protective device of claim 1, wherein said flanges extend laterally outwardly from said tubular body and are configured to engage a thumb or finger of the user to assist in placing the protective device upon the valve body of the gas cylinder by application of downward force. ### Claim 29 (depends on 20) The protective device of claim 20, wherein said unitary molded body has four sides. ### Claim 30 A protective device for use in connection with a four-sided valve body for gas bottles, said valve body having a gas port, said protective device comprised of: a unitary molded tubular body comprising four sides and having opposite open ends, at least one projection extending from an interior surface of said protective device adapted to physically engage with a portion of an opposing surface of said valve body, whereby said protective device is prevented from being easily removed from said valve body upon being placed over an end of said valve body whereby said at least one projection is moved into engagement with said portion of said opposing surface of said valve body, said tubular body having such size and configuration such that the sides of said tubular body are each adjacent to a corresponding portion of an opposing side of said valve body, with a portion of one of said sides of said tubular body covering said gas port in said valve body, when said protective device is placed over said valve body into engagement therewith, at least one tear strip provided within at least a portion of at least one side surface of said protective device, whereby tearing said tear strip permits disengagement and removal of said protective device from said valve body, a grip member attached to a portion of said tear strip to facilitate tearing of said tear strip, and at least one flange extending laterally outwardly from said tubular body, wherein said at least one flange is located at a position intermediate the top and bottom of said protective device. ### Claim 31 (depends on 30) The protective device of claim 30, wherein said grip member is located at the bottom of said protective device. ### Claim 32 (depends on 30) The protective device of claim 30, wherein both said grip member and said at least one flange are located at a position intermediate the top and bottom of said protective device. ### Claim 33 (depends on 30) The protective device of claim 30, wherein a single flange extends from a side opposite to a side from which said finger grip extends. ### Claim 34 (depends on 30) The protective device of claim 30, wherein multiple flanges are present. ### Claim 35 A protective device for use in connection with a four-sided valve body for gas bottles, said valve body having a gas port, said protective device comprised of: a unitary molded tubular body comprising four sides and having opposite open ends, at least one projection extending from an interior surface of said protective device adapted to physically engage with a portion of an opposing surface of said valve body, whereby said protective device is prevented from being easily removed from said valve body upon being placed over an end of said valve body and moved into engagement with said at least one projection within said portion of said opposing surface of said valve body, said tubular body having such size and configuration such that the sides of said tubular body are each adjacent to a corresponding portion of an opposing side of said valve body, with a portion of one of said sides of said tubular body covering said gas port in said valve body, when said protective device is placed over said valve body into engagement therewith, at least one tear strip provided within at least a portion of at least one side surface of said protective device, whereby tearing said tear strip permits disengagement and removal of said protective device from said valve body, a grip member attached to a portion of said tear strip to facilitate tearing of said tear strip, and wherein a single flange is present on said tubular body and extends from a side opposite to a side from which said grip member extends. ### Claim 36 (depends on 35) The protective device of claim 35, wherein said tear strip extends longitudinally along a portion of a side of said protective device, and is defined laterally by parallel tear lines formed in said side of said protective device. ### Claim 37 (depends on 36) The protective device of claim 36, wherein said tear lines extend along a longitudinal extent of said protective device. ### Claim 38 (depends on 35) The protective device of claim 35, comprised of a moldable plastic resin material. ### Claim 39 (depends on 35) The protective device of claim 35, wherein multiple projections are present for engagement in multiple portions of said valve body. ### Claim 40 (depends on 35) The protective device of claim 35, wherein said at least one projection includes a shoulder portion that lockingly engages a portion of said opposing surface to inhibit removal of said protective device from said valve body. ### Claim 41 (depends on 35) The protective device of claim 35, further including a housing for storage of a washer. ### Claim 42 (depends on 41) The protective device of claim 41, wherein said at least one projection is located in said washer housing and also serves to engage a washer to retain same in said housing. ### Claim 43 (depends on 35) The protective device of claim 35, wherein said flange is arcuate in configuration. ### Claim 44 A protective device for use in connection with a four-sided valve body for gas bottles, said valve body having a gas port, said protective device comprised of: a unitary molded tubular body comprising four sides and having opposite open ends, at least one projection extending from an interior surface of said protective device adapted to physically engage with a portion of an opposing surface of said valve body, whereby said protective device is prevented from being easily removed from said valve body upon being placed over an end of said valve stem and moved into engagement of said at least one projection with said portion of said opposing surface of said valve body, said tubular body having such size and configuration such that the sides of said tubular body are each adjacent to a corresponding portion of an opposing side of said valve body, with a portion of one of said sides of said tubular body covering said gas port in said valve body, when said protective device is placed over said valve body into engagement therewith, at least one tear strip provided within at least a portion of at least one side surface of said protective device, whereby tearing said tear strip permits disengagement and removal of said protective device from said valve body, a grip member attached to a portion of said tear strip to facilitate tearing of said tear strip, and at least one flange extending laterally outwardly from said tubular body, wherein said device includes a housing for storage of a washer which extends along an outside wall of said protective device. ### Claim 45 (depends on 44) The protective device of claim 44, wherein said tear strip extends longitudinally along a portion of a side of said protective device, and is defined laterally by parallel tear lines formed in said side of said protective device. ### Claim 46 (depends on 45) The protective device of claim 45, wherein said tear lines extend along a longitudinal extent of said protective device. ### Claim 47 (depends on 44) The protective device of claim 44, comprised of a moldable plastic resin material. ### Claim 48 (depends on 44) The protective device of claim 44, wherein multiple projections are present for engagement in multiple portions of said valve body. ### Claim 49 (depends on 44) The protective device of claim 44, wherein said at least one projection includes a shoulder portion that lockingly engages a portion of said opposing surface to inhibit removal of said protective device from said valve body. ### Claim 50 (depends on 44) The protective device of claim 44, wherein said at least one flange is arcuate in configuration. ### Claim 51 (depends on 44) The protective device of claim 44, wherein said housing for storage of said washer has a portion adapted to physically engage with an interior hole of said washer to hold said washer in place within said housing. ### Claim 52 (depends on 44) The protective device of claim 44, wherein multiple flanges are present.