Gasket for precision-packaging substrate container
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B65D-053/02
B65D-085/30
B65D-085/86
출원번호
UP-0379578
(2006-04-21)
등록번호
US-7648041
(2010-02-22)
우선권정보
JP-2005-124448(2005-04-22)
발명자
/ 주소
Ueda, Shigeaki
Watanabe, Yasuyuki
출원인 / 주소
Kabushiki Kaisha Daihachikasei
대리인 / 주소
Judge Patent Associates
인용정보
피인용 횟수 :
12인용 특허 :
5
초록▼
A uniquely shaped gasket (6) suitable for a container for storage of substrate plates requiring precision packaging. When such plates are stored into a container body (2), and a container lid (3) is closed and then a lid lock is applied, a gasket's outward ledge (6b, 6c, 6d) is pressed downward by a
A uniquely shaped gasket (6) suitable for a container for storage of substrate plates requiring precision packaging. When such plates are stored into a container body (2), and a container lid (3) is closed and then a lid lock is applied, a gasket's outward ledge (6b, 6c, 6d) is pressed downward by an outward adjacent surface (3f) and deformed; consequently, the end of the ledge's tip (6d) will extend to fall in a seal channel (2d), in other words, to abut on a sectionally downward concave (2d), wherein the gasket (6) still keeps its elastic resiliency. As a result, if an air pressure difference occurs, the tip end (6d) will shift its abutting point. While the tip end (6d) moves, a minimum gap between the tip end (6d) and the channel surface (2d) occurs, and this gap will act as ventilation route to equalize the air pressure difference.
대표청구항▼
What is claimed is: 1. A container (1) comprising: an open-ended (2a) container body (2) formed with a substantially level inner ledge (2c) subjacently bordering the mouth (2a) of the container body, the inner ledge (2c) being recessed with a continuous, cross-sectionally arcuate channel (2d); a co
What is claimed is: 1. A container (1) comprising: an open-ended (2a) container body (2) formed with a substantially level inner ledge (2c) subjacently bordering the mouth (2a) of the container body, the inner ledge (2c) being recessed with a continuous, cross-sectionally arcuate channel (2d); a container lid (3) rimmed with a substantially level platelike section (3f, 3g) inwardly along which a continuous gasket-anchoring groove (3e) is formed; a cartridge section (2e), formed in the container body, for precision packaging a plurality of substrate plates; a gasket (6) formed with an anchoring portion (6a) fitted into the gasket-anchoring groove (3e) in the container lid (3), and a ledge portion (6b) extending along the platelike section (3f) of the container lid (3) and bending (6c, 6d) into a tip formed so as to seat in the arcuate channel (2d) in the inner ledge (2c) of the container body (2) when the container lid (3) is closed onto the container body (2), yet so as to maintain a predetermined gap (C) between the gasket (6) and the inner ledge (2c); wherein the gap, the resiliency of the gasket and its bent form, and the shape of the channel are predetermined so that in response to a difference in pressure between the interior and exterior of the container body when the container lid is closed over the container body, the tip slides out of the channel, whereby the seal is momentarily broken, the pressure difference equalizes, and the tip again seats into the channel. 2. A container comprising: an open-ended container body formed with a substantially level inner ledge subjacently bordering the mouth of the container body, the inner ledge being recessed with a continuous, cross-sectionally arcuate channel; a container lid rimmed with a substantially level platelike section inwardly along which a continuous gasket-anchoring groove is formed; a cartridge section, formed in the container body, for precision packaging a plurality of substrate plates; an elastically resilient gasket (6) formed with an upright anchoring wall (6a) fitted into the gasket-anchoring groove in the container lid, a short inward ledge portion (6e), and an outward ledge portion (6b), longer than the inward ledge portion (6e ) but thinner than the inward ledge portion (6e) by a predetermined difference (D) between the outward ledge portion (6b) and the platelike section, the outward ledge portion (6b) extending along the platelike section of the container lid, and midway bending (6g, 6c) toward the inner ledge of the container body and distally hooking into a tip (6d) formed so as to seat in the arcuate channel in the inner ledge when the container lid is closed onto the container body, and to be longer than the depth of the channel so as to maintain a predetermined gap between the gasket (6) and the inner ledge; wherein the gap, the resiliency of the gasket and its bent and hooked-tip form, and the shape of the channel are predetermined so that in response to a difference in pressure between the interior and exterior of the container body when the container lid is closed over the container body, the tip slides out of the channel, whereby the seal is momentarily broken, the pressure difference equalizes, and the tip again seats into the channel. 3. A container as set forth in claim 2, wherein the difference (D) between the thickness of the inward ledge portion and the outward ledge portion is approximately 1 to 4 mm in practice. 4. A gasket for installation in a container having an open-ended container body formed with a substantially level inner ledge subjacently bordering the mouth of the container body, the inner ledge being recessed with a continuous, cross-sectionally arcuate channel, having a container lid rimmed with a substantially level platelike section inwardly along which a continuous gasket-anchoring groove is formed, and having a cartridge section, formed in the container body, for precision packaging a plurality of substrate plates, the gasket comprising: an elastically resilient body; an upright anchoring wall for fitting into the gasket-anchoring groove in the container lid; a short inward ledge portion; an outward ledge portion, longer than the inward ledge portion but thinner than the inward ledge portion by a predetermined difference between the outward ledge portion and the platelike section, the outward ledge portion extending along the platelike section of the container lid; a bent section of the outward ledge portion, bending midway along the outward ledge portion, toward the inner ledge of the container body when the gasket is installed therein; and a tip distally hooking from the bent section, the tip formed so as to seat in the arcuate channel in the inner ledge when the container lid is closed onto the container body, and to be longer than the depth of the channel so as to maintain a predetermined gap between the gasket and the inner ledge; wherein the gap, the resiliency of the gasket and the form of its bent section and of the tip for seating in the channel are predetermined so that, with the gasket installed in the container, in response to a difference in pressure between the interior and exterior of the container body when the container lid is closed over the container body, the tip slides out of the channel, whereby the seal is momentarily broken, the pressure difference equalizes, and the tip again seats into the channel. 5. A container as set forth in claim 4, wherein the difference (D) between the thickness of the inward ledge portion (6e) and the outward ledge portion (6b) is approximately 1 to 4 mm in practice.
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