IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0881469
(2001-06-14)
|
발명자
/ 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
McCormick, Paulding & Huber LLP
|
인용정보 |
피인용 횟수 :
5 인용 특허 :
9 |
초록
▼
A pressure relief valve includes a center hub portion which extends through an aperture formed in a wall of a container. The pressure relief valve further includes a knob having an underside from which the center hub portion extends, a static cavity formed in the underside and a pressure release cav
A pressure relief valve includes a center hub portion which extends through an aperture formed in a wall of a container. The pressure relief valve further includes a knob having an underside from which the center hub portion extends, a static cavity formed in the underside and a pressure release cavity also formed the underside. A sealing member is fixed to the underside, and encompasses the center hub portion and the static cavity.
대표청구항
▼
A pressure relief valve includes a center hub portion which extends through an aperture formed in a wall of a container. The pressure relief valve further includes a knob having an underside from which the center hub portion extends, a static cavity formed in the underside and a pressure release cav
A pressure relief valve includes a center hub portion which extends through an aperture formed in a wall of a container. The pressure relief valve further includes a knob having an underside from which the center hub portion extends, a static cavity formed in the underside and a pressure release cavity also formed the underside. A sealing member is fixed to the underside, and encompasses the center hub portion and the static cavity. uter race of the bearing, wherein the inner surface of the bearing retainer is eccentric relative to the outer surface portion of the bearing retainer, such that rotation of the bearing retainer relative to the frame moves the bearing and thereby the rotational axis of the wheel relative to the frame so that the position of the rotational axis of the wheel is adjustable relative to the frame in an infinite number of positions, and such that the bearing retainer is fixable relative to the frame so as to fix the rotational axis of the wheel relative to the frame; a locking ring that engages the bearing retainer, the locking ring being releasably fixed to the frame, such that fixing the locking ring to the frame causes the locking ring to clamp the engagement surface of the bearing retainer against the frame outer surface, thereby substantially preventing rotation of the bearing retainer relative to the frame; a hoist supported by the frame; and a load engaging mechanism which is raised and lowered by the hoist. 2. An overhead crane as set forth in claim 1, wherein the frame opening is defined by a generally cylindrical frame inner surface, and the generally cylindrical outer surface portion of the outer surface of the bearing retainer directly engages the frame inner surface. 3. An overhead crane as set forth in claim 1, wherein the bearing retainer includes a closed end that includes an outer face having a surface which is engageable with a tool for rotating the bearing retainer in the frame opening and relative to the frame. 4. An overhead crane as set forth in claim 3, wherein the engagement surface of the outer face is a hex head that is permanently fixed thereto. 5. An overhead crane as set forth in claim 1, wherein the engagement surface of the outer surface of the bearing retainer is an annular shoulder. 6. An overhead crane as set forth in claim 1, wherein the locking ring overlaps a peripheral portion of an outer face of the outer surface of the bearing retainer. 7. An overhead crane as set forth in claim 1, wherein the locking ring is releasably fixed to the frame by a plurality of threaded fasteners which extend through the locking ring and into the frame. 8. An overhead crane as set forth in claim 1, wherein the locking ring is disposed axially outboard of the frame outer surface. 9. An overhead crane adapted to be supported on a pair of spaced apart, generally parallel rails, said crane comprising: a frame which includes a generally cylindrical frame opening; a wheel adapted to roll along one of the rails; a bearing assembly supporting the wheel for rotation relative to the frame, the bearing assembly including a bearing supporting the wheel for rotation about an axis having a position relative to the frame; and a generally cylindrical bearing retainer which is housed in the frame opening and which houses the bearing, the bearing retainer having a generally cylindrical outer surface portion that is directly engaged by the frame opening, the bearing retainer also having a closed end that includes an outer face having a surface which is engageable with a tool for rotating the bearing retainer relative to the frame, such that rotation of the bearing retainer relative to the frame moves the bearing and thereby the rotational axis of the wheel relative to the frame so that the position of the rotational axis of the wheel is adjustable relative to the frame in an infinite number of positions, and such that the bearing retainer is fixable relative to the frame so as to fix the rotational axis of the wheel relative to the frame; a locking ring that engages the bearing retainer, the locking ring being releasably fixed to the frame, such that fixing the locking ring to the frame causes the locking ring to clamp the bearing retainer against the frame, thereby substantially preventing rotation of the bearing retainer relative to the frame: a hoist supported by the frame; and a load engaging mechanism which is raised and lowered by the hoist. 10. An overhead crane as set forth in claim 9, wherein the engagement surface of the outer face is a hex head that is permanently fixed thereto. 11. An overhead crane as set forth in claim 9, wherein the frame includes a frame outer surface having therein the frame opening, the outer surface of the bearing retainer also includes an engagement surface facing the frame outer surface, and the engagement surface of the bearing retainer is clamped against the frame outer surface when the locking ring is fixed, to the frame. 12. An overhead crane as set forth in claim 11, wherein the engagement surface of the outer surface of the bearing retainer is an annular shoulder. 13. An overhead crane as set forth in claim 11, wherein the locking ring overlaps a peripheral portion of an outer face of the outer surface of the bearing retainer. 14. An overhead crane as set forth in claim 11, wherein the locking ring is releasably fixed to the frame by a plurality of threaded fasteners which extend through the locking ring and into the frame. 15. An overhead crane as set forth in claim 9, wherein the engagement surface of the outer face is a hex head that is fixed thereto, and wherein the generally cylindrical outer surface portion is concentric with the hex head. 16. An overhead crane adapted to be supported on a pair of spaced apart, generally parallel rails, said crane comprising: a frame which includes a frame outer surface having therein a generally cylindrical frame opening; a wheel adapted to roll along one of the rails; a bearing assembly supporting the wheel for rotation relative to the frame, the bearing assembly including a bearing supporting the wheel for rotation about an axis having a position relative to the frame; a generally cylindrical bearing retainer which is housed in the frame opening and which houses the bearing, the bearing retainer having an outer surface including a generally cylindrical outer surface portion that is received by and that directly engages the frame opening, the outer surface of the bearing retainer also including an engagement surface facing the frame outer surface, the bearing retainer being rotatable relative to the frame such that rotation of the bearing retainer relative to the frame moves the bearing and thereby the rotational axis of the wheel relative to the frame so that the position of the rotational axis of the wheel is adjustable relative to the frame in an infinite number of positions; and a locking ring that engages the bearing retainer, the locking ring being releasably fixed to the frame, such that fixing the locking ring to the frame causes the locking ring to clamp the engagement surface of the bearing retainer against the frame outer surface, thereby substantially preventing rotation of the bearing retainer relative to the frame so as to fix the rotational axis of the wheel relative to the frame; a hoist supported by the frame; and a load engaging mechanism which is raised and lowered by the hoist. 17. An overhead crane as set forth in claim 16, wherein the engagement surface of the outer surface of the bearing retainer is an annular shoulder. 18. An overhead crane as set forth in claim 16, wherein the locking ring overlaps a peripheral portion of an outer face of the outer surface of the bearing retainer. 19. An overhead crane as set forth in claim 15, wherein the locking ring is releasably fixed to the frame by a plurality of threaded fasteners which extend through the locking ring and into the frame. 20. An overhead crane adapted to be supported on a pair of spaced apart, generally parallel rails, said crane comprising: a frame which includes a frame outer surface having therein a generally cylindrical frame opening defined by a generally cylindrical frame inner surface; a wheel adapted to roll along one of the rails; a bearing assembly supporting the wheel for rotation relative to the frame, the bearing assembly including a bea
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