Hinge assembly to pivotably mount blind flange to pipe weld neck flange
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
E05D-005/06
E05D-003/02
F16J-013/20
F16L-055/10
E05D-005/02
E05D-011/02
출원번호
US-0456387
(2017-03-10)
등록번호
US-10180022
(2019-01-15)
발명자
/ 주소
Garg, Ram
Shrestha, Prabin K.
출원인 / 주소
Garg, Ram
대리인 / 주소
Plager Schack LLP
인용정보
피인용 횟수 :
0인용 특허 :
24
초록▼
A hinge assembly to pivotably mount a blind flange to a weld neck flange includes a front assembly having a front plate and a plurality of front link plates coupled to the front plate, the front plate having a plurality of openings, each opening in the front plate coupled to mechanical fasteners to
A hinge assembly to pivotably mount a blind flange to a weld neck flange includes a front assembly having a front plate and a plurality of front link plates coupled to the front plate, the front plate having a plurality of openings, each opening in the front plate coupled to mechanical fasteners to secure the front plate to the blind flange, a rear assembly pivotably mounted to the front assembly and having a rear plate and a plurality of rear link plates coupled to the rear plate, the rear plate having a plurality of openings, each opening in the rear plate coupled to mechanical fasteners to secure the rear plate to the weld neck flange, each front link plate disposed between a pair of adjacent rear link plates, and a pin disposed through each front link plate and the pair of adjacent rear link plates.
대표청구항▼
1. A hinge assembly for use with both blind flanges and weld neck flanges having tolerances on thickness, the hinge assembly pivotably connecting a blind flange to a weld neck flange coupled to an opening of a pipe, the hinge assembly comprising: a front assembly comprising a front plate, a first su
1. A hinge assembly for use with both blind flanges and weld neck flanges having tolerances on thickness, the hinge assembly pivotably connecting a blind flange to a weld neck flange coupled to an opening of a pipe, the hinge assembly comprising: a front assembly comprising a front plate, a first support plate directly coupled to a side edge of the front plate, and a plurality of front link plates directly coupled to the first support plate, the front plate extending in a first plane and the first support plate extending within a second plane, the first plane being oriented generally perpendicular to the second plane, the front plate comprising a plurality of openings, each opening in the plurality of openings in the front plate coupled to a first set of mechanical fasteners to secure the front plate to the blind flange;a rear assembly pivotably mounted to the front assembly, the rear assembly comprising a rear plate, a second support plate directly coupled to a side edge of the rear plate, and a plurality of rear link plates directly coupled to the second support plate, the rear plate extending in a third plane and the second support plate extending within a fourth plane, the third plane oriented generally perpendicular to the fourth plane, the rear plate comprising a plurality of openings, each opening in the plurality of openings in the rear plate coupled to a second set of mechanical fasteners to secure the rear plate to the weld neck flange, each front link plate in the plurality of front link plates being disposed between a pair of adjacent rear link plates in the plurality of rear link plates; anda pin disposed through each front link plate and the pair of adjacent rear link plates, the pin configured to permit pivotal movement of the front assembly relative to the rear assembly to enable the blind flange to open and close relative to the weld neck flange;wherein the front assembly is configured to pivotably adjust relative to the rear assembly to a closed position with the first and third planes parallel to each other and the second and fourth planes coplanar relative to each other, wherein the front assembly is configured to pivotably adjust relative to the rear assembly to an open position with the first and third planes coplanar relative to each other and the second and fourth planes parallel to each other. 2. The hinge assembly of claim 1, wherein the front plate is configured to pivot up to 180 degrees relative to the rear plate. 3. The hinge assembly of claim 2, wherein the first set of fasteners comprises a first tapered sleeve and a first stud, the first tapered sleeve disposed within one opening in a plurality of openings in the blind flange, the first stud comprising a tapered portion disposed within the first tapered sleeve and a threaded portion extending through one of the plurality of openings in the front plate, wherein the second set of fasteners comprises a second tapered sleeve and a second stud, the second tapered sleeve disposed within one opening in a plurality of openings in the weld neck flange, the second stud comprising a tapered portion disposed within the second tapered sleeve and a threaded portion extending through one of the plurality of openings in the rear plate. 4. The hinge assembly of claim 3, wherein each tapered sleeve of the first and second tapered sleeves comprises a slot extending along a longitudinal axis of the tapered sleeve, the slots configured to permit expansion of the first and second tapered sleeves. 5. The hinge assembly of claim 4, wherein the first set of fasteners comprises a first shim washer, a first sleeve, a first washer and a first nut, the first shim washer disposed around the threaded portion of the first stud and positioned between the first tapered sleeve and the front plate, the first sleeve, the first washer and the first nut being coupled to the threaded portion of the first stud, wherein the second set of fasteners comprises a second shim washer, a second sleeve, a second washer and a second nut, the second shim washer disposed around the threaded portion of the second stud and positioned between the second tapered sleeve and the rear plate, the second sleeve, the second washer and the second nut being coupled to the threaded portion of the second stud. 6. The hinge assembly of claim 5, further comprising a first lifting lug coupled to the front plate and a second lifting lug coupled to one of the plurality of rear link plates. 7. The hinge assembly of claim 6, wherein each pin comprises a threaded portion and an oil groove portion. 8. A hinge assembly for use with both blind flanges and weld neck flanges having tolerances on thickness, the hinge assembly pivotably connecting a blind flange to a weld neck flange coupled to an opening of a pipe, the hinge assembly comprising: a front assembly comprising a front plate, a first support plate directly coupled to a side edge of the front plate, and a plurality of front link plates directly coupled to the first support plate, the front plate extending in a first plane and the first support plate extending within a second plane, the first plane being oriented generally perpendicular to the second plane, the front plate comprising a plurality of openings, each opening in the plurality of openings in the front plate coupled to a first set of mechanical fasteners to secure the front plate to the blind flange;a rear assembly pivotably mounted to the front assembly, the rear assembly comprising a rear plate, a second support plate directly coupled to a side edge of the rear plate, and a plurality of rear link plates directly coupled to the second support plate, the rear plate extending in a third plane and the second support plate extending within a fourth plane, the third plane oriented generally perpendicular to the fourth plane, the rear plate comprising a plurality of openings, each opening in the plurality of openings in the rear plate coupled to a second set of mechanical fasteners to secure the rear plate to the weld neck flange, each front link plate in the plurality of front link plates being disposed between a pair of adjacent rear link plates in the plurality of rear link plates;a first handle coupled to the front plate;a second handle coupled to the rear plate; anda pin disposed through each front link plate and the pair of adjacent rear link plates, the pin configured to permit pivotal movement of the front assembly relative to the rear assembly to enable the blind flange to open and close relative to the weld neck flange;wherein the front assembly is configured to pivotably adjust relative to the rear assembly to a closed position with the first and third planes parallel to each other and the second and fourth planes coplanar relative to each other, wherein the front assembly is configured to pivotably adjust relative to the rear assembly to an open position with the first and third planes coplanar relative to each other and the second and fourth planes parallel to each other. 9. The hinge assembly of claim 8, wherein the first set of fasteners comprises a first tapered sleeve and a first stud, the first tapered sleeve disposed within one opening in a plurality of openings in the blind flange, the first stud comprising a tapered portion disposed within the first tapered sleeve and a threaded portion extending through one of the plurality of openings in the front plate, wherein the second set of fasteners comprises a second tapered sleeve and a second stud, the second tapered sleeve disposed within one opening in a plurality of openings in the weld neck flange, the second stud comprising a tapered portion disposed within the second tapered sleeve and a threaded portion extending through one of the plurality of openings in the rear plate. 10. The hinge assembly of claim 9, wherein the first set of fasteners comprises a first shim washer, a first washer and a first nut, the first shim washer disposed around the threaded portion of the first stud and positioned between the first tapered sleeve and the front plate, the first washer and the first nut being coupled to the threaded portion of the first stud, wherein the second set of fasteners comprises a second shim washer, a second washer and a second nut, the second shim washer disposed around the threaded portion of the second stud and positioned between the second tapered sleeve and the rear plate, the second washer and the second nut being coupled to the threaded portion of the second stud.
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