IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0564201
(2006-11-28)
|
등록번호 |
US-8683831
(2014-04-01)
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발명자
/ 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
Knobbe, Martens, Olson & Bear LLP
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인용정보 |
피인용 횟수 :
1 인용 특허 :
65 |
초록
▼
A locking cover plate can be selectively locked in position on a stortz pipe end fitting or can be unlocked and removed for access to the open pipe end. The cover plate includes a sliding plate that is driven laterally outward into a deployed state by rotating a drive bolt. The drive bolt is coupled
A locking cover plate can be selectively locked in position on a stortz pipe end fitting or can be unlocked and removed for access to the open pipe end. The cover plate includes a sliding plate that is driven laterally outward into a deployed state by rotating a drive bolt. The drive bolt is coupled to the sliding plate through a torque limiting coupling that transfers the rotation of the drive bolt to translating movement of the latch bar with a cam plate. Movement of the sliding plate is indicated through a front of the cover plate such that the user can identify whether the cover plate is locked on a fitting or simply placed on the fitting without the lock engaged.
대표청구항
▼
1. A protective cover plate for a stortz connection of a piping system, said cover plate comprising a front plate, a stortz fitting extending rearward from said front plate, and a sliding plate locking mechanism being disposed rearward of said front plate and being adapted to engage a concealed port
1. A protective cover plate for a stortz connection of a piping system, said cover plate comprising a front plate, a stortz fitting extending rearward from said front plate, and a sliding plate locking mechanism being disposed rearward of said front plate and being adapted to engage a concealed portion of said piping system when said cover plate is assembled to said piping system, the sliding plate locking mechanism comprising a sliding plate, said sliding plate moving in a first direction when driven by rotation of an input member in a first direction and said sliding plate moving in a second direction when driven by rotation of the input member in a second direction, wherein the sliding plate locking mechanism is configured to allow lost motion between rotation of the input member and movement of the sliding plate. 2. A method of installing a cover plate to a piping system having a stortz fitting, said method comprising inserting said cover plate into said stortz fitting, rotating said cover plate to secure said cover plate to said stortz fitting, turning a cam plate, translating a latch bar, indicating a movement of said latch bar, and loading an actuator assembly with a tamper-resistant torsion load after the latch bar is translated. 3. A method of removing a cover plate from a piping system having a stortz fitting, said method comprising unloading a tamper-resistant torsion load, rotating a cam plate after removing at least a portion of the tamper-resistant torsion load, translating a latch bar, indicating movement of said latch bar and removing said cover plate. 4. The method of claim 3, wherein said indicating movement operation is completed with completion of said translating said latch bar operation. 5. The method of claim 3, wherein said removing said cover plate comprises rotating said cover plate relative to said piping system and axially translating said cover plate relative to said piping system. 6. A locking cover plate for a fire department connection having a stortz-type fitting, the locking cover plate comprising a housing and a plug positioned within said housing, a latching mechanism being adapted to contact the fire department connection having a stortz-type fitting, the latching mechanism comprising a latch bar, the latch bar moving in a first direction when driven by rotation of an input member in a first direction and the latch bar moving in a second direction when driven by rotation of the input member in a second direction, said housing comprising an adapter ring, a back plate and a camlock cover, a protective enclosure being defined by said plug, said adapter ring, said back plate and said camlock cover, and a majority of said latching mechanism being positioned within said protective enclosure, said adapter ring comprising an inner wall that defines an aperture. 7. The locking cover plate of claim 6, wherein said adapter ring comprises a pair of opposing flanges. 8. The locking cover plate of claim 7, wherein said pair of opposing flanges defines a pair of outwardly extending catch hooks. 9. The locking cover plate of claim 7, wherein said adapter ring is formed of aluminum or brass. 10. The locking cover plate of claim 6, wherein said aperture of said adapter ring is a central aperture. 11. The locking cover plate of claim 6, wherein said inner wall extends only a portion of an overall thickness of the adapter ring. 12. The locking cover plate of claim 6, wherein said inner wall terminates at an inner face. 13. The locking cover plate of claim 12, wherein said plug is positioned generally within said protective enclosure and said plug seats against said inner face. 14. The locking cover plate of claim 13, wherein said plug comprises a slotted recess and the latch bar is capable of translating within said slotted recess in a generally radial direction.
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