Spectacle blinds swinging device

Patent metadata

Field	Value
Publication number	US-10544867-B2
Application number	US-201715797709-A
Country	US
Kind code	B2
Filing date	Oct 30, 2017
Priority date	Oct 30, 2017
Publication date	Jan 28, 2020
Grant date	Jan 28, 2020

Abstract

A swinging device for spectacle blinds where the swinging device includes a case having a pair of side members connected to a bottom member and first and second shafts rotatably connected to the case. A first gear mounted on the first shaft engages a second gear mounted on the second shaft. A drive handle assembly is connected to the first shaft to impart rotation of the first shaft. A spectacle blind holder is mounted on an end of the second shaft. The spectacle blind holder is arranged and designed to securely hold the spectacle blind. A base assembly has an upper portion connected to the case and a lower portion for mounting to piping.

First claim

We claim:

1. A portable, removable swinging device for a spectacle blind having two discs joined by a web, the swinging device comprising:
a case having a pair of side members connected to a bottom member;
a first shaft rotatably connected to the case;
a second shaft rotatably connected to the case;
at least one first gear mounted on the first shaft;
at least one second gear mounted on the second shaft,
wherein the at least one second gear engages the at least one first gear;
a drive handle assembly connected to the first shaft;
a spectacle blind holder mounted on an end of the second shaft, wherein the spectacle blind holder is arranged and designed to be releasably secured to the spectacle blind to allow removal of the swinging device independent of the spectacle blind; and
a base assembly having an upper portion connected to the case and a lower portion for mounting to a pipe.

2. The swinging device of claim 1 , further comprising a plurality of bearings for rotatably connecting the first shaft to the pair of side members and for rotatably connecting the second shaft to the pair of side members of the case.

3. The swinging device of claim 2 , wherein the lower portion of the base assembly comprises a bolted clamp for securing the swinging device to the pipe on one side of the spectacle blind.

4. The swinging device of claim 2 , wherein the drive handle assembly includes a U-shaped handle providing torque when rotated.

5. The swinging device of claim 2 , wherein the pair of side members comprises a front side member and a back side member, and the drive handle assembly is outside the case adjacent the back side member and the spectacle blind holder is outside the case adjacent the front side member.

6. The swinging device of claim 1 , wherein the lower portion of the base assembly comprises a bolted clamp for securing the swinging device to the pipe on one side of the spectacle blind.

7. The swinging device of claim 1 , wherein the drive handle assembly includes a U-shaped handle providing torque when rotated.

8. The swinging device of claim 1 , wherein the spectacle blind holder comprises:
a pair of plates, each plate having a hole near each end of the plates, one plate mounted to an end of the second shaft, and threaded fasteners inserted through the holes in the plates to secure the plates to one another,
wherein the spacing of the holes in the plates is greater than the width of the web such that the web can be positioned between the pair of plates and between the pair of holes of each plate and threaded fasteners inserted through the holes may be drawn tight to secure the spectacle blind between the pair of plates.

9. The swinging device of claim 1 , wherein
the at least one first gear mounted on the first shaft comprises two first gears mounted on the first shaft,
the at least one second gear mounted on the second shaft comprises two second gears mounted on the second shaft,
wherein the two second gears engage the two first gears.

10. The swinging device of claim 1 , wherein the pair of side members comprises a front side member and a back side member, and the drive handle assembly is outside the case adjacent the back side member and the spectacle blind holder is outside the case adjacent the front side member.

11. A swinging device for a spectacle blind having two discs joined by a web, the swinging device comprising:
a case;
a first shaft;
a second shaft;
a plurality of bearings for rotatably connecting the first and second shafts to the case;
a first gear mounted on the first shaft;
a second gear mounted on the second shaft,
wherein the second gear engages the first gear;
a handle connected to the first shaft;
a spectacle blind holder mounted on an end of the second shaft, wherein the spectacle blind holder comprises:
a pair of plates, each plate having a hole near each end of the plates, one plate mounted to an end of the second shaft, and threaded fasteners inserted through the holes in the plates to secure the plates to one another, and
wherein the spacing of the holes in the plates is greater than the width of the web such that the web can be positioned between the pair of plates and between the pair of holes of each plate and threaded fasteners inserted through the holes may be drawn tight to secure the spectacle blind between the pair of plates; and

a base assembly connected to the case and having a clamp for mounting to a pipe.

12. The swinging device of claim 11 , wherein the handle is a U-shaped handle providing torque when rotated.

13. The swinging device of claim 11 , wherein the case has a front side and a back side and the handle is outside the case adjacent the back side and the spectacle blind holder is outside the case adjacent the front side.

14. The swinging device of claim 11 , wherein the base assembly comprises a clamp for securing the swinging device on the pipe on one side of the spectacle blind.

15. A swinging device for a spectacle blind having two discs joined by a web, the two discs each having an outside diameter greater than a width of the web, the swinging device comprising:
a case having front and back side members connected to a bottom member;
a first shaft rotatably connected to the case;
a second shaft rotatably connected to the case;
a first gear mounted on the first shaft between the front and back side members;
a second gear mounted on the second shaft between the front and back side members, the second gear engaging the first gear;
a drive handle assembly connected to the first shaft, the drive handle assembly located adjacent the back side member oppositely of the front side member;
a spectacle blind holder mounted on an end of the second shaft, the spectacle blind holder located adjacent the front side member oppositely of the back side member; and
a base assembly having an upper portion connected to the case and a lower portion for releasably mounting on a pipe.

16. The swinging device of claim 15 , wherein the lower portion of the base assembly comprises a clamp for securing the swinging device on the pipe only to one side of the spectacle blind.

17. The swinging device of claim 15 , wherein the spectacle blind holder is arranged and designed to be releasably secured to the spectacle blind.

Assignees

• Saudi Arabian Oil Co

Inventors

• Alharbi Bandar Bjad
• Alharthi Fahad Abdallah

Classifications

• F16L55/105

  Closing devices introduced radially into the pipe or hose · CPC title

• F16K3/312 Primary

  Line blinds · CPC title

• F16K31/53

  with toothed gearing · CPC title

• E21B34/00

  Valve arrangements for boreholes or wells · CPC title

• F16L55/10

  Means for stopping flow in pipes or hoses (F16L29/00, F16L37/28 take precedence; valves F16K) · CPC title