A backup ring is provided adjacent a seal apparatus for delivering a controlled space between two relatively moving parts. The backup ring provides protection against seal extrusion and failure, and can provide an auxiliary seal when needed. The backup ring includes either an arcuate surface that de
A backup ring is provided adjacent a seal apparatus for delivering a controlled space between two relatively moving parts. The backup ring provides protection against seal extrusion and failure, and can provide an auxiliary seal when needed. The backup ring includes either an arcuate surface that deforms under pressure, or a cantilever portion that deforms under pressure, or both.
대표청구항▼
A backup ring is provided adjacent a seal apparatus for delivering a controlled space between two relatively moving parts. The backup ring provides protection against seal extrusion and failure, and can provide an auxiliary seal when needed. The backup ring includes either an arcuate surface that de
A backup ring is provided adjacent a seal apparatus for delivering a controlled space between two relatively moving parts. The backup ring provides protection against seal extrusion and failure, and can provide an auxiliary seal when needed. The backup ring includes either an arcuate surface that deforms under pressure, or a cantilever portion that deforms under pressure, or both. g hole along the axis of the rotary bar. 6. The rotary bar for the game table as claimed in claim 4, wherein the first transmission body is integrally formed with the inner bar and the second transmission body is integrally formed with the doll. 7. The rotary bar for the game table as claimed in claim 4, wherein one end of the first transmission body is connected with the inner bar, while the other end thereof is engaged with the transmission means, the second transmission body being connected with the doll. 8. The rotary bar for the game table as claimed in claim 2, wherein the transmission means is a gear set including several gears engaged with each other, a gear positioned at one end serving as the power input end, a gear positioned at the other end serving as the power output end, the two transmission bodies being two racks respectively meshing with the input end and output end. 9. The rotary bar for the game table as claimed in claim 8, wherein the rotational speed of the power output end is greater than the rotational speed of the power input end. 10. The rotary bar for the game table as claimed in claim 8, wherein the transmission means further includes a casing in which the gears are mounted, the casing being disposed in the outer bar. 11. The rotary bar for the game table as claimed in claim 10, wherein the outer bar is formed with at least one window, the transmission means being mounted in the outer bar through the window. 12. The rotary bar for the game table as claimed in claim 11, herein an outer wall of the casing is formed with a predetermined number of engaging sections for engaging with an inner wall of the outer bar. 13. The rotary bar for the game table as claimed in claim 10, wherein the at least one end of the casing is formed with a small frame, whereby the first transmission body extends through the small frame into the transmission means. 14. The rotary bar for the game table as claimed in claim 1, wherein the transmission means serves to convert the transmitted power, whereby the power of the power input end is unequal to the power of the power output end. 15. The rotary bar for the game table as claimed in claim 1, wherein when operating the inner bar to slide, the movement of the doll is larger than the movement of the inner bar. 16. The rotary bar for the game table as claimed in claim 1, wherein when the inner bar is slid within the outer bar, the inner bar is stoppable at a dead end. 17. The rotary bar for the game table as claimed in claim 16, wherein the circumference of the inner bar is formed with an axial slot, at least one stop section being disposed on the outer bar and extending into the slot. 18. The rotary bar for the game table as claimed in claim 16, wherein the circumference of the outer bar is formed with an axial slot, at least one stop section being disposed on the inner bar and extending into the slot. 19. The rotary bar for the game table as claimed in claim 1, wherein the inner and outer bars are polygonal bar bodies, the inner bar being nested in the outer bar. 20. The rotary bar for the game table as claimed in claim 1, wherein the inner and outer bars are circular tube bodies, the inner bar being nested in the outer bar, the wall faces of the inner and outer bars being formed with engaging sections engaged with each other, whereby the inner and outer bars can be synchronously rotated. 21. The rotary bar for the game table as claimed in claim 20, wherein the inner wall of the outer bar and the outer wall of the inner bar are formed with axial ribs which are engaged with each other. 22. The rotary bar for the game table as claimed in claim 1, further comprising at least one link connecting the doll. 23. The rotary bar for the game table as claimed in claim 1, further comprising a linking means slidably fitted around the outer bar, the linking means being rotatable along with the outer bar, the doll being fixedly connected with the linking means, the power output end of the tr
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이 특허에 인용된 특허 (9)
McGee John K. (Houston TX) Bridges Charles D. (Houston TX), Annulus sealing device with anti-extrusion rings.
Holt,Augustus Brooks; Roberts,Paul E.; Schofield,Alan P., Cammed seal assembly with sealing ring having an angled leg portion and foot portion with elastomeric energizer element.
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