IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0443487
(2003-05-22)
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발명자
/ 주소 |
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
17 인용 특허 :
16 |
초록
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The disclosure describes a non-swiveling pneumatic lectern with a base, a hollow column secured to the plate, a sleeve secured to the interior of the column, an adjustable tube having an upper end and a bottom end wherein the first end slides inside the sleeve secured to the column, a pneumatic cyli
The disclosure describes a non-swiveling pneumatic lectern with a base, a hollow column secured to the plate, a sleeve secured to the interior of the column, an adjustable tube having an upper end and a bottom end wherein the first end slides inside the sleeve secured to the column, a pneumatic cylinder disposed within the column for vertically moving the support, an actuation device for engaging and disengaging the pneumatic cylinder, a locking knob for locking the tube at a designated height by pressing the sleeve against the tube, and a top lectern section with a pivotable shelf.
대표청구항
▼
1. A non-swiveling pneumatic lectern comprising:a. a base; b. a base plate secured to the base; c. a hollow column secured to the base plate; d. a sleeve secured to the interior of the column; e. an adjustable tube with an upper end and a lower end wherein the lower end slides inside the sleeve secu
1. A non-swiveling pneumatic lectern comprising:a. a base; b. a base plate secured to the base; c. a hollow column secured to the base plate; d. a sleeve secured to the interior of the column; e. an adjustable tube with an upper end and a lower end wherein the lower end slides inside the sleeve secured to the hollow column; f. a pneumatic cylinder disposed within the hollow column for vertically moving a support; g. an actuation device for engaging and disengaging the pneumatic cylinder; h. a locking knob for locking the adjustable tube at a designated height by pressing the sleeve against the adjustable tube; i. a front panel secured to the support; j. a right side panel secured to the front panel and the support; k. a left side panel secured to the front panel and the support; l. a pivotable shelf comprising: i. a shelf top; ii. a shelf bottom; iii. a shelf front; iv. a shelf back; and v. wherein the shelf front is connected to the front panel and the pivotable shelf fits within the right side panel and left side panel. 2. The lectern of claim 1, further comprising:a. a first base support secured to the base on the end opposite the support; b. a second base support secured to the base on the end opposite the support and that is disposed parallel to the first base support. 3. The lectern of claim 2, wherein the first and second base supports are on a plurality of casters.4. The lectern of claim 3, wherein the plurality of casters further comprise at least two locks.5. The lectern of claim 1, wherein the overall height of the lectern in the collapsed position is 41 inches.6. The lectern of claim 1, wherein the overall height of the lectern in the extended position 15 is 51 inches.7. The lectern of claim 1, wherein the pneumatic cylinder provides between 50 psi and 75 psi.8. The lectern of claim 1, wherein the width of the lectern ranges between 18 inches 30 inches.9. The lectern of claim 1, wherein the overall weight of the lectern does not exceed 50 pounds.10. The lectern of claim 1, wherein all components other than the pneumatic cylinder, are plastic.11. The lectern of claim 1, wherein the hollow column comprises a shape selected from the group consisting of a square, a rectangle, and a cylinder.12. The lectern of claim 1, wherein the sleeve consists of a material selected from the group consisting of a plastic, a coated metal, and a fabric.13. The lectern of claim 1, further comprising a first rubber bumper secured to the right panel and a second rubber bumper secured to the left panel.14. The lectern of claim 1, further comprising a support plate and a support, wherein the support plate is attached to the support for receiving the upper end of the adjustable tube.15. The lectern of claim 1, wherein the right side panel further comprises a first pin hole.16. The lectern of claim 1, wherein the left side panel further comprises a second pin hole.17. The lectern of claim 1, wherein the shelf front is connected to the front panel with a first spring loaded pin and a second spring loaded pin.18. The lectern of claim 1, further comprising a first pin is secured in the first pin hole and a second pin is secured in the second pin hole.19. The lectern of claim 1, further comprising a stop secured to the shelf back.20. A non-swiveling pneumatic speaker stand comprising:a. a base; b. a base plate secured to the base; c. a hollow column secured to the base plate; d. a sleeve secured to the interior of the column; e. an adjustable tube with an upper end and a lower end wherein the lower end slides inside the sleeve secured to the hollow column; f. a support plate attached to a support for receiving the upper end of the adjustable tube, wherein a support comprises i. a support top; ii. a support bottom; iii. a support front; iv. a support back, and v. wherein the support is fixed on a wedge that has an angle from the plate; g. a pneumatic cylinder disposed within the hollow column for vertically moving the support; h. an actuation device for engaging and disengaging the pneumatic cylinder; and i. a locking knob for locking the adjustable tube at a designated height by pressing the sleeve against the adjustable tube. 21. The speaker stand of claim 20, further comprising:a. a first base support secured to the base on the end opposite the support; and b. a second base support secured to the base on the end opposite the support and that is disposed paralled to the first base support. 22. The speaker stand of claim 21, wherein the first base support and the second base support are on a plurality of casters.23. The speaker stand of claim 22, wherein the plurality of casters further comprise at least two locks.24. The speaker stand of claim 20, wherein the overall height of the lectern in the collapsed position is 41 inches.25. The speaker stand of claim 20, wherein the overall height of the lectern in the extended position is 51 inches.26. The speaker stand of claim 20, wherein the pneumatic cylinder provides between 50 psi and 75 psi.27. The speaker stand of claim 20, wherein the width of the lectern ranges between 18 inches and 30 inches.28. The speaker stand of claim 20, wherein the overall weight of the lectern does not exceed 50 pounds.29. The speaker stand of claim 20, wherein all components other than the pneumatic cylinder are plastic.30. The speaker stand of claim 20, wherein the hollow column comprises a shape selected from the group consisting of a square, a rectangle, and a cylinder.31. The speaker stand of claim 20, wherein the sleeve consists of a material selected from the group consisting of a plastic, a coated metal, and a fabric.32. The speaker stand of claim 20, further comprising a first rubber bumper secured to the right panel and a second rubber bumper secured to the left panel.33. The speaker stand of claim 20, further comprising a stop secured to the support back.34. A non-swiveling pneumatic lectern comprising:a. a base; b. a hollow column and adjustable tube coaxially aligned about an axis and operatively connected in telescopic relation, one of said column and said tube connected to the base; c. a sleeve connected to the interior of the column; d. a pneumatic cylinder disposed within the hollow column that supports a lectern at a designated height in relation to said base; e. an actuation device that engages and disengages the pneumatic cylinder; f. a lock that locks the adjustable tube at the designated height in relation to the sleeve in the hollow column; wherein said hollow column and said adjustable tube are not rotatable in relation to each other around said axis.35. A non-swiveling pneumatic speaker stand comprising:a. a base; b. a hollow column and adjustable tube coaxially aligned about an axis and operatively connected in telescopic relation, one of said column and said tube connected to the base; c. a sleeve connected to the interior of the column; d. a support plate in which a wedge angles said support plate; e. a pneumatic cylinder disposed within the hollow column that supports a speaker stand at a designated height in relation to said base; f. an actuation device that engages and disengages the pneumatic cylinder; g. a lock that locks the adjustable tube at the designated height in relation to the sleeve in the hollow column; wherein said hollow column and said adjustable tube are not rotatable in relation to each other around said axis.
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