US4703701A — Desk with height and angle adjustable table top

Claim 1

Independent Claim 278 words

A desk with height and angle adjustable table top comprising; a stand device adapted to be situated on a floor and having at least one sleeve member attached to the stand device to extend obliquely upwardly, at least one guide frame including an oblique member slidably situated in the sleeve member and having an upper portion, a horizontal member having a first end situated adjacent to the upper portion of the oblique member and a second end opposite the first end, and a supporting device pivotally connected to the oblique member and the horizontal member so that the horizontal member can be moved between a horizontal position and a tilted position relative to the floor, a table top substantially slidably situated on the horizontal member of the guide frame, at least one driving apparatus connected between the table top and the horizontal member of the guide frame, said driving apparatus having a switch so that when the switch is actuated, the driving apparatus pushes the horizontal member horizontally relative to the table top, at least one connecting device situated between the table top and the stand device so that when the driving apparatus is actuated, the guide frame is moved obliquely upwardly along the sleeve member and the table top is substantially vertically upwardly moved relative to the stand device while laterally sliding on the horizontal member of the guide frame as the guide frame moves obliquely, and a fastening device for locking the oblique member relative to the stand device, so that when the table top is pushed obliquely downwardly while the fastening device and the switch of the driving apparatus are actuated, the table top tilts.

Claim 2

Dependent Claim 278 words

A desk with height and angle adjustable table top comprising; a stand device adapted to be situated on a floor and having at least one sleeve member attached to the stand device to extend obliquely upwardly, at least one guide frame including an oblique member slidably situated in the sleeve member and having an upper portion, a horizontal member having a first end situated adjacent to the upper portion of the oblique member and a second end opposite the first end, and a supporting device pivotally connected to the oblique member and the horizontal member so that the horizontal member can be moved between a horizontal position and a tilted position relative to the floor, a table top substantially slidably situated on the horizontal member of the guide frame, at least one driving apparatus connected between the table top and the horizontal member of the guide frame, said driving apparatus having a switch so that when the switch is actuated, the driving apparatus pushes the horizontal member horizontally relative to the table top, at least one connecting device situated between the table top and the stand device so that when the driving apparatus is actuated, the guide frame is moved obliquely upwardly along the sleeve member and the table top is substantially vertically upwardly moved relative to the stand device while laterally sliding on the horizontal member of the guide frame as the guide frame moves obliquely, and a fastening device for locking the oblique member relative to the stand device, so that when the table top is pushed obliquely downwardly while the fastening device and the switch of the driving apparatus are actuated, the table top tilts.

Claim 3

Dependent Claim 42 words

A desk according to claim 1, in which said connecting device comprises an upper supporting projection provided beneath the table top, a lower supporting projection provided on the stand device, and a link pivotally connected to the upper and lower supporting projections.

Claim 4

Dependent Claim 49 words

A desk according to claim 2, in which said oblique member is provided with a projection at the upper portion thereof, said projection extending toward the horizontal member so that when the projection is pushed horizontally by the driving apparatus, the oblique member is urged to move obliquely upwardly.

Claim 5

Dependent Claim 63 words

A desk according to claim 3, in which said driving apparatus includes a body connected to the table top a rod slidably situated in the body, and connected to the horizontal member, and means for urging the rod away from the body situated in the body, said rod being urged toward the projection by the urging means only when the switch is actuated.

Claim 6

Dependent Claim 47 words

A desk according to claim 4, in which said guide frame further includes a plurality of rollers mounted on the oblique member and the horizontal member so that the oblique member and the horizontal member can smoothly slide relative to the sleeve member and the table top.

Claim 7

Dependent Claim 42 words

A desk according to claim 5, in which said stand device comprises two leg stand members having the sleeve members respectively, said guide frames being provided on the respective sleeves so that the table top is supported by the two guide frames.

Claim 8

Dependent Claim 20 words

A desk according to claim 6, in which said fastening device is a finger screw mounted on the sleeve member.

Claim 9

Dependent Claim 100 words

A desk according to claim 1, in which said fastening device comprises a plurality of cutouts formed on the oblique member, a clutch member situated on the stand device, said clutch member being urged toward the cutouts so that the clutch member engages the cutouts to prevent movement of the oblique member relative to the stand device, and an operating device mounted on the stand device and operationally connected to the clutch so that when the operating device is actuated, the clutch member is disengaged from the cutouts to allow the oblique member to move relative to the stand device.

Claim 10

Dependent Claim 25 words

A desk according to claim 8, in which said clutch member includes a projection at an end of the clutch member to engage the cutouts.

Claim 11

Dependent Claim 32 words

A desk according to claim 9, in which said fastening device further includes a spring attached to the clutch member to allow the projection of the clutch member to engage the cutouts.

Claim 12

Dependent Claim 60 words

A desk according to claim 10, in which said operating device comprises a pedal pivotally connected to the stand device, a link pivotally connected to the stand device and engaging the pedal, and a wire situated between the clutch member and the link so that when the pedal is actuated, the projection of the clutch member disengages from the cutouts.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1990-11-02	1991-05-04	1991-11-03	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1994-11-02	1995-05-04	1995-11-03	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1998-11-02	1999-05-04	1999-11-03	$7700.00	Window Closed / Lapsed

Desk with height and angle adjustable table top

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