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8038330 |
Movable multi-directional light stand
A movable multi-directional light stand is revealed. The movable multi-directional light stand includes a retractable top support rod that can be received into and connected with a hollow middle...
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7658359 |
Load compensator for height adjustable table
A force adjustment assembly for use within a telescoping subassembly that includes a first elongated member and a second elongated member that is supported by the first elongated member for sliding...
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6612534 |
Stand assembly having anti-rotation feature
A microphone stand assembly includes an automatically operated anti-rotation arrangement for preventing inadvertent disengagement of the shaft from the base.
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6502791 |
Light duty adjustable pipe support assembly
An improved light duty easily adjustable pipe support assembly having a flat base, cushion pad, and free turning adjustment rods. Each adjustment rod has an adjustment knob with friction locking...
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6283420 |
Fine position adjustment for optical receiver or other sensor
An adjustable support for a sensor has a first support defining a first end and a second end. A first clamp is fixedly coupled to the first support between the first and second and thereof. The...
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6131870 |
Height adjusting apparatus with intermeshing bevel gears
A height adjusting apparatus includes a vertical outer tube that is adapted to be fixed on the base, and a vertical inner tube that is adapted to be fixed on the working table and that is mounted...
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5944272 |
Bobbin core holder for a bobbin creel
A bobbin core holder for a bobbin creel. The bobbin core holder includes a sleeve body securable on a creel rod, on which sleeve body a ring socket is fitted so as to be rotatable into at least one...
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5857657 |
Stand for medical instruments
In a stand for medical instruments according to the present invention, a first coefficient of friction adapted between an outer circumferential surface of a sliding column and an inner...
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5738326 |
Seat stem positioning structure of a chair for drummer
A seat stem positioning structure for a chair for drummer, including an internally threaded seat stem connector shaped like a stepped tube and fastened to a tubular central shaft and equipped with...
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5615855 |
Telescoping mast with integral payload
In an integrated telescoping mast-payload assembly, the payload forms the top telescoping section.
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5497966 |
Column unit, in particular a chair column unit
A column unit, in particular a chair column unit, including a base tube (310) and a pneumatic spring (318), further comprises an axially movable guide bushing (314) which is inserted in an axially...
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5088421 |
Adjustable height desk
An adjustable height desk including an open-front base and an outer skirting disposed over and around the base. Corner support brackets secured to the skirting below the work surface support...
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5031869 |
Control assembly for chair height adjustment
A displacement control assembly includes a rotatable lead screw longitudinally extending within a tubular column supporting the assembly. A nut is threaded to the screw for relative axial...
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4750701 |
Chair height adjustment mechanism
A control assembly for adjustable displacement of a chair seat or the like comprises a lead screw threaded to a nut for relative longitudinal movement in order to adjust the height of the chair...
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4728072 |
Height adjustment apparatus
A mechanical height adjustment apparatus having a tubular telescopic body portion powered by a spring-loaded nut on a tubular threaded shaft and in which the same spring means acts to close a...
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4627602 |
Mechanical lifting device
A mechanical lifting device, preferably for a chair seat, comprising two reciprocally telescoping parts, one of which is attached to a chair support, whereas the other part is attached to the chair...
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4601454 |
Telescopic supporting post
A telescopic supporting post (10) comprises two mutually displaceable telescope members (11, 12), each comprising an inner tubular portion (15, 17) of small diameter and an outer tubular portion...
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4493469 |
Height adjustment control arrangement
A height adjustment control arrangement for adjusting the height of a chair seat relative to a chair base in an office chair, includes a lower mounting assembly, an upper mounting assembly...
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4285488 |
Height adjusting mechanism for a swivel chair
A swivel chair having a main screw connected to the chair seat and rotatably supported in a mounting assembly on the chair base enabling rotation of the seat relative to the base without varying...
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4257582 |
Support column of adjustable length
A pneumatic spring of the piston-and-cylinder type constitutes a support column whose length may be adjusted when a valve connects the two cylinder compartments on opposite sides of the piston. The...
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4087070 |
Swivel chair with non-keywayed main screw
A swivel chair having a non-keywayed main screw rotatably connecting the chair seat and a supporting base to enable rotational movement of the seat with respect to the base. The top portion of the...
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4087071 |
Chair height limit stop
Limit stop means for limiting vertical height adjustment of a swivel chair support comprising a spindle, a fixture on one end of the spindle for connection to a chair seat, the upper end of the...
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3870270 |
FULLY ENCLOSED, ADJUSTABLE, SUPPORT COLUMN FOR A PIVOTAL CHAIR
A support column for a pivotal chair. The support column may be fully enclosed and yet permit selective adjustability in the height of the seat section above a base portion merely by rotation of...
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3799485 |
HEIGHT ADJUSTING MECHANISM
The height-adjusting mechanism includes a threaded spindle rotatably mounted in a chair base, a nut threaded on the spindle and a seat-supporting column telescopically mounted in the base and...
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3799486 |
HEIGHT ADJUSTING MECHANISM
The height adjusting mechanism includes a threaded spindle rotatably mounted in a chair base and a seat supporting column telescopically mounted in the base and operably threadably mounted on the...
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3778014 |
CHAIR BASE SWIVEL ARRANGEMENT
A chair base swivel arrangement comprising a tubular member supported in upright position from a chair base and carrying at its upper end an axially split O-shaped bearing element of antifriction...
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3727871 |
SEAT-HEIGHT ADJUSTMENT DEVICE
A seat-height adjustment device for a swivel chair including a clutch and upper and lower telescoping tubes. The tubes receive and cover the threaded spindle, hollow post, and bell nut of the...
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3707930 |
POWER OPERATED PEDESTAL TABLE AND SAFETY CLUTCH THEREFOR
A power-operated pedestal table having an extendable column for selectively varying the elevation of the table top. The column includes a pair of telescoping sections which are expanded and...
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3642244 |
HEIGHT ADJUSTMENT MECHANISM FOR SWIVEL CHAIRS
A support portion includes a sleeve having slots formed therethrough for gaining access to the interior of the sleeve. A threaded screw portion has the upper end thereof interconnected with a seat...
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3592434 |
PROJECTION SCREEN APPARATUS
This invention is a projection screen apparatus basically comprising a telescoping adjustable mast, and a bracket arrangement for adjustably securing the screen to the mast. Vertical adjustment of...
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3606234 |
RELEASABLE SWIVEL CHAIR SUPPORT CONSTRUCTION
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3386697 |
Rotatable chair height-adjustment mechanism
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3227113 |
Locking mechanism
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3100624 |
Adjustable pedestal for elevated sectional floors
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3086744 |
Floating locking device for chairs
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3084911 |
Anti-vibration lock for pedestal heads
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2987110 |
Adjustment locking device for chair base
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2937690 |
Vehicle saddle clamps
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2812799 |
Height adjusting support for swivel chairs
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