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Patent No. 5571247

Self Containing Enclosure for Protection from Killer Bees

A self contained protective enclosure with an opening for entry and egress and a screen for ventilation and viewing.

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Class 297/303.2 - Fluid spring


Subclass of Class 297 - Chairs and seats
Definition: Opposed back and bottom movement wherein the resilient member,
No. of patents: 5
Last issue date: 09/12/2000


NumberTitleIssue Date
6116686Armchair
An armchair is disclosed. The armchair has a seatback, a pair of armrests securely mounted on both sides of the seatback, a spring-like base securely and respectively engaged with the pair of armrests and a seat a side of which engages with a bottom side ...
09/12/2000
6053574Device for adjusting the tilting resistance of a chair seat
For automatically adjusting the tilting resistance of a chair seat (6), which is tiltably attached on a base column (1) via a horizontal shaft provided across the chair, and where tilting resistance and springing are determined by two spring elements (13,...
04/25/2000
5577802Adjustable chair
A chair comprises a base with a fixed stem extending vertically from the base and a track member mounted to the top of the stem. The track member is a segment of a circle, the center of which is forward of the chair and coincident with either the knee or ...
11/26/1996
5348371Mechanical device for use particularly for the synchronous movement of the seat and backrest of a chair
A mechanical device connectable to the upper end of a central column extending from a chair base for the synchronous movement and locking of the seat and backrest of a chair. The device includes a first bracket connected to the column. A second bracket fo...
09/20/1994
4830432Positioning device
A positioning device is used for the positioning of a chair seat as to its inclination, or for positioning a back-rest member of a chair. The positioning device is constructed such as usual hydropneumatic springs which can be locked by closing a passage c...
05/16/1989
 
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