Internally pulling type lift device for chair armrest

Details Internally pulling type lift device for chair armrest Internally pulling type lift device for chair armrest

2007-03-16

2008-11-11

Dunn, David (Department: 3636)

Chairs and seats

Armrest

Adjustable to multiple use positions relative to bottom or back

C297S411350

Reexamination Certificate

active

07448687

ABSTRACT:
An internally pulling type lift device for a chair armrest includes an outer pipe, a guide track, an inner pipe, a follower, a locking member, a pull handle, a control knob, and a spring. Thus, the inner pipe is movable in the outer pipe so that the inner pipe will not rub the outer wall of the outer pipe during a long-term utilization, thereby enhancing the aesthetic quality of the outer pipe. In addition, the inner pipe is locked onto or unlocked from the outer pipe by pulling or releasing the control knob, so that the lift device is operated easily and rapidly, thereby facilitating a user operating the lift device to adjust the height of the armrest.

REFERENCES:
patent: 5620233 (1997-04-01), Corwin
patent: 5647638 (1997-07-01), Ritt et al.
patent: 5931537 (1999-08-01), Gollin et al.
patent: 6139107 (2000-10-01), Lee
patent: 6209840 (2001-04-01), Chen
patent: 6336680 (2002-01-01), Lee
patent: 6343840 (2002-02-01), Chuang
patent: 6394553 (2002-05-01), McAllister et al.
patent: 6398309 (2002-06-01), Chen
patent: 6419323 (2002-07-01), Chu et al.
patent: 6460932 (2002-10-01), Kopish et al.
patent: 6761410 (2004-07-01), Lee
patent: 6974189 (2005-12-01), Machael et al.
patent: 6974190 (2005-12-01), Hung
patent: 6976739 (2005-12-01), Wang
patent: 7156466 (2007-01-01), Chang
patent: 7246859 (2007-07-01), Igarashi et al.
patent: 2002/0043863 (2002-04-01), Roslund et al.
patent: 2005/0093359 (2005-05-01), Hobb et al.
patent: 2007/0024100 (2007-02-01), Chan
patent: 2007/0057560 (2007-03-01), Fookes et al.
patent: 2007/0085402 (2007-04-01), Hu et al.
patent: 2007/0164595 (2007-07-01), Chi

Affiliated with

Also associated with

Rating

Internally pulling type lift device for chair armrest does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Internally pulling type lift device for chair armrest, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Internally pulling type lift device for chair armrest will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4037559