Display system having a magnetic drive assembly and...

Card – picture – or sign exhibiting – Changing exhibitor – Rotatable carrier for display item

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C340S815620, C211S001560, C211S163000, C040S006000, C040S473000, C040S493000, C040S501000, C040S503000

Reexamination Certificate

active

07428791

ABSTRACT:
A display system may include a frame, column connection members connected to the frame, and column members rotatably connected to the column connection members. The display system may also include a magnetic drive assembly carried by the frame that engages the column connection members to selectively rotate the column members. The magnetic drive assembly may include a power source, energizing members connected to the power source, and column movement members connected to the column connection members. The energizing members may include an electromagnet, and the column movement members may be positioned spaced-apart from and overlying the energizing members. The electromagnet of the energizing members may be selectively energized to form a magnetic field between the energizing members and the column movement members to selectively cause rotation of the column members.

REFERENCES:
patent: 1112921 (1914-10-01), Pearl
patent: 1195369 (1916-08-01), Pearl
patent: 1362542 (1920-12-01), Rogers
patent: 1650059 (1927-11-01), Bartolomucci
patent: 1650205 (1927-11-01), Gower et al.
patent: 1652335 (1927-12-01), Wiley
patent: 1785204 (1930-12-01), Nelson et al.
patent: 3482344 (1969-12-01), Holloman
patent: 3755936 (1973-09-01), Terre et al.
patent: 3921321 (1975-11-01), Weisskopf
patent: 4521983 (1985-06-01), Wakatake
patent: 4577427 (1986-03-01), Browne
patent: 4759140 (1988-07-01), Roberts et al.
patent: 5572816 (1996-11-01), Anderson, Jr. et al.
www.e-TORQ.com—Aug. 12, 2005.
e-TORQ Brochure from e-Torq.com website—Aug. 12, 2005.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Display system having a magnetic drive assembly and... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Display system having a magnetic drive assembly and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Display system having a magnetic drive assembly and... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3977335

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.