Machine element or mechanism – Mechanical movements – Reciprocating or oscillating to or from alternating rotary
Reexamination Certificate
2011-04-19
2011-04-19
Mullins, Burton (Department: 2834)
Machine element or mechanism
Mechanical movements
Reciprocating or oscillating to or from alternating rotary
C074S089230, C074S089350, C005S616000
Reexamination Certificate
active
07926371
ABSTRACT:
A linear actuator for a piece of furniture, namely a bed or chair comprising a housing (8) of plastic consisting of two parts (8a, 8b) with a joining edge (8c) in the longitudinal direction of the housing. In both ends of the housing there is a transverse through aperture (10) for receiving a pivot shaft in the piece of furniture, and with an openable cover (9) for mounting the actuator on the shafts. In connection with the apertures there is a drive comprising a reversible motor, which over a transmission drives a spindle, and where a spindle nut fixed against rotation and constructed as a sliding element is mounted on said spindle. The pivot shaft in the piece of furniture has an arm which rests loosely against the end of the spindle nut when the actuator is mounted on the piece of furniture so that the pivot shaft is rotated for raising of a section in the piece of furniture in one direction of movement of the spindle and for lowering the section under its weight in the other direction. The two parts of the housing (11a,11b) are join together by gluing or welding, which simplifies the mounting and shape of the housing compared to the traditional assembly with screws.
REFERENCES:
patent: 5075911 (1991-12-01), Dewert
patent: 5444339 (1995-08-01), Domel et al.
patent: 5675849 (1997-10-01), Koch
patent: 5895992 (1999-04-01), Dreher
patent: 6300732 (2001-10-01), Brambilla
patent: 6377010 (2002-04-01), Roither
patent: 6679555 (2004-01-01), Bangert
patent: 6879073 (2005-04-01), Roither et al.
patent: 6927335 (2005-08-01), Lim et al.
patent: 2002/0036421 (2002-03-01), Bangert
patent: 2004/0093969 (2004-05-01), Nielsen
patent: 2007/0285035 (2007-12-01), Roither et al.
patent: 2008/0271246 (2008-11-01), Nielsen et al.
patent: 2009/0151490 (2009-06-01), Kristensen
patent: 202004007549 (2004-10-01), None
patent: 202004013071 (2004-11-01), None
patent: 2005112709 (2005-12-01), None
patent: 2005122840 (2005-12-01), None
Dykema Gossett PLLC
Linak A/S
Mullins Burton
LandOfFree
Linear actuator for a piece of furniture does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Linear actuator for a piece of furniture, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Linear actuator for a piece of furniture will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2678973