Modular lift assembly

Details Modular lift assembly Modular lift assembly

2007-11-13

2007-11-13

Marcelo, Emmanuel M (Department: 3654)

Implements or apparatus for applying pushing or pulling force

Device or member for contacting and guiding moving cable

Including rotatable, cable contacting, pulley wheel element

C254S331000, C254S388000

Reexamination Certificate

active

11463823

ABSTRACT:
A lift assembly having a drum rotatably mounted to a frame and linearly translatable with respect to the frame. A plurality of head blocks are connected to the frame along a helical mounting path, wherein linear translation of the drum during takeoff or take-up maintains a predetermined fleet angle between a take off point from the drum and the head block. A loft block is disposed within the frame for defining a vertical cable path from within a footprint of the frame.

REFERENCES:
patent: 977499 (1910-12-01), Bailey
patent: 977500 (1910-12-01), Bailey
patent: 1263628 (1918-04-01), Vallen
patent: 1340066 (1920-05-01), Lemle
patent: 1473336 (1923-11-01), Connelly
patent: 1821563 (1931-09-01), Mitchell et al.
patent: 2357462 (1944-09-01), Ferguson
patent: 2649279 (1953-08-01), Jones et al.
patent: 4046235 (1977-09-01), Shutt
patent: 4062519 (1977-12-01), Jacobs
patent: 4156521 (1979-05-01), Harman
patent: 4251059 (1981-02-01), Fougea
patent: 4324386 (1982-04-01), Gagnon et al.
patent: 4446587 (1984-05-01), Jump
patent: 4606527 (1986-08-01), Ziller et al.
patent: 4662628 (1987-05-01), Chatenay pouse Compagnone
patent: 4772923 (1988-09-01), Lein
patent: 4802787 (1989-02-01), Bays
patent: 5031574 (1991-07-01), McDowell
patent: 5141085 (1992-08-01), McCormick
patent: 5361565 (1994-11-01), Bayer
patent: 5711713 (1998-01-01), Krueger
patent: 6080981 (2000-06-01), Payne et al.
patent: 6364062 (2002-04-01), Ericson et al.
patent: 6520485 (2003-02-01), Soot
patent: 6634622 (2003-10-01), Hoffend, Jr.
patent: 6691986 (2004-02-01), Hoffend
patent: 6889958 (2005-05-01), Hoffend
patent: 6988716 (2006-01-01), Hoffend
patent: 6997442 (2006-02-01), Hoffend
patent: 2003/0030045 (2003-02-01), Hoffend
patent: 2003/0111652 (2003-06-01), Hoffend
patent: 2004/0084665 (2004-05-01), Hoffend
patent: 2004/0098944 (2004-05-01), Hoffend
patent: 2004/0099852 (2004-05-01), Hoffend
patent: 2004/0183060 (2004-09-01), Hoffend
patent: 2005/0247919 (2005-11-01), Hoffend
patent: 2006/0169662 (2006-08-01), Hoffend
patent: 255 522 (1988-04-01), None
patent: 37 37 612 (1989-06-01), None
patent: 42 04 153 (1993-08-01), None
patent: 299 12 572 (1999-09-01), None
patent: 0 540 136 (1993-05-01), None
patent: 0 778 239 (1997-06-01), None
patent: 2 689 415 (1993-10-01), None
Cyclorama Batten Systems, Regional Performing Arts Center, Philadelphia, PA. Dec. 15, 1999.
English Abstract of publication DE 37 37 612.
English Abstract of publication DE 42 04 153.
English Abstract of publication FR2689415.

Affiliated with

Also associated with

Rating

Modular lift assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Modular lift assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Modular lift assembly will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3867129