Horizontally supported planar surfaces – Vertically adjustable – Shelf type
Patent
1983-09-20
1985-12-17
Lyddane, William E.
Horizontally supported planar surfaces
Vertically adjustable
Shelf type
108136, 108144, 108145, 248421, 248588, A47B 916
Patent
active
045586489
ABSTRACT:
A scissors mechanism supports a platform, and is coupled to a sealed gas cylinder or other energy-storage device in such a way that the cylinder tends to lift the platform, and an article on the platform--such as a television set, a bar, office equipment, a tabletop, etc. The lift may be enclosed in a compact cabinet so that the article on the platform is concealed when down, and accessible when up.
Energy released in lowering the article is stored in compression of gas within the storage device, and subsequently reused in raising the article. Compensation is provided for the strongly varying mechanical advantage provided by the scissors mechanism, so that the stored energy can operate smoothly on the article throughout the entire operating range of the scissors, making possible the use of the energy-recycling system.
In one embodiment the stored energy alone is made capable of raising the article through the entire range of the mechanism, but the article can be easily lowered by manual application of light downward force--even though, for mechanical simplicity, the energy-storage device remains connected to raise the article.
In another embodiment this manual application of controlling force is replaced by a remote-control actuator, such as a small motor or a small hydraulic or pneumatic cylinder. Such a remote-control actuator applies pilot forces upward or downward to control the direction of operation, while the sealed gas cylinder generally bears the weight of the platform and the article on it.
REFERENCES:
patent: 727192 (1903-05-01), Payne
patent: 744613 (1903-11-01), Reimold
patent: 758431 (1904-04-01), Edeline
patent: 1078759 (1913-11-01), Wichertjes
patent: 1817418 (1931-08-01), Munns
patent: 2267973 (1941-12-01), Demcak
patent: 2471901 (1949-05-01), Ross
patent: 2645538 (1953-07-01), Segal
patent: 2829863 (1958-04-01), Gibson
patent: 3007676 (1961-11-01), Javorik
patent: 3110476 (1963-11-01), Farris
patent: 3245366 (1966-04-01), Fox
patent: 3282566 (1966-11-01), Clarke
patent: 3410328 (1968-11-01), Sasai
patent: 3472183 (1969-10-01), Goodman
patent: 3750846 (1973-08-01), Huxley, III
patent: 3805712 (1974-04-01), Taylor et al.
patent: 4097941 (1978-07-01), Merkel
patent: 4151804 (1979-05-01), Wache et al.
patent: 4381714 (1983-05-01), Henneberg et al.
patent: 4391345 (1983-07-01), Paul
Evans Archibald D.
Franklin Duane R.
Lift-R Technologies, Inc.
Lyddane William E.
Rendos Thomas A.
LandOfFree
Energy-recycling scissors lift does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Energy-recycling scissors lift, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Energy-recycling scissors lift will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2169786