Brakes – Internal-resistance motion retarder – Resistance alters relative to direction of thrust member
Patent
1995-06-08
1996-07-16
Oberleitner, Robert J.
Brakes
Internal-resistance motion retarder
Resistance alters relative to direction of thrust member
188300, 267294, B65H 5910
Patent
active
055358616
ABSTRACT:
A plurality of embodiments of dual-rate linear dampers which can be utilized as hold open rods. These dampers provide significantly greater resistance to movement in one direction than in the other and, in one embodiment, effectively lock in the hold open position unless and until the design breakover force is incurred. The comparative resistance to movement in the two linear directions can be altered within the range of between five and ten times the force in the resistive embodiment by varying a number of parameters including, but not limited to, the number of disks in the string, the thickness of the disk flange, the number and depth of grooves in one or both surfaces of the flange, the tapering of the flange, and the properties of the elastomer.
REFERENCES:
patent: 1772240 (1930-08-01), Burk
patent: 2042443 (1936-05-01), Buckstone
patent: 2630887 (1953-03-01), Paquin
patent: 2644504 (1953-07-01), Vick
patent: 3195848 (1965-07-01), Miller et al.
patent: 3741514 (1973-06-01), Snurr
patent: 3758063 (1973-09-01), Lacey
patent: 3828651 (1974-08-01), Dorner et al.
patent: 3861815 (1975-01-01), Landaeus
patent: 3866964 (1975-02-01), Prater
patent: 3885764 (1975-05-01), Pabreza
patent: 3960250 (1976-06-01), Wiater
patent: 4023649 (1977-05-01), Wood
patent: 4113222 (1978-09-01), Frinzel
patent: 4180346 (1979-12-01), Blake
patent: 4221430 (1980-09-01), Frobose
patent: 4627591 (1986-12-01), Heckmann
patent: 4691890 (1987-09-01), Han
patent: 4706916 (1987-11-01), Cullmann et al.
patent: 4765444 (1988-08-01), Bauer et al.
patent: 4892279 (1990-01-01), Lafferty et al.
patent: 4997171 (1991-03-01), Toms
patent: 5211379 (1993-05-01), Porter
patent: 5257680 (1993-11-01), Corcoran
Bartz C. T.
Lord Corporation
Oberleitner Robert J.
Thomson Richard K.
Wayland Randall S.
LandOfFree
Dual-rate linear damper does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Dual-rate linear damper, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dual-rate linear damper will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1778357