Bert R. Larson - San Jose CA Robert P. Wartenbergh - Woodside CA
Assignee:
Dysan Corporation - Santa Clara CA
International Classification:
G11B 2302
US Classification:
360133
Abstract:
A releasable hub locking mechanism for a disk hub assembly and a magnetic memory cartridge. A lever plate having an inner margin with a pair of hub flange pressure portions in surface contact with the lower surface of an inner hub flange arranged within the cartridge housing includes an outer margin with a lower release portion received in an aperture in the bottom portion of the cartridge housing. A longitudinally extending torsion spring has first and second ends secured against rotation by keeper bosses formed in the bottom casing portion and includes a central loop portion for applying a downward pressure to an inwardly extending tang located on the outer margin of the lever plate. The torsion spring normally provides a rotational force to the lever plate to cause the hub to be locked in place by interference between the lower surface of the bottom casing portion and a lower hub flange located externally of the casing. When the cartridge is inserted into an associated disk drive, the disk drive release pin counteracts the force provided by the torsional spring to release the hub for rotation.
Bert R. Larson - San Jose CA Robert P. Wartenbergh - Woodside CA Janusz Warszawski - Los Altos CA Markus Meier - Carpinteria CA David A. Sutton - Santa Ynez CA Bin-Lun Ho - Los Gatos CA Efim Bronshvatch - Saratoga CA
Assignee:
Dysan Corporation - Santa Clara CA
International Classification:
G11B 502 G11B 2302
US Classification:
360 97
Abstract:
A removable hard disc memory cartridge for use with a drive mechanism including a spindle located within a drive housing. The drive housing interior is provided with stationary position registration members which cooperate with mating side edge portions of the cartridge to provide positive positioning when the cartridge is inserted into the drive housing. A disc lock carried by the cartridge maintains the internally mounted cartridge disc in a secured locked position when the cartridge is not in use, the lock mechanism cooperating with release posts carried by the drive housing to free the disc for rotation just prior to engagement by the drive spindle. The disc has a self centering hub including a spindle referencing member having an aperture for receiving the free end of the spindle, the referencing member including angularly spaced arcuate segments closely matched to the radius of curvature of the drive spindle and providing a lateral abutment for the outer surface of the surface, the referencing member further including a spindle biasing spring laterally spaced from the arcuate segments and engageable with the outer surface of the spindle for urging the spindle into surface contact with the arcuate segments. The housing includes an end wall with an air exit port laterally displaced from the transducer access port, which provides a circumferentially oriented flow exit path for air entering the volume enclosed by the cartridge via the access port when the disc is rotated.
Roy E. Hurtig - Saratoga CA Bert R. Larson - San Jose CA Steven D. Smith - Sunnyvale CA
Assignee:
Verbatim Corporation - Sunnyvale CA
International Classification:
G03B 104 G11B 1532
US Classification:
242192
Abstract:
An improved tape cartridge with length dimension significantly greater than prior art cartridges of similar application, tape packs and drive belt being disposed to permit tape packs of greatly increased tape capacity and thereby a multifold increase in total cartridge capacity, and the front face being compatible for interfacing with most commercially available cartridge tape drives.
Bert Larson - Been there, done that. - Mostly computers 'n software mainframe Operating Systems (Wrote DOS) but also have Real Estate Company, have 2 farms, ...
Mostly retired, Still do a bit of Computer consulting, Real Estate Co. Inventions and always interested in anything new. - Owner
Education:
University of Minnesota - Business and Economics
Relationship:
Married
About:
Been there, Done that (everything). Geeky Techy but also rather basic earthy quite outdoorsishy and handyman to the max.State of the art Gadget Master. Animals are our friends (So are humans). I'...
Tagline:
Been there, done that.
Bragging Rights:
RESUME - I can make 3-minute eggs in 20 seconds and I’ve been know to reconstruct and improve automobile assembly lines during lunch hour. In 2008 I held my breath most of the way swimming across the English Channel while towing a barge full of caramel pudding. . I taught my Chickens to harmonize and play the “1812 Overture” by passing gas. I never accidentally dial wrong numbers. Some of my friends tried to get me onto the endangered species list. Most of the wild animals in Tasmania will come to me and “heel”… when I call them. One day I wrote 3 Operas while testing editing software. . . . Unbounded interest in many things (and good at them all), can leap over 27 picnic tables (with a running start), can smash grapefruit with one hand while playing a harmonica, I've rescued puppies from Eagles (while flying), I’m a spy for 5 different countries, also teach earthworms to “Sit, roll over, speak”. On weekends I often solve severe traffic congestion problems at major sporting events. Many casinos have banned me from their poker tables. . . Master of Camouflage -> Using only a hot air balloon and a golf ball retriever I planted Day Lilly’s in the White House Garden completely unnoticed.. I’m an expert in truck tire pressure gauges. I can play the entire full orchestra version of “Carmina Burana”. . . alone. As a favor to friends, I can accurately (+- .03%) predict winning lottery number if I want to. I designed a complete line of evening wear for woman’s volleyball tournament banquet events. . . I breed Pigeons with IQ’s greater than most college honor students. I can remember the last 200 TV channels I’ve switched to, in reverse order. I once won an apple peeling contest in Nova Scotia using only my house key. I have the worlds largest Furby collection. I often receive marriage proposals from women who have dialed the wrong number. I can usually jump into bed and be sound asleep before the light goes out after flipping the light switch. My dental floss and duct tape artwork hangs at 14 art gallery’s around the world. I once read “Gone with the Wind” while parallel parking my car. …For a complete list of achievements, refer to the National Archives, Isle 84, Section 187, partition 23, Volume 106, Chapter 865 thru 6,814.