Locks – Portable
Reexamination Certificate
2007-01-23
2007-01-23
Gall, Lloyd A. (Department: 3676)
Locks
Portable
C070S034000, C070S258000, C070S374000, C070S381000, C070S461000, C280S506000, C411S383000, C411S546000
Reexamination Certificate
active
10752931
ABSTRACT:
A method utilizes a locking device that includes a shackle member having a shank with a latch portion and a stop at opposite ends. A locking head mounts in a locked state on the latch portion but is removable when unlocked. A sleeve is carried on the shank but is removable. The sleeve and the shank together define a size conversion structure for the shackle. When the sleeve is on the shank, the shackle has one operative thickness to closely fit one size aperture, but when the sleeve is removed, the shackle has another, smaller operative thickness to fit a smaller aperture. A retaining member may be employed to resist removal of the sleeve. Two or more sleeves may be used to fit more than two apertures. These can be separately mountable onto the shank or may be nested on the shank, one inside of the other.
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Armored Trailer Hitch Lock (Item No. 37 DAT) distributed by Master Lock Company located at 137 W. Forest Hill Avenue, Oak Creek, Wisconsin 53154.
Carpenter John W.
Gall Lloyd A.
Henson Michael R.
Martin Timothy J.
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