Warning light security device
AssigneeSafe-Lite, Inc.
InventorWilton K. Decker
Life of this patent
Estimating the term…
Abstract
A warning light housing includes a casing having an aperture which aligns with a chamber in the base to present a receptacle for receiving a plug-type lock. With the lock residing within the receptacle, separation of the base and casing is prohibited thus preventing access to the housing interior. The lock includes a latch element which is selectively movable between locking and non-locking positions by turning a key within the lock. In its locking position, the latch element extends radially outwardly from the lock periphery into a slot in the housing base to restrain the lock within the receptacle; and, in its non-locking position, the latch element lies within the lock periphery allowing removal of the lock from the receptacle.
Claims10
In combination with a housing for a warning light of the type wherein a removable casing is pivotally connected at one end to a base, and wherein the casing has an aperture at its opposite end which aligns with an opening in the base, wherein the improvement comprises:
- a key;
- a plug-type lock which is received by the opening in said base and the aperture in said casing to prevent relative movement therebetween while disposed therein, said lock having:
- a lock housing having an interior which receives said key;
- a locking cylinder rotatable within said lock housing having a radially extending latch element, and a key receiving slot at one end that faces axially into said lock housing;
- said latch element extending radially outwardly from the interior of said lock housing, and being movable between locking and non-locking positions upon actuation by said key, the locking position restraining and the non-locking position allowing removal of said lock from said base and said casing;
- a key receptor rotatable within said lock housing having an axial key receiving channel, and that turns with said locking cylinder upon insertion and rotation of said key;
- and
- an arched key restrainer within said lock housing and disposed axially between said locking cylinder and said key receptor presenting a ridge lying in a transverse plane adapted to match a key notch upon insertion and turning a proper key.
In a lock mechanism, the combination comprising:
- an outer barrel for housing lock elements, and having a circumferential opening extending through a sector of its perimeter;
- a locking cylinder rotatable within said barrel having a radially extending latch element passing through said circumferential opening, and a key receiving slot at one end that faces axially into said barrel;
- a key receptor rotatable within said barrel having an axial key receiving channel, and that turns with said locking cylinder upon insertion and rotation of a key;
- and
- an arched key restrainer within said barrel and disposed axially between said locking cylinder and said key receptor presenting a ridge lying in a transverse plane adapted to match a key notch upon insertion and turning a proper key.
A plug-type lock, comprising:
- a lock housing having a hollow interior, said housing being an enclosure for lock elements which are actuated to a locking position to prevent removal of said plug-type lock from engagement with a pair of members to retain them in secured relationship, said lock elements comprising:
- a key receptor having a key-receiving entrance in its forward end and having a longitudinal channel therein extending from the key-receiving entrance to its rearward end;
- a movable locking cylinder having a key-receiving slot in one end and having a latch element associated therewith;
- an arched key restrainer within said lock housing and disposed axially between said locking cylinder and said key receptor presenting a ridge lying in a transverse plane adapted to match a key notch upon insertion and turning a proper key;
- and
- a key insertable within the key-receiving entrance to pass through the channel in said key receptor and the key-receiving slot to engage said movable locking cylinder and actuate said latch element between locking and non-locking positions.
A plug-type lock, comprising:
- a lock housing having a longitudinal bore and an arcuate opening:
- a key receptor disposed within said lock housing which includes a pair of key receptor halves that are spaced from one another to provide a channel therebetween;
- a locking cylinder which is rotatable within said lock housing having a key-receiving projection in its forward end extending into said collar, said key-receiving projection including a diametral indentation, and having a radial latch element extending from its periphery outwardly through the arcuate opening in said lock housing, said latch element being rotatable between locking and non-locking position;
- an arched key restrainer within said lock housing and disposed axially between said locking cylinder and said key receptor presenting a ridge lying in a transverse plane adapted to match a key notch upon insertion and turning a proper key;
- and
- a key, which extends longitudinally of said lock housing therewithin and passes through the channel between said key receptor halves and said annular collar into the diametral indentation in said key-receiving projection engaging said locking cylinder whereby rotation of said key rotates said latch element between its locking and non-locking positions.
Dependencies are inferred from the claim text.