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US 2012/0186310 A1Published application
Lock system for vehicles and the like
AssigneeBauer Products, Inc.
InventorBruce Bacon
Life of this patent
Estimating the term…
Abstract
A lock system is provided having a lock housing and a lock barrel, a keeper shoulder, at least one full positioner shoulder, and a positioner shoulder. A lock plug is received in the barrel for rotation between locked and unlocked positions, a keyway and tumblers. The tumblers may include a key tumbler, a positioner tumbler and a keeper tumbler. The lock plug is rotatable between a first rotary position and a second rotary position. A control key is received into the keyway to retract the lock tumbler and the keeper tumbler. Included is a partial positioner shoulder, and includes a cutout portion. Removal of the lock plug from the lock barrel requires insertion of the control key in the keyway in the first rotary position and rotation of the control key and the lock plug to the second rotary position.
Claims20
In a lock system for vehicles and the like of the type having at least one entry closure, comprising:
- a lock housing for mounting adjacent the entry closure and including a cylindrically-shaped lock barrel with at least one tumbler groove extending axially therealong, a keeper shoulder disposed proximate an inner portion of said lock barrel, at least one full positioner shoulder, and a positioner shoulder having a channel;
- a cylindrically-shaped lock plug shaped for close reception in said lock barrel for rotation between locked and unlocked positions, and including an axially extending keyway and a plurality of radially shiftable outwardly biased tumblers, comprising at least one key actuated tumbler, a positioner tumbler disposed adjacent to an outer portion of said lock plug, and a keeper tumbler disposed adjacent to an inner portion of said lock plug, wherein the lock plug includes a first rotary position and a second rotary position located a predetermined angle from said first rotary position;
- a control key having a shank portion shaped for close reception in said keyway with a plurality of bits configured to retract only said lock tumbler and said keeper tumbler;
- a partial positioner shoulder having an inner end disposed proximate said inner portion of said lock plug, an outer end disposed proximate the outer portion of said lock plug and including a cutout portion rotationally aligned with said positioner tumbler when assembled with a tip and a cutout face;
- and
- whereby removal of said lock plug from said lock barrel requires insertion of said control key in said keyway in said first rotary position and rotation of said control key and said lock plug to the second rotary position, thereby permitting axial shifting of said lock plug out of said lock barrel for repair or replacement.
3 more elements
A lock system for an entry closure, comprising:
- a lock housing for mounting adjacent the entry closure and including a cylindrically-shaped lock barrel with at least one tumbler groove extending axially therealong, a keeper shoulder disposed proximate an inner portion of said lock barrel, at least one full positioner shoulder, and a positioner shoulder having a substantially U-shaped channel;
- a cylindrically-shaped lock plug shaped for close reception in said lock barrel for rotation between locked and unlocked positions, and including an axially extending keyway and a plurality of radially shiftable outwardly biased tumblers, comprising at least one key actuated tumbler, a positioner tumbler disposed adjacent to an outer portion of said lock plug, and a keeper tumbler disposed adjacent to an inner portion of said lock plug;
- a control key having a shank portion shaped for close reception in said keyway with a plurality of bits configured to retract only said lock tumbler and said keeper tumbler;
- a master key having a shank portion shaped for close reception in said keyway with a plurality of bits configured to retract said lock tumbler and said positioner tumbler;
- a customer key having a shank portion shaped for close reception in said keyway with a plurality of bits configured to retract only said positioner tumbler and said lock tumbler;
- and
- a partial positioner shoulder including and extending from an inner end disposed proximate said keeper shoulder to an outer end disposed proximate said outer portion of said lock plug, wherein said outer end includes a cutout portion.
4 more elements
A lock system for vehicle entry closures, comprising:
- a lock housing for mounting adjacent the entry closure and including a cylindrically-shaped lock barrel with a plurality of tumbler grooves extending axially therealong, a keeper shoulder disposed proximate an inner portion of said lock barrel, and at least one full positioner shoulder;
- a cylindrically-shaped lock plug shaped for close reception in said lock barrel for rotation between locked and unlocked positions, and including an axially extending keyway and a plurality of radially shiftable outwardly biased tumblers, comprising at least one key actuated lock tumbler, a positioner tumbler disposed adjacent to an outer portion of said lock plug, and a keeper tumbler disposed adjacent to an inner portion of said lock plug, wherein said keeper tumbler includes a radially extending locator that is axially aligned with one of said plurality of tumbler grooves, said lock plug having a first rotary position in said lock barrel, wherein said keeper tumbler is positioned for abutting contact with said keeper shoulder and a second rotary position, wherein said keeper tumbler is axially aligned with said radially extending locator;
- a first key having a shank portion shaped for close reception in said keyway with a plurality of bits configured to retract only said lock tumbler and said keeper tumbler;
- a partial positioner shoulder including and extending from an inner end located proximate said keeper shoulder to an outer end including a cutout portion;
- and
- whereby removal of said lock plug from said lock barrel requires insertion of said first key in said keyway in said first rotary position and rotation of said first key and said lock plug to the second rotary position, thereby permitting axial shifting of said lock plug out of said lock barrel for repair or replacement.
3 more elements
The lock system of claim 19, further comprising:
- a second key having a shank portion shaped for close reception in said keyway with a plurality of bits configured to retract said lock tumbler and said positioner tumbler;
- and
- a third key having a shank portion shaped for close reception in said keyway with a plurality of bits configured to retract only said positioner tumbler and said lock tumbler.
Dependencies are inferred from the claim text.