Lock for fuel tank cover
AssigneeShaw Aero Devices, Inc.
InventorsFrancis Shaw, David W. Jones
Life of this patent
Estimating the term…
Abstract
An improved lock for a filler cap having a cover adapted to be received within the tank opening with a retaining member connected at the lower face of the cover for cooperating with the wall of the opening to fasten the cap within the opening; the lock is mounted in the cover and extends downwardly toward the retaining member and the retaining member has cooperating means engagable with the lock when the retaining member is in the fastened position. The lock and the cooperating means prevent movement of the retaining member from the fastened position.
Claims8
In a filler cap assembly for a tank having an opening defined by a wall, the filler cap having a cover adapted to be received within the opening, a retaining member connected to the lower face of the cover for cooperating with the wall of the opening to fasten and unfasten the cap within the opening, and an operating handle connected to the retaining member for moving the retaining member between unfastened and fastened positions in the opening;
- the improvement comprising:
- (a) lock means mounted in the cover and extending toward the retaining member;
- and
- (b) cooperating means on the retaining member for engagement by the lock means when the retaining member is in the fastened position to prevent movement of the retaining member from the fastened position.
In a filler cap assembly for a tank having an opening defined by a wall, the filler cap having a cover with a lower face adapted to be received in a non-rotative relationship within the opening, a rotatable retaining member connected to the lower face of the cover for cooperating with the wall of the opening to fasten and unfasten the cap within the opening, an operating handle connected to the retaining member for rotating the retaining member between unfastened and fastened positions in the opening;
- the improvement comprising:
- (a) lock means mounted in the cover extending downwardly toward the retaining member and movable between an unlocking position and a locking position which blocks the path of rotation of the retaining member, and
- (b) cooperating means on the retaining member for engagement by the lock in its locking position to prevent rotation of the retaining member from the fastened position.
In a filler cap assembly for a tank having an opening defined by a wall, the filler cap having a cover adapted to be received within the opening, the cover having upper and lower faces, a retaining member for cooperating with the wall of the opening to fasten and unfastened the cap within the opening, an axle connecting the retaining member to the lower face of the cover the axle having an upper end extending upwardly through the upper face of the cover, an operating handle connected to the axle for moving the retaining member between fastened and unfastened positions in the opening;
- the improvement comprising:
- (a) lock means mounted in the cover and extending downwardly toward the retaining member;
- (b) cooperating means on the retaining member for engagement by the lock when the retaining member is in the fastened position to prevent movement of the retaining member from the fastened position;
- (c) the upper end of the axle having a collar of larger diameter the axle;
- and
- (d) an axle pin attaching the operating handle to the axle, the pin constructed to break under lighter impact forces than the lock means or the retaining member cooperating means.
Dependencies are inferred from the claim text.