Tamper-proof bag seal
AssigneeAmerican Casting and Manufacturing Corporation
InventorJoseph H. C. Wenk
Life of this patent
Estimating the term…
Abstract
A tamper-proof seal for sealing a bag or the like is provided. The seal includes a housing having a strap engagement device, and a strap coupled to the housing. The strap engagement device includes a locking member that lockingly engages a surface of the strap when the strap is inserted into the housing. The locking device is movable towards the strap upon an attempt to disengage the strap from the locking means. The strap includes a pair of adjacent protuberances located near the housing. When the strap is tightened about a bag, the protuberances clench the bag material while providing a convenient slot in which a knife can be inserted. A loop member may be coupled to the housing. The loop member includes an opening through which the strap is inserted prior to inserting it within the housing.
Claims18
A tamper-proof seal for closing bag or the like, comprising:
- a housing, said housing including a passage extending therethrough and an entrance opening communicating with said passage;
- a strap coupled to said housing, said strap including a free end insertable into said passage;
- said housing further including strap engagement means coupled to said housing, said strap engagement means including locking means including a strap engagement surface for lockingly engaging a surface of said strap when said strap is at least partially positioned within said passage;
- means for moving said locking means towards said strap when said strap is at least partially within said passage, said moving means being actuable upon an attempt to disengage the strap from the locking means, said moving means including means for maintaining said strap engagement surface of said locking means substantially parallel to said surface of said strap at substantially all times and for resiliently urging said strap engagement surface towards said strap;
- means for moving said locking means in a direction parallel to the direction of insertion of said strap into said passage,
- said housing including means for abutting against said locking means upon movement of said locking means towards said entrance opening, thereby preventing said locking means from being moved further towards said entrance opening.
A tamper-proof bag seal for closing a bag or the like, comprising:
- a housing, said housing including a passage extending therethrough and an end wall including an aperture communicating with said passage;
- a tab extending from said housing and parallel to said end wall, said tab having a larger width than said end wall;
- a strap coupled to said coupled to said housing, said strap including a free end insertable into said passage and forming a loop when inserted into said passage;
- means for engaging said strap within said housing;
- a loop member;
- and
- a flexible, thin connecting member connecting the loop member to the tab extending from said housing, the loop member including an opening through which the strap can be inserted, the connecting member having sufficient length that the loop member is positionable in adjoining relation to the aperture in said end wall, said connecting member being connected to said tab in a laterally offset position with respect to said end wall.
A tamper-proof bag seal for closing a bag or the like, comprising:
- a housing, said housing including a passage extending therethrough and an entrance opening adjoining said passage;
- a strap coupled to said housing, said strap including a free end insertable into said passage;
- strap engagement means coupled to said housing, said strap engagement means including locking means for lockingly engaging a surface of said strap when said strap is at least partially positioned within said passage, said locking means including first and second laterally extending projections, each of said projections including an inclined surface generally opposing said entrance opening;
- said housing including a pair of inclined surfaces opposing said inclined surfaces of said projections and engageable therewith upon movement of said locking means towards said entrance opening;
- means of resiliently supporting said locking means such that said locking means are movable in a direction parallel to the direction of insertion of said strap into said passage through said entrance opening;
- and
- means for moving said locking means towards said strap, said moving means being actuable upon an attempt to disengage said strap from said locking means.
Dependencies are inferred from the claim text.