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Jason Barton
National Sales & Marketing Manager
(630) 797-4902

Novel Combination Locking Cap for Prescription Drugs

Combination Locking Cap

New Plastic Locking Cap Uses Dukane's Ultrasonic Welding Systems for Speed, Accuracy, and Precision Manufacturing

ANAHEIM, Calif., February 8, 2011 - Cap-N-Lock LLC, Lincoln, Calif., has developed the industry's first combination locking cap offering maximum security against unauthorized use of prescription medications. The plastic locking cap is claimed to be the safest child-proof cap, provides maximum protection against teen prescription use, and is a senior-friendly packaging option. The device uses precision ultrasonic welding technology from Dukane for speed, accuracy, and precision manufacturing. At Booth #2819 at the Medical Design & Manufacturing West (MD&M) show here, Dukane will weld the cap on its new iQ servo welder in its Lean Manufacturing Cell.

The locking cap has combination dials which create a barrier to entry for young children and teens, according to Joseph Simpson, president of Cap-N-Lock LLC. The company produces the cap and two adapters which fit a wide range of the most common prescription bottles. The locking cap components, molded by Henry Plastics, Fremont, Calif., consist of eight injection molded parts made of lightweight, strong acrylonitrile-butadiene-styrene (ABS) plastic. Assembly and manufacturing is done by Cap-N-Lock LLC.

The locking cap unit is assembled from the bottom up with the locking mechanism (dial numbers included) dropped in first, followed by a tension plate and then the lower twist-on cap. The lower housing ring is then ultrasonically welded to the main housing to complete the assembly.

The speed, accuracy, and precision of the ultrasonic welding process are critical in the production of the locking cap, according to Simpson. "The weld needs to be perfect every time to ensure a high level of quality control," says Simpson.

Dukane worked with Cap-N-Lock from the concept stage and provided feasibility studies, design assistance, tooling, and on-site support. Dukane ultimately provided a turnkey assembly system which included custom tooling (horn), a custom nesting (holding) fixture, and a press system.

The locking cap is sold as an aftermarket product for $9.99 at Save Mart and Ralph's supermarkets on the West Coast. It is also available at and will soon be offered at pharmacies.

About Cap-N-Lock LLC
Cap-N-Lock LLC, based in Lincoln, Calif., was founded under the Educating Young Entrepreneurs Co. program, a non-profit enterprise which focuses on job creation in the U.S. Cap-N-Lock is a problem-solving company that protects both children and teens from unsupervised prescription drug ingestion. The company's new combination locking cap breaks new ground in security for prescription medications, offering a more effective option than child-resistant caps and a more user-friendly alternative for seniors. For more information, call (916) 531-3525 or visit

About Dukane
Dukane is headquartered in St. Charles, Ill., is a leading supplier of ultrasonic, vibration, spin, thermal press, and hot-plate welders for OEM and commercial plastic assembly markets. Key end-use markets include medical, automotive, consumer electronics, appliance, and packaging. Dukane is an ISO 9001:2000 certified manufacturer. More information is available by calling (630) 797-4902 or visit