A juvenile vehicle seat includes a base, a seat back, and a width controller. The base includes a seat bottom and first and second armrests mounted for pivotable movement on opposite sides of the seat bottom. The width controller can be operated to cause the first and second armrests to pivot relative...http://www.google.sh/patents/US8136880?utm_source=gb-gplus-sharePatent US8136880 - Adjustable width juvenile vehicle seat
