Positionally restrained lap-supported devices

A lap-supported device comprising:

• a base member;
• an opposed pair of clamp arms;
• and
• a pair of spring-biased hinge mechanisms each pivotally connecting a respective one of the clamp arms to a respective side edge region of the base member, wherein
• the hinge mechanisms exert a bias force to maintain the clamp arms in a retracted state whereby the clamp arms are positioned adjacent to the base member but allow for pivotal spreading movement of the clamp arms against the bias force to an extended state thereof whereby the clamp arms are spread sufficiently to accommodate an individual's lap so as to be capable of being positioned adjacent to the individual's lateral thigh regions, the bias force causing the clamp arms to exert a clamping force against the individual's lateral thigh regions so as to positionally maintain the table assembly on the individual's lap.

A lap-supported device comprising:

• a base member;
• a pair of opposed slide plates connected to the base member for reciprocal sliding movements between retracted and extended positions thereof;
• a pair of clamp arms extending outwardly from the base member and connected to a respective one of the slide plates so as to be carried by the slide plates during movements between the retracted and extended positions thereof;
• and
• a tension spring assembly which operatively connects the slide plates for exerting a bias force to move the slide plates in a direction toward the retracted position thereof so that the clamp arms are moved toward one another in a direction that establishes a lesser separation distance therebetween and thereby exert a clamping force against a respective lateral thigh region of the individual.