The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 26, 1991
Filed:
Nov. 23, 1988
David B Stein, New York, NY (US);
Other;
Abstract
This apparatus for 'Forming and Conrolling Large-Volume Bubbles' consists essentially of four elements: First, a bubble-forming loop made of a flexible, large-pore (substantially noncapillary) material able to store large quantities of bubble solution by adhesion to a large surface area, by formation of numerous small reservoirs in the large pores, and by surface tension in the solution film enclosing the loop material, said film uniting with the solution stored within and able to release the solution quickly to an expanding bubble; second, means of supporting said bubble-forming loop; third, means of controllably opening and closing the bubble-forming loop while minimizing reliance on inertial or centrifugal forces; and fourth, means of maximizing continuity of supply of solution to the bubble-forming loop. Soap bubbles up to eight feet across have been made with the apparatus.