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:
Nov. 15, 1994
Filed:
Mar. 26, 1993
Harry Hayes, Wilbraham, MA (US);
Charlotte C Wakeham, Hayling Island, GB;
Tambrands, Inc., White Plains, NY (US);
Abstract
A tampon comprising a compressed pledget of absorbent material, shaped for insertion into a body cavity, and a withdrawal cord attached to the tampon to facilitate removal of the tampon from the body cavity. The pledget, prior to compression, is a filament tow of substantially hydrophilic filaments. The filaments have a substantially permanently crimped configuration, and are disposed in a randomly out-of-phase orientation with respect to each other so as to increase the pore volume ratio of the pledget, i.e., the fraction of pledget volume occupied by interfilament spaces or interstices between filaments. Preferably the pore volume ratio of the tampon is in the range of 60 to 95%, more preferably 70 to 90%, most preferably 80 to 85%.