U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Blade sharpener insert for knife scabbard

Patent 4502218 Issued on March 5, 1985. Estimated Expiration Date: Icon_subject December 29, 2002. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

2767530

3676961

3774350

3861246

Knife sharpener
Patent #: 4091691
Issued on: 05/30/1978
Inventor: Bayly

Knife scabbard with integral blade sharpener Patent #: 4428515
Issued on: 01/31/1984
Inventor: Mayer

Inventors

Assignee

Application

No. 06/454466 filed on 12/29/1982

US Classes:

30/138, With sharpening feature30/139, Rotary sharpener451/555Work guide

Examiners

Primary: Bell, Paul A.
Assistant: Heyrana, Sr., Paul M.

Attorney, Agent or Firm

International Classes

B24D 15/00 (20060101)
B24D 15/08 (20060101)
B26B 29/00 (20060101)
B26B 29/02 (20060101)

Abstract

A flexible knife scabbard has a blade-receiving elongated passage open at one end extending longitudinally therein and has a blade sharpening slot open at both ends extending laterally therethrough and transversely through the elongated passage. Knife blade sharpening insert means including a pair of mating rigid plastic insert members or components are disposed in the elongated passage and each component includes an aperture in registry with the other and with the blade sharpening slot. The insert means further includes a pair of cylindrical ceramic blade sharpening elements or rods, one mounted on each insert component and overlying a portion of the associated aperture. The two rods are disposed in V-shaped arrangement relative to each other and located at (and overlapping) an end of the sharpening apertures in the insert member and the sheath slot. The knife blade slips into the scabbard between the insert members in normal use. In a sharpening operation, the knife blade is inserted through the sharpening slot and through the sharpening apertures and moved reciprocably therein so that the blade edge to be sharpened bears or wipes against the sharpening elements. Such movement is repeated until the desired degree of sharpness is attained.

PatentsPlus Images
Enhanced PDF formats
loading...
PatentsPlus: add to cart
PatentsPlus: add to cartSearch-enhanced full patent PDF image
$9.95more info
PatentsPlus: add to cart
PatentsPlus: add to cartIntelligent turbocharged patent PDFs with marked up images
$18.95more info
 
Sign InRegister
Username  
Password   
forgot password?