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Safety utility blades, assemblies and methods of manufacturing

  • US 9,969,091 B2
  • Filed: 02/03/2016
  • Issued: 05/15/2018
  • Est. Priority Date: 02/03/2016
  • Status: Active Grant
First Claim
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1. A safety utility knife assembly, comprising:

  • a handle having an aperture and a blade retainer receptacle;

    a blade retainer having an upwardly extending blade release button and an upwardly extending blade catch, wherein the blade retainer includes a first half and a second half, and wherein the blade release button is received within the aperture and accessible therefrom when the blade retainer is inserted into the handle; and

    a replaceable safety blade having a blade securing aperture, wherein a cutting edge of the replaceable safety blade extends perpendicular to a longitudinally extending axis of the handle, wherein the replaceable safety blade is removable from the safety utility knife assembly when a user presses on the blade release button to disengage the blade catch from the blade securing aperture for allowing removable of the safety replaceable blade from the blade retainer wherein the blade retainer further comprises a longitudinally extending resilient arm having one fixed end and an opposing distal end, the blade catch is disposed at the distal end, and the blade release button is disposed between the fixed end and the distal end, such that when the user presses on the blade release button, the resilient arm flexes at the fixed end, and the blade catch moves in the same direction as the blade release button to release the replaceable safety blade.

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