Radial line punch
Quick release mechanism for oscillating saw blade
Method of making a tear line-forming perforation in a sealed marginal portion of a bag and a sealed bag formed thereby Patent #: 4176567
ApplicationNo. 529646 filed on 05/29/1990
US Classes:83/618, Plural tools with same drive means83/698.91, Tool is single element with continuous cutting edge (e.g., punch, etc.)83/699.31, Adjustable493/366, By relatively adjustable cutting edges or cutting and scoring edges493/372By reciprocatory tool
ExaminersPrimary: Yost, Frank T.
Assistant: Jones, Eugenia
Attorney, Agent or Firm
International ClassesB26F 001/02
AbstractA clamp member has a pair of integral jaws defining an aperture in which the upper end of a punch adaptor is clamped when the jaws are forced closed. The adaptor has a punch fastened to its lower end, for example by a tongue and groove connection; and a slitter blade is releasably attached to the clamp member adjacent the flexible jaws. The upper end of the punch adaptor is tubular and has therein axially extending slots forming radially compressible sectors which can be forced into gripping engagement with an operating shaft when the jaws on the clamp member are forced closed over the punch adaptor.
Field of SearchPlural tools with same drive means
Plural distinct cutting edges on same support
At separate station from heat sealing
Partial severance to form interconnected products
Making plural, separate cuts by distinct cutting edges
By relatively adjustable cutting edges or cutting and scoring edges
By reciprocatory tool
Enlarged head in complementary recess, e.g., dovetail, etc.
INTERFITTED MEMBERS WITH EXTERNAL BRIDGING PIECE
Plural channels in connector
Connected by double clamp