US 12,257,640 B2
Recip blade
Matthew C. Green, Amherst, MA (US); Stephen A. Hampton, East Longmeadow, MA (US); and William B. Korb, Broad Brook, CT (US)
Assigned to BLACK & DECKER INC., New Britain, CT (US)
Filed by BLACK & DECKER INC., New Britain, CT (US)
Filed on May 9, 2024, as Appl. No. 18/659,153.
Application 18/659,153 is a continuation of application No. 18/099,554, filed on Jan. 20, 2023, granted, now 12,005,514.
Application 18/099,554 is a continuation of application No. 15/855,325, filed on Dec. 27, 2017, granted, now 11,583,945, issued on Feb. 21, 2023.
Application 15/855,325 is a continuation of application No. 14/563,540, filed on Dec. 8, 2014, abandoned.
Prior Publication US 2024/0286210 A1, Aug. 29, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. B23D 61/12 (2006.01)
CPC B23D 61/121 (2013.01) [B23D 61/128 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A reciprocating saw blade comprising:
a blade body; and
a cutting edge provided along one edge of the blade body and defining a cutting direction, the cutting edge comprising a repeating pattern of cutting teeth with a pitch of at least 12 teeth per inch, wherein each repeating pattern comprises
a leading tooth with respect to the cutting direction, the leading tooth comprising
a first tooth tip defining a first height;
a first rake face defining a first negative rake angle; and
a first primary clearance surface extending from the first tooth tip and defining a first included angle between the first rake face and the first primary clearance surface;
a trailing tooth following the leading tooth with respect to the cutting direction, the trailing tooth comprising
a second tooth tip defining a second height;
a second rake face defining a second rake angle that is greater than the first rake angle; and
a second primary clearance surface extending from the second tooth tip and defining a second included angle between the second rake face and the second primary clearance surface, wherein the second included angle is less than the first included angle.