US 12,214,459 B2
Lock and pin combination for cold working cracks
Gary Reed, Turlock, CA (US)
Assigned to LOCK-N-STITCH, INC., Turlock, CA (US)
Filed by LOCK-N-STITCH, INC., Turlock, CA (US)
Filed on Nov. 1, 2023, as Appl. No. 18/499,618.
Application 18/499,618 is a continuation of application No. 17/941,532, filed on Sep. 9, 2022, granted, now 11,858,079.
Application 17/941,532 is a continuation of application No. 17/114,787, filed on Dec. 8, 2020, granted, now 11,465,246.
Prior Publication US 2024/0058905 A1, Feb. 22, 2024
Int. Cl. B23P 6/04 (2006.01); B23B 47/28 (2006.01); F16B 5/00 (2006.01); F16B 35/04 (2006.01)
CPC B23P 6/04 (2013.01) [B23B 47/284 (2013.01); F16B 5/0052 (2013.01); F16B 35/041 (2013.01); B23B 2247/04 (2013.01); B23B 2247/12 (2013.01)] 10 Claims
OG exemplary drawing
 
1. An apparatus for removable attachment on a surface of a cast metal component proximately overlying a crack to be repaired in the cast metal component, comprising:
at least one drill guide having a plurality of through passages dimensioned to receive means for drilling out material of the cast metal component;
wherein said through passages are arranged in said drill guide to define a drilling pattern for forming a lock receiving recess in the cast metal component, and
wherein a shape of said lock receiving recess corresponds to a shape of a lock such that the lock, once received in said lock receiving recess, draws the crack closed to prevent propagation of the crack;
wherein said at least one drill guide comprises a first drill guide and a second drill guide.