×

ROTARY LOCK PROTECTION MEMBER

  • US 3,795,123 A
  • Filed: 12/20/1972
  • Issued: 03/05/1974
  • Est. Priority Date: 12/20/1972
  • Status: Expired due to Term
First Claim
Patent Images

1. A rotary lock protection member for use in a heavy walled portion of a vault, a door for a vault and like portions for a coin receiving and retaining system, the lock protection member in combination with the heavy walled portion including:

  • (a) a stepped bore formed in and through a heavy walled portion of said system;

    (b) a rotatable plug having a key passageway therethrough and havinG its outer longitudinal extent formed with at least two diameters of different extents, the largest diameter being rotatably carried in the stepped bore in the heavy wall and with said largest diameter portion being inward of the outer surface of the heavy wall portion and with the adjacent next smaller diameter portion rotatably supported in said bore and extending toward the outer surface of the heavy walled portion, this smaller diameter in combination with the larger diameter establishing a shoulder which is engaged by cooperating means in the bore to position the plug so that its outer facing end is next to the outer surface of the heavy walled member, and with at least the exposed end surface of the plug which is not protected by said heavy wall being hardened to resist drilling, chiseling and the like, and (c) a key-type lock carried by said heavy walled portion with the entrance end of the lock adjacent the larger diameter end of the rotary plug and in alignment with the key passageway, the plug and lock in mounted condition being retained by fixed means so as to resist violent attacks by hammers, punches and the like, said plug in mounted condition being freely rotatable in said bore while its longitudinal movement is restrained within predetermined limits in said bore.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×