1999-01-14
1999-09-28
Barrett, Suzanne Dino
Locks
Portable
Fetters
245985, 246001, 70 14, E05B 7300
Patent
active
059569808
ABSTRACT:
A three-piece safety lock for locking any size trailer safety chain to any size vehicle receiver hitch comprising a primary catch, a locking catch and a keeper element. The safety lock includes a positive self-locking mechanism, termed a keeper element, which ensures that any safety connection or attachment will not become detached from the safety lock, particularly while a vehicle is in transit. The keeper element is pivotably secured to and locks a primary catch and a locking catch. Both the primary catch and the locking catch are configured with corresponding catch openings for receiving the length of a chain or similar article. The primary catch also is provided with a cavity for receiving and locking a link of chain.
REFERENCES:
patent: 227793 (1880-05-01), Kingston
patent: 712959 (1902-11-01), Pohlman
patent: 872499 (1907-12-01), Cooper
patent: 1197020 (1916-09-01), Farrar
patent: 1420949 (1922-06-01), Schindler
patent: 1442043 (1923-01-01), Bosserman
patent: 1472038 (1923-10-01), Banes
patent: 1518541 (1924-12-01), Nelson
patent: 1523545 (1925-01-01), Lamb
patent: 1570865 (1926-01-01), Soucy
patent: 1754043 (1930-04-01), Port
patent: 2401145 (1946-05-01), Erffmeyer
patent: 2795024 (1957-06-01), Donaldson
patent: 4085599 (1978-04-01), Fischer et al.
patent: 5070712 (1991-12-01), Fox
patent: 5743116 (1998-04-01), Suster
Barrett Suzanne Dino
Borsari Peter A.
LandOfFree
Safety lock does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Safety lock, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Safety lock will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-691646