Closure fasteners – Seal bolts
Patent
1979-05-15
1981-07-28
Lyddane, William E.
Closure fasteners
Seal bolts
292318, 292324, 411517, E05C 1302, F16B 1900
Patent
active
042807263
ABSTRACT:
Keyless lockable security devices in the form of a padlock or clevis pin for use in securing bulk containers in which the devices consist of a body member having at least one blind bore therein and a male member having limbs corresponding to the number of blind bores, insertable in the bore or bores.
Each of the bores and the limbs have an annular recessed portion of substantially crochet hook form and an annular member of spring steel split cross-sectionally in the form of a C-ring is located in the recessed portion of the body member.
The male limb is driven into the bore until its recessed portion is engaged by the annular member to prevent withdrawal of the limb from the bore.
The body member may have two parallel bores, the male member being in the form of a substantially U-shaped shackle with its limbs insertable in the respective bores and the free end surfaces of the limbs are provided with aligned slots into which is inserted a pin through a bore transverse to the blind bores to prevent rotation of the limbs if the limbs are separated from one another.
REFERENCES:
patent: 2322949 (1943-06-01), Lux
patent: 2615735 (1952-10-01), Heimann et al.
patent: 3486286 (1969-12-01), Samaga
patent: 3730578 (1973-05-01), Gerlach
patent: 3812756 (1974-05-01), Wenger
patent: 3937507 (1976-02-01), McCoag
Aardee Spring & Lock Company Limited
Lyddane William E.
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