Quick acting coupling
AssigneeMarine Moisture Control Company, Inc.
InventorWilliam H. Gravert
Life of this patent
Estimating the term…
Abstract
A quick acting coupling for coupling together heavy cargo pipes which includes releasable locking means to permit rotation of a cam element in one direction and prevent rotation in an opposite direction, and upon release of this locking means to permit rotation in the opposite direction.
Claims12
A quick acting coupling for coupling together a pair of heavy pipes or hoses, comprising:
- a clamp support;
- a bolt threadedly received within and coupled to said clamp support, said bolt including a shank portion;
- a rotable cam element rotatable about said bolt and held to said clamp support as a unit;
- and,
- releasable locking means to lock said cam element to said bolt to permit rotation in one direction and prevent rotation in an opposite direction;
- said releasable locking means including a ratchet carried by said bolt, and a spring urged locking element supported in said cam element, a compression spring urging said locking element into engagement with said ratchet, said locking element including first and second dissimilar configurated teeth, one of said teeth having an included angle less than the other of said teeth, one of said first and second teeth being complementary with the teeth of said ratchet, whereby to enable said cam element to be rotated in one direction but prevented from rotation in a direction opposite to said one direction.
A coupling according to claim 5, wherein said adjacent sides between said teeth form an angle of approximately 521/2.degree. therebetween, and said planes of said corresponding sides lying in said non-parallel planes forming an angle of about 10.degree. therebetween.
In a quick acting coupling for coupling together a pair of heavy pipes or hoses, having a clamp support, a bolt threadedly received within and coupled to the clamp support, the bolt having a shank portion, a rotable cam element rotatable about the bolt and held to the clamp support as a unit, and locking means to lock the cam element to the bolt;
- the improvement comprising releasable locking means to lock said cam element to said bolt to permit rotation in one direction and prevent rotation in an opposite direction to counteract external rotating forces;
- said releasable locking means including:
- a ratchet carried by said bolt;
- a guideway in said cam element opening towards said ratchet,
- a slide including an upstanding portion and a base portion in said guideway guided for movement towards and away from said ratchet.
- a compression spring urging said base portion into engagement with said ratchet,
- a cover plate covering said guideway including first and second legs, and
- said first leg abutting the other end of said compression spring, said second leg overlying said guideway and having a guide slot, said upstanding portion being coupled to said slide and extending externally of said guideway through said guide slot to provide an external means to disengage said base portion from said ratchet.
Dependencies are inferred from the claim text.