Surge brake control

Claim 2

In a brake control device for attachment between a towed vehicle having braking means and a towing unit: a pair of elongated, coaxial, relatively movable members; one of said members being adapted to be secured to said towed vehicle; the other of said members being adapted for connection to the towing unit; cooperative abutment means on each of said members; resilient means yieldably urging the abutment means on said other member toward the abutment means on the one member; brake-applying means carried on one end of said one member; said brake-applying means being connected to said other member at a point along the axis of the latter for operating said brake-applying means to apply said braking means upon relative movement between the members; said one member having a tubular portion; said other member having a tubular portion slidably engaged with the tubular portion of said one member and a rodlike portion extending through said tubular portion to said brake-applying means; the tubular portion of said other member slidably engaging the tubular portion of said one member; said cooperative abutment means being carried on the tubular portions of the respective members.

Claim 3

The invention of claim 1: said brake-applying means being a fluid motor.

Claim 4

The invention of claim 1: said brake-applying means being a lever mounted for pivoting movement with respect to said one member.

Claim 5

In a brake control device for attachment between a towed vehicle having braking means and a towing unit; a pair of elongated coaxial, relatively movable members; one of said members being adapted to be secured to said towed vehicle; the other of said members being adapted for connection to the towing unit; cooperative abutment means on each of said members; resilient means yieldably urging the abutment means on said other member Toward the abutment means on the one member; brake-applying means carried on one end of said one member; said brake-applying means being connected to said other member at a point along the axis of the latter for operating said brake-applying means to apply said braking means upon relative movement between the members; said one member having a tubular portion; said other member having a tubular portion slidably engaged with the tubular portion of said one member and a rodlike portion extending through said tubular portion to said brake-applying means; and a pin carried by said one member extending through the latter at substantially right angles to the longitudinal axis of said one member; said rodlike portion having a longitudinally extending slot therein; said pin extending through said slot; said resilient means being operatively connected to said pin to yieldably urge the latter into engagement with one end of said slot.

Claim 6

In a brake control device for attachment between a towed vehicle having braking means and a towing unit; a pair of elongated coaxial, relatively movable members; one of said members being adapted to be secured to said towed vehicle; the other of said members being adapted for connection to the towing unit; cooperative abutment means on each of said members; resilient means yieldably urging the abutment means on said other member Toward the abutment means on the one member; brake-applying means carried on one end of said one member; said brake-applying means being connected to said other member at a point along the axis of the latter for operating said brake-applying means to apply said braking means upon relative movement between the members; said one member having a tubular portion; said other member having a tubular portion slidably engaged with the tubular portion of said one member and a rodlike portion extending through said tubular portion to said brake-applying means; and a pin carried by said one member extending through the latter at substantially right angles to the longitudinal axis of said one member; said rodlike portion having a longitudinally extending slot therein; said pin extending through said slot; said resilient means being operatively connected to said pin to yieldably urge the latter into engagement with one end of said slot.

Claim 7

The invention of claim 4; and releasable means carried by said housing; said pin being rigidly connected to said releasable means; said resilient means urging said pin away from said abutment means upon release of the releasable means whereby said resilient means drives a section of said other member toward said brake-applying means to operate the latter.

Claim 8

The invention of claim 5: said releasable means including a lever pivotally carried by said housing and a latching device engaging said lever to hold said pin in a position permitting relative movement between the members to apply said brake means; said resilient means driving said lever away from said latching device upon release of the latter.