David Monroe Trowbridge

US Patent:

20120056406, Mar 8, 2012

Filed:

Sep 2, 2010

Appl. No.:

12/874923

Inventors:

David Lee Trowbridge - Wilton CA, US
Douglas Glen Murray - Lodi CA, US

International Classification:

B62D 53/06

US Classification:

2804412

Abstract:

Trailer with a detachable gooseneck having a deck supported toward the rear by ground engaging wheels, mating surfaces on the gooseneck and the deck which abut against each other when the gooseneck is attached to the deck, coupling pins extending along spaced apart, parallel axes from the gooseneck and the deck on opposite sides of the abutting surfaces, a coupling link movable along the pin on the gooseneck between a first position in which the link engages the pin on the deck and a second position in which the link is disengaged from the pin on the deck, and an actuator for moving the coupling link between the first and second positions. A latch hook is rotatively mounted on the deck to the rear of the abutting surfaces for engagement with a laterally extending latch bar which depends from the gooseneck, and a pneumatic actuator is operatively connected to the latch hook for moving the latch hook into and out of engagement with the latch bar.

US Patent:

20120056407, Mar 8, 2012

Filed:

Sep 2, 2010

Appl. No.:

12/874937

Inventors:

David Lee Trowbridge - Wilton CA, US
Douglas Glen Murray - Lodi CA, US

International Classification:

B62D 53/06

US Classification:

2804412

Abstract:

Gooseneck trailer having a horizontally extending deck with a plurality of longitudinally extending frame members including outer side rails which extend along opposite sides of the deck, lower gooseneck beams rigidly connected the outer deck rails by couplings that can be selectively engaged and disengaged, elongated upper gooseneck beams pivotally connected to the lower beams, with one end of each of the upper beams being pivotally connected to a pulling vehicle, operating cylinders connected between the upper and lower beams for raising and lowering the lower beams and the trailer deck when the upper beams are connected to the pulling vehicle, and latches for locking the upper and lower beams in different positions relative to each other. Each of the latches has first and second elongated ratchet blocks disposed side-by-side with mating teeth along confronting edges of the two blocks and upper and lower ends of the blocks being pivotally connected to respective ones of the beams for movement longitudinally with the beams and laterally toward and away from each other, and actuators for pivoting the blocks to bring the teeth on the two blocks into and out of engagement with each other to lock the beams in the different positions.