Metal working – Means to assemble or disassemble – Puller or pusher means – contained force multiplying operator
Patent
1993-03-24
1994-11-22
Echols, P. W.
Metal working
Means to assemble or disassemble
Puller or pusher means, contained force multiplying operator
267 47, B23P 1300
Patent
active
053656466
ABSTRACT:
A compact suspension system for a wheeled vehicle and method for its manufacture. The suspension includes a tapered, vertically mounted elongated arm having an integral eye at one end. The integral eye rotatably connects the elongated arm to the vehicle while the other end connects to an air spring attached to the vehicle. The axle connects to the arm near the air spring. The arm is tapered between the axle and the integral eye so that the amount of arm material, and thus weight, is reduced. A second arm is placed adjacent to, and parallel with, the first arm to back up the first arm if the first arm fails, or vice versa. A shock absorber is mounted near the axle on the opposite side of the axle as the air spring. The method of manufacture includes plasma cutting a blank elongated arm from spring steel, heat-treating the arm, machining to final form, and then shot peening the arm.
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patent: 1650941 (1927-11-01), Hopkins
patent: 1734008 (1929-10-01), Frehse
patent: 2608752 (1952-09-01), Schilling
patent: 3238072 (1966-03-01), Greene et al.
patent: 3441999 (1969-05-01), Perdue et al.
patent: 3516874 (1970-06-01), Maker et al.
patent: 3671030 (1972-06-01), Marion
patent: 4054278 (1977-10-01), Bilobran
Echols P. W.
Paccar Inc.
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