Patent ID: 7690630

Claim:
A long travel, high force combination spring comprising: a first spring assembly having: a first spring; a first headed pin disposed within the first spring; a first end flange member slidably disposed around the first headed pin and having a boss projecting within the first spring at a first end of the first spring forming a plunger to compress the first spring, the head of the first headed pin positioned to stop the removal of the first end flange member from the spring; a second assembly arranged coaxially with the first spring assembly, the second spring assembly having: a second spring; a second headed pin disposed within the second spring; a second end flange member slidably disposed around the second headed pin and having a boss projecting within the second spring at a first end of the second spring forming a plunger to compress the second spring, the head of the second headed pin positioned to stop to the removal of the second end flange member from the spring; an intermediate flange member having a first end and a second end opposite to the intermediate flange member first end, the intermediate flange member disposed between the first spring assembly and the second spring assembly such that the intermediate flange member first end is engaged with a second end of the first spring and the intermediate flange member second end is engaged with a second end of the second spring; the intermediate flange member having a first intermediate flange part and a second intermediate flange part, removably connected to one another, the first intermediate flange part secured to the first headed pin and the second intermediate flange part secured to the second headed pin; the first spring assembly having the first intermediate flange part disposed opposed to the first end flange member, with the first intermediate flange part projecting within the first spring; and the second spring assembly having the second intermediate flange part disposed opposed to the second end flange member, the second intermediate flange part projecting within the second spring.