Weight-lifting apparatus and method of assembling same
OwnerPhilip Pattiinventor
Life of this patent
Estimating the term…
Abstract
A fixed weight/permanent weight-lifting apparatus including dumbbells and barbells is provided that have an elongated shaft with a centrally located handle and ends having a smaller diameter than the handle, a pre-coated head welded to each of these ends with a centrally located channel connecting its inner face and its outer face and a counter bore machined into its outer face of the head forming an inner collar. The channel has a diameter sufficient to receive the portion of the end of said shaft that extends beyond the inner collar. Each of the inner collars are joined to that portion of the end that extends beyond the collar.
Claims19
Weight-lifting apparatus comprising:
- a) an elongated shaft including a centrally located handle and ends having a smaller diameter than the handle;
- b) a pre-coated head welded to each end of said shaft and having a centrally located channel extending from its inner face towards its outer face and a counter bore machined into its outer face forming a groove and an inner collar between the channel and the groove and protruding away from the head, the channel has a diameter sufficient to receive the end of said shaft that extends beyond the inner collar;
- and
- c) a welded joint around each circumference of the inner collars and each of the portions of the end that extends beyond the collar.
A method of assembling weight-lifting apparatus comprising the steps of:
- a) providing:
- i) an elongated shaft including a centrally located handle and ends having a smaller diameter than said shaft, and
- ii) a pre-coated head welded to each end of said shaft and having a centrally located channel extending from its inner face towards its outer face and a counter bore machined into its outer face forming a groove and an inner collar between the channel and the groove and protruding away from the head, the channel has a diameter sufficient to receive the end of said shaft that extends beyond the inner collar;
- b) pressing each of said heads onto the end of said shaft so that a portion of the end of said shaft extends from the inner face of said head to beyond the inner collar;
- and
- c) welding a joint to join each circumference of the inner collars with each of the portions of the ends of said shaft extending beyond the inner collar.
Dependencies are inferred from the claim text.