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US 4,396,214 AGranted
Spade
OwnerWalter Lescheinventor
Life of this patent
Estimating the term…
Abstract
A spade with a replacable blade with a tapered neck-socket connection with a spring pin lock. Footrest steps pitched downwardly on the blade to avoid the leg touching the tubular handle and an oversized two-handed tubular D-handle are provided.
Claims10
A spade comprising:
- (a) a grip handle with a hand grip on the top side
- (b) a handle body rigidly and structurally attached and extending from the grip handle,
- wherein the free end of the handle body terminates in a socket,
- (c) a spade blade,
- (d) a substantially straight tubular neck rigidly and structurally attached at an angle to the front face of the blade,
- wherein the free end of the neck is tapered and matched to friction fit into the socket,
- (e) a pair of off-set holes, one passing through both sides of the socket and the other hole passing through both sides of the tapered portion of the neck, and
- (f) a locking pin means inserted into the pairs of holes to lock the neck into the socket,
- wherein the off-set between the holes is sufficient to pull the tapered neck into the socket when the pin means is inserted through the pair of holes.
6 more elements
A space comprising:
- (a) a tubular "D" shaped grip handle with a hand grip on the straight side,
- wherein straight tubular sections extend at right angles from the hand grip connecting into the curved portion of the grip handle,
- (b) a tubular handle body rigidly and structurally attached and extending from the middle of the curved portion of the grip handle,
- wherein the free end of the tubular handle terminates in a tubular socket,
- (c) a spade blade,
- (d) foot rest steps on the top edge of the blade, one on each side, pitched downwardly toward the outside of the edge of the top of the spade blade, the pitch being sufficient to avoid the inside of the users knee from touching the tubular handle when the foot is pressed on the step,
- (e) a substantially straight tubular neck rigidly and structurally attached at an angle to the front face of the blade,
- wherein the free end of the neck is tapered and matched to friction fit into the socket,
- (f) a pair of off-set holes, one passing through both sides of the socket and the otherhole passing through both sides of the tapered portion of the neck, and
- (g) a locking spring pin means that exerts a bias pressure against the opposite edges of the off-set holes,
- wherein the off-set between the holes is sufficient to have the bias pressure pull the tapered neck into the socket when the spring pin means is inserted through the pair of holes.
8 more elements
Dependencies are inferred from the claim text.