US 4,711,334 AGranted

Telescopic chute for mixer discharge

OwnerJoseph A. Barry, Leo J. Barryinventors

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Abstract

A telescoping extension chute has a first semicircular section with an inlet end for pivotal connection to a main chute on a mixer truck and a pair of tubular tracks attached along upper longitudinal edges. An intermediate section with a semicircular cross-section of larger radius telescopes over the first section and has a pair of tubular tracks attached along upper longitudinal edges which extend through slots formed in the bottom walls of the first section tracks. A third section with a semicircular cross-section of still larger radius telescopes over the intermediate section and has a pair of bars attached along upper longitudinal edges which extend through slots formed in the bottom walls of the intermediate section tracks. Rollers attached to the tracks cooperate to provide relative telescoping movement and a locking mechanism prevents relative movement in any extended position.

Claims26

Dependent claims

An extension chute assembly for discharging material from a storage container comprising:

a first chute section having a body of generally semicircular cross-section with a pair of generally parallel upstanding longitudinal edges extending between an inlet end and an outlet end;
first track means having a pair of generally tubular bodies, each of said tubular bodies attached to and extending along an associated one of said upstanding edges and having a downwardly facing, longitudinally extending slot formed therein;
a second chute section having a body of generally semicircular cross-section of a larger radius than said first chute section with a pair of generally parallel upstanding longitudinal edges extending between an inlet end and an outlet end;
and
second track means attached to and extending along an associated one of said upstanding edges of said second chute section, said second chute section upstanding edges each extending through an associated one of said first track means slots to position said second track means inside said first track means tubular bodies, said first track means including at least one roller assembly having an arm with one end attached to said first track means at said outlet end of said first chute section and a roller rotatably attached to an opposite end of said arm, said roller engaging a downwardly facing surface on said second track means, wherein said first and second track means cooperate for relative longitudinal movement between said first and second chute sections.

2 more elements

A telescopic chute for discharging material from a mixer having a main chute comprising:

a first chute section having an inlet end and an outlet end with means for pivotally coupled said inlet end to an outlet end of a main chute, and first track means including a pair of generally tubular bodies attached to and extending longitudinally on opposite sides of said section, each of said bodies having a downwardly facing, longitudinally extending slot formed therein;
a second chute section telescoping over said first chute section and having a second track means including a pair of generally tubular bodies attached to and extending longitudinally on opposite sides of said second section, each of said second track means bodies being received in an associated one of said first track means bodies and having a downwardly facing, longitudinally extending slot formed therein;
wherein said first chute section has a roller assembly attached to each of said first track means tubular bodies at said outlet end, each said roller assembly including an arm having one end attached to an outer suface of an associated one of said first track means tubular bodies and a roller rotatably attached to an opposite end of said arm and engaging a downwardly facing surface of an associated one of said second track means tubular bodies;
and
a third chute section telescoping over said first chute section and having a third track means including a pair of bars attached to and extending longitudinally on opposite sides of said third section, each of said third track means bars being received in an associated one of said second track means tubular bodies.

2 more elements

A telescopic extension chute assembly for a material mixer comprising:

a first chute section having a body of generally semicircularly cross-section with an inlet end including means for coupling to a material mixer discharge opening;
first track means including a pair of tubular bodies of generally rectangular cross-section, each of said tubular bodies being attached to and extending along an associated upper edge of said first chute section body, each of said tubular bodies having a longitudinally extending slot formed in a bottom wall thereof;
a second chute section having a body of generally semicircular cross-section of a larger radius than said first section and a pair of upper edges extending through associated ones of said slots in said first track means;
a second track means including a pair of tubular bodies of generally rectangular cross-section, each of said second track means tubular bodies being attached to and exending along an associated one of said upper edges of said second chute section body and having a longitudinally extending slot formed in a bottom wall thereof;
wherein said first track means includes a pair of rollers rotatably attached at an end opposite said inlet end and engaging a downwardly facing outer surface of said bottom all of said second track means bodies;
a third chute section having a body of generally semicircular cross-section of a larger radius than said second section and a pair of upper edges extending through associated ones of said slots in said second track means;
and
a third track means including a pair of bars of generally rectangular cross-section, each attached to and extending along an associated one of said upper edges of said third cute section body whereby said second chute telescopes over said first chute and said third chute telesocpes over said second chute and said first, second and third track means cooperate to enable relative longitudinal movement among said first, second and third chutes.

5 more elements

Dependencies are inferred from the claim text.