# US 2019/0168974 A1 · Storage method for resin using low profile receiver

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 2019/0168974 A1
- Document ID: US20190168974A1
- Status: Published application
- Kind: A1
- Application number: 16/266,418
- Filed: 2019-02-04
- Published: 2019-06-06
- Earliest claimed: 2016-01-05
- Inventors: Stephen B. Maguire
- Web page: https://patentgrep.com/patent/US20190168974A1

## CPC

- B65G 53/60: Devices for separating the materials from propellant gas
- B29B 7/60: for feeding, e.g. end guides for the incoming material {(B29B7/7615 takes precedence; feeding predetermined amounts for mixing in general B01F35/714)}
- B29B 13/10: by grinding, e.g. by triturating; by sieving; by filtering
- B65G 53/24: Gas suction systems
- B65G 53/34: Details
- B65G 53/40: Feeding or discharging devices
- B65G 53/46: Gates or sluices, e.g. rotary wheels
- B65G 2201/042: Granular material
- B65G: TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS (packaging B65B; handling thin or filamentary materials, e.g. paper sheets or thread, B65H; cranes B66C; portable mobile or lifting or hauling appliances, e.g. hoists, B66D; devices for lifting or lowering goods for loading or unloading purposes, e.g. fork-lift trucks, B66F9/00; emptying bottles, jars, casks, barrels or similar containers, not otherwise provided for, B67C9/00; delivering or transferring liquids B67D; filling or discharging vessels for liquefied, solidified or compressed gases F17C; pipe-line systems for fluids F17D)
- B29B: PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS

## Abstract

A method for temporary storage of granular material in a receiver having a horizontally elongated chamber within a housing, the chamber having a convex triangular cross-section and a dump flap defining a bottom vertex of the triangular cross-section, with a horizontal air/vacuum resin material inlet connecting to the chamber, and a horizontal air/vacuum outlet leading from and connected to the chamber.

## Claims

### Claim 1

A method for temporary storage of granular material prior to processing thereof into a finished or semi-finished product, comprising,
a) feeding an air/vacuum stream carrying the granular material into a chamber under vacuum;
b) reducing velocity of the stream in the chamber thereby causing granular material entrained in the stream to fall to the chamber bottom;
c) continuing drawing the stream from the chamber thereby maintaining vacuum in the chamber;
d) releasing the vacuum horizontally from the chamber thereby allowing a bottom of the chamber to swing to an open position, in response to granular material resting thereon.

### Claim 2 (depends on 1)

The method of claim 1 further comprising passing the stream through a filter after the granular material has fallen to the chamber bottom.

### Claim 3

A method for temporary storage of granular material prior to processing thereof into a finished or semi-finished product, comprising:
a) drawing a vacuum stream carrying granular material in a transport conduit to a chamber, the chamber having cross-sectional area larger than that of the conduit;
b) introducing the vacuum stream into the chamber thereby
i) causing speed of the vacuum stream to decrease and causing the carried granular material to drop to the bottom of the chamber; and
ii) closing the chamber bottom as the vacuum acts to provide force on a chamber movable bottom member;
c) maintaining the chamber bottom closed by continuing to draw vacuum in the chamber;
d) releasing vacuum from the chamber thereby allowing the movable bottom member to open in response to weight of granular material resting thereon thereby permitting gravity induced flow of granular material downward out of the chamber.

### Claim 4 (depends on 3)

The method of claim 3 further comprising passing the stream through a filter while vacuum continues to be drawn after the granular material has fallen to the chamber bottom.