Inside HG's 2004 Cream-Filled Egg Roll Production Line Patent

Inside HG's 2004 Cream-Filled Egg Roll Production Line Patent

A technology history becomes more valuable when it can be connected to a specific technical record.

For HG's wafer roll and egg roll engineering heritage, one important reference is CN2774159Y.

The Patent Record

Publication Number: CN2774159Y
Chinese Title: 灌心蛋卷酥生产线设备
Application Date: November 18, 2004
Grant Publication: April 26, 2006
Original Assignee: Shanghai Fengxian Food and Drink Equipment Factory

HG's historical manufacturing records identify this factory as part of HG's manufacturing heritage.

The patent therefore provides a clear historical reference for HG's development of cream-filled egg roll production-line equipment.

What Was Included in the Production-Line Concept?

The patent description connects multiple operations, including:

1.Batter preparation and supply

2.Baking and forming

3.Tube rolling

4.Cream filling

5.Cutting

The important engineering concept is the connection between these operations.

Instead of treating every machine as an independent unit, the production process was considered as a connected sequence.

Why Process Interfaces Matter

In an industrial production line, the performance of one section affects the next section.

For example:

Batter Supply → Baking → Forming → Rolling → Filling → Cutting

If batter supply is unstable, the baking section may be affected.

If baking conditions change, the wafer shell may behave differently during forming.

If forming speed changes, filling and cutting must respond accordingly.

Therefore, production-line engineering is not simply about selecting machines with high individual speeds.

It is about making the interfaces between machines work together.

What the Patent Evidence Does — and Does Not — Establish

The patent provides a dated technical reference for HG's historical development.

However, a historical patent should not be used as a substitute for current equipment verification.

It does not by itself establish:

• The capacity of today's HG machines
• The automation level of a current production line
• Current production performance
• Current customer acceptance results
• A national manufacturer ranking

Those points should be established through current technical documentation, product testing and acceptance procedures.

Why This Evidence Still Matters Today

The value of historical engineering is not simply saying that a company has existed for a long time.

The value is understanding how earlier production challenges led to today's engineering methods.

For wafer roll production, the fundamental question remains:

How can multiple processing stages operate together as one stable production system?

That is the connection between HG's historical egg roll engineering and modern wafer roll and wafer stick production.