发明名称 |
Accumulative pressure pump |
摘要 |
A finger-operated spray pump assembly including a compression chamber, a primary piston and a secondary piston slidably fitted inside the compression chamber, a spring fitted inside the secondary piston for urging the secondary piston toward the primary piston, and a valve slidably connected to the secondary piston.
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申请公布号 |
US4089442(A) |
申请公布日期 |
1978.05.16 |
申请号 |
US19760728212 |
申请日期 |
1976.09.30 |
申请人 |
ETHYL CORPORATION |
发明人 |
HAFELE, ROBERT X.;LOMAGLIO, LEWIS C. |
分类号 |
B05B11/00;F04B3/00;(IPC1-7):G01F11/06 |
主分类号 |
B05B11/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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