Claims
- 1. A synthetic resin thin-walled bottle having a neck portion, a biaxially oriented body wall portion extending downwardly from the neck portion and a bottom wall portion connected to the lower extremity of said body wall portion through a body wall section which extends downwardly and inwardly to said bottom wall portion, the bottom wall portion of said bottle having an upwardly projecting rise having a conical lower portion and an annular basal portion connected to said section and said rise through a substantially planar annular interconnect area, said section having spaced on the circumferential periphery thereof a plurality of rounded bulges projecting outwardly from said section, each of said bulges having an underside surface positioned more outwardly than said annular interconnect area, the underside surface of said bulges being annularly arranged and forming an outer ground-contacting surface for said bottle, said interconnect area forming a displaceable inner ground-contacting surface between said basal portion and the outer ground-contacting surface, said inner ground-contacting surface being positioned at a higher level than the outer ground-contacting surface and provided with elasticity so that when the bottle is empty, said inner ground-contacting surface stays at a higher level than the outer ground-contacting surface, but when the bottle is full, said inner ground-contacting surface is pressed down to the same level as the outer ground-contacting surface.
Priority Claims (1)
Number |
Date |
Country |
Kind |
54-2805 |
Jan 1979 |
JPX |
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Parent Case Info
This is a division of application Ser. No. 101,172 filed Dec. 7, 1979, now U.S. Pat. No. 4,301,933.
US Referenced Citations (5)
Foreign Referenced Citations (9)
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Date |
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433464 |
Feb 1973 |
AUX |
460886 |
Apr 1975 |
AUX |
486047 |
Aug 1977 |
AUX |
1950569 |
Jul 1966 |
DEX |
544699 |
Jan 1974 |
CHX |
1360107 |
Jul 1974 |
GBX |
1406958 |
Sep 1975 |
GBX |
1454780 |
Nov 1976 |
GBX |
1528512 |
Oct 1978 |
GBX |
Divisions (1)
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Number |
Date |
Country |
Parent |
101172 |
Dec 1979 |
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