Distributor for pasty products and a method of introducing the piston into the interior of the tubular body
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B65D-037/00
B65B-007/28
출원번호
US-0116207
(1987-11-03)
우선권정보
FR-0015443 (1986-11-03)
발명자
/ 주소
Jupin Alain (Sainte Menehould FRX) Schneider Bernard (Sainte Menehould FRX)
출원인 / 주소
Cebal (Clichy FRX 03)
인용정보
피인용 횟수 :
6인용 특허 :
6
초록▼
A distributor for pasty products comprises a body having a tubular body (4) with a cylindrical barrel (5), a piston (7) with a flexible flared-out top lip (8) sliding in the barrel (5) and a top carrying an orifice through which the pasty product can pass, and also having a distribution head fixed o
A distributor for pasty products comprises a body having a tubular body (4) with a cylindrical barrel (5), a piston (7) with a flexible flared-out top lip (8) sliding in the barrel (5) and a top carrying an orifice through which the pasty product can pass, and also having a distribution head fixed on the tip. Pasty product is directed and expelled by a suction and compression effect. According to the invention, in order to allow air to be evacuated when the piston is being inserted into the tubular body (4), this body (4) comprises a transverse inner relief (35) having a minimal inside diameter which is 0.5 to 1.5 mm less than the inside diameter of the barrel (5) and, preceding it, a flared-out inlet zone (36) having an engagement diameter at least equal to the outside diameter of the flexible lip (8), the outside diameter of the middle part (40) of the piston (7) being at least 0.4 mm smaller than the minimal inside diameter of the relief (35).
대표청구항▼
Distributor for pasty products, comprising: (a) a body (3) comprising a tubular body (4), a piston (7) sliding in fluidtight fashion in the inside of a circular cylindrical barrel (5) of the tubular body (4), said piston comprising a flexible flared-out top lip (8) sliding within the barrel (5) to e
Distributor for pasty products, comprising: (a) a body (3) comprising a tubular body (4), a piston (7) sliding in fluidtight fashion in the inside of a circular cylindrical barrel (5) of the tubular body (4), said piston comprising a flexible flared-out top lip (8) sliding within the barrel (5) to ensure fluidtightness, a rigid middle portion (40) which is retracted in relation to the inner surface of the said cylindrical barrel (5) and a semi-rigid flared-out bottom end (41) sliding with a slight clearance or with a slightly forced fit inside said barrel (5), and said body also comprising a top (9) carrying at least one orifice (341) through which the pasty product can pass to a distributor head (b); and (b) a distributor head (2) fixed on said top (9) of said body (3) and comprising with the top (9) means (10 and 12, 26, 28 and 31) for directing the pasty product from within the tubular body (4) to a distribution duct (23) in said head (2), by movements providing successive extraction and compression of the pasty product so that said pasty product is expelled towards said duct (23); the tubular body (4) comprising air leakage means (35, 342) which do not allow the pasty product to pass, the means leaking air from the tubular body (4) when the piston (7) is inserted into the body (4) and until it comes in contact with the pasty product contained therein and comprising an interior relief (35, 350) transverse to the axis of the cylindrical barrel (5, 50) and situated at the bottom of the said barrel (5, 50) and of minimal inside diameter, 0.3 to 1.5 mm smaller than the inside diameter of said barrel (5, 50) and also a flared-out inlet zone (36, 360) before this relief (35, 350) which has an inside diameter decreasing from an engaging diameter at least equal to the outside diameter of the flexible lip (8) of the piston (7) in its free state, to said minimal diameter of said relief (35, 350), the outside diameter of the middle part (40) of the piston (7) being at least 0.4 mm smaller than said minimal inside diameter of said relief (35, 350).
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이 특허에 인용된 특허 (6)
Duncan Gail F. (Dayton OH) Browning Emerson F. (Dayton OH) Rotterman Karl (Dayton OH), Caulking tube plunger and enclosure assembly.
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