US3381608A

US3381608A - Juice-squeezers for oranges and similar fruits

Info

Publication number: US3381608A
Application number: US511181A
Authority: US
Inventors: Bengtsson Sigurd Walter
Original assignee: Individual
Current assignee: Individual
Priority date: 1964-12-10
Filing date: 1965-12-02
Publication date: 1968-05-07
Anticipated expiration: 1985-05-07
Also published as: NO115118B; NL6515909A; ES320509A1; DE1260715B; CH429053A; FI41190B; GB1113688A; BE673499A; AT257865B; FI41190C

Description

y 7, 1968 s. w. BENGTSSON 3,381,608

JUICE-SQUEEZERS FOR ORANGFS AND SIMILAR FRUITS 4 Sheets-Sheet 1 Filed Dec. ti, 1965 FIG. 1

FIG. 2

l N V E N T O R S/gam Wa/fer fienyzis'afl ATTYS.

y 968 s. w. BENGTSSON 3,381,608

JUICE-SQUEEZERS FOR ORANGES AND SIMILAR FRUITS Filed Dec. 1, 1965 4 Sheets-Sheet 2 l N V E N T O R 18 S/yamV/afler 459/2; 7829017 BY MQJV ATTYS.

s. w. BENGTSSON 3,381,608 I JUICE-SQUEEZERS FOR CHANGES AND SIMILAR FRUITS 4 Sheets-Sheet 3 May 7, 1968 Filed Dec. '51, 1965 I 16 vm vm I l INVENTOR wh/ T y 1968 s. w. BENGTSSON 3,381,608

JUICE-SQUEEZERS FOR ORANGES AND SIMILAR FRUITS Filed Dec. :2, 1965 4 SheetsSheet 4 2 2/22 F|G.9 2o /12 12 v zo INVENTOR BY fl/MM/ w ATTYS.

United States Patent 3,381,608 JUlCE-SQUEEZERS FOR ORANGES AND SIMILAR FRUKTS Sigurd Waiter Bengtsson, Rallgatau 6, Goteborg, Sweden Filed Dec. 2, 1965, Ser. No. 511,181 Claims priority, application Sweden, Dec. 10, 1964, 14,909/64 8 Claims. (Cl. 100-108) ABSTRACT OF THE DISCLOSURE A group of flexible molded knife blades are rigidly supported at one end by a receptacle, the other end of each blade being sharp along its periphery, the blades being arranged to jointly define a hollow cylindrical space having seed-retaining slots between the blades, each blades free end being resiliently deflectable radially inwardly and returnable to a normal position.

The present invention relates to juice-squeezers for oranges and similar fruits and more particularly to such squeezers as comprise a receptacle and a number of knife members projecting from the inside of the receptacle and arranged about a common centre line with slots between each other, the longitudinal extension of said knife-members between their lower and upper ends in the position of rest being substantially parallel with said centre line, the lower ends of said knife-members being rigidly connected to the receptacle and the free upper ends of the knife-members being designed to be inserted in the fruit, preferably in concentric relation to the axis of the fruit. In a prior appliance of this kind the knife-members comprise pins projecting upwards from the bottom of a cup or bowl and arranged along one or two concentric rings in relation to a common centre line. Each of said pins has several (six) edges extending radially from the pin, and when inserted into the orange or a similar fruit said edges are not adapted to cut out a disc with well-defined edge in the peel of the fruit when the fruit and the pins are rotated relatively to each other about said centre line. Said pins are rigid and not adaped to be bent towards the centre line by the squeezing of the orange for the purpose of driving out the juice. As far as is known by me this prior appliance has not found any extensive use.

The present invention is characterized substantially by the fact that the knife-members comprise resiliently flexible blades, the broadsides of which in the position of rest of the blades are substantially concentric to said centre 0 line, and that the blades are adapted when inserted into the fruit by rotation of the fruit relative to the blades to cut out a disc-shaped portion in the peel of the fruit and a central body of the pulp of the fruit about said center line, and that the upper portions of said blades are adapted when a pressure is exerted by the users hand against the outside of the fruit to be moved inwards towards the centre line against the spring action of the blades and on interruption of said pressure by said spring action to be moved back to the position substantially parallel with said centre line so that the juice of the fruit is driven out through said slots past the edge of said disc-shaped peelportion into the receptacle. By said movements of the blades operated by one hand of the user, there is exerted a kind of pump-action and which drives the juice through said slots and past the edge of the peel-disc out into the receptacle. Said blades are at least two in number and have substantially greater width than the width of the slots in the position of rest of the blades. Preferably said axis, about which the blades are arranged in substantially concentric relation, inclines in an oblique angle to the horizontal plane.

Further characteristic features and advantages of the invention will appear from the following description with reference to the accompanying drawings showing as examples some embodiments of the invention. FIG. 1 is a side-view and FIG. 2 is a cross-sectional view of the squeezer according to one embodiment, the knife-device in FIG. 2 being shown in section on the line H--II of FIG. 1. FIGS. 3, 4 and 5 are a side view, a plan view and an end view respectively of a second embodiment of the squeezer. FIGS. 6 and 7 are a side view and a plan view respectively of the squeezer according to a third embodiment. FIG. 8 is a cross-sectional view taken on the line VIII--VIII of FIG. 7. FIG. 9 is an axial section of the knife-device and its attachment to the bottom of the receptable, and FIG. 10 is a plan view of the device according to FIG. 9.

In the embodiment shown in FIGS. 1 and 2, the base of the knife-device, indicated generally by A, is formed by a cup or receptacle 10 in the shape of a segment of a sphere the bottom of which has a centrally located outflow-pipe 11. Around the inlet end of this pipe the knifedevice A projects upwards from the bottom of the receptacle. This knife-device comprises a number of knifemembers in the form of blades 12 provided about a centre or axis line XX common to the receptacle 10' and the pipe 11, the longitudinal directions of said blades being substantially parallel with said line. The blades in the example shown are four in number. The broadsides of these blades are located substantially concentrically in relation to the centre line XX, and their lower ends are rigidly attached to the bottom of the receptacle and preferably formed integrally therewith and are of such a material that they are flexible in radial direction and their upper end portions are apt to be moved towards the line XX by a pressure on their outer faces and when relieved from the pressure by their resiliency reassume the position shown in the drawings. Between adjacent longitudinal edges of the blades there are slots 13 tapering towards the bottom of the receptacle because of which the blades taper towards their free ends 14. Since the blades 12 are designed to cut in rather soft and loose material they do not require any high degree of sharpness but they are preferably sharpened at their free ends 14 and at their longitudinal edges .15.

In the use of the squeezer the orange, for example, is placed on the outer edges 14 of the blades so that these edges are positioned substantially in concentric relation to the axis of the fruit. The fruit is then forced down towards the bottom of the receptacle (as shown by a dotand-dashed circle 19 in FIG. 1) in which movement the fruit is squeezed by the users hand and at the same time rotated about the axis XX so that the blades 12 will cut out a small round disc in the lower portion of the orange-peel and at the free ends 14 of the blades are finally positioned a small distance below the upper portion of the peel. Said disc of the peel by the rotation and squeezing of the orange in relation to the knife-device A will be moved a short distance from the lower end of the orange into the latter. By the rotation and squeezing of the orange by. the users hand the tongues or blades 12 are repeatedly and periodically benttowards each other and by their resiliency from each other to the position according to FIG. 1. By these movements the fibres of the pulp of the orange are partially cut in pieces and the juice is caused to flow downwards past the edge of the peel-disc cut out of the lower portion of the peel. The pips (seeds) of the fruit will be largely positioned and trapped in the rotation body or core cut out by the blades 12 in the centre of the fruit, and the juice of said body is squeezed out through the slots 13 past said peel-disc while at least most of the pips by their size are prevented from escaping through the slots. The peeled-disc cut out at the beginning of the squeezing operation also prevent pips and pulp to escape through the lower part of the orange. Thus, the juice squeezed out in most cases will be free from pips and pulp.

During the squeezing operation the cup or receptacle 10 in this embodiment is designed to be placed over a drinking-glass or a bottle, for example, to which the juice is conducted through the pipe 11.

The new orange-squeezer has the following advantages as compared with well known appliances now in common use:

(1) There is no use of a knife for cutting the orange in two halves.

(2) The juice is squeezed out of an orange during about the same time as is required for half an orange in the use of the ordinary squeezer.

(3) The juice obtained is much cleaner.

(4) A lesser quantity of the juice will be lost.

(5) The appliance is easily cleaned since no difiicultly accessible straining devices have to be cleaned.

The construction of the squeezer may diverge as to details from the embodiment described with reference to FIGS. 1 and 2 while the essential features of the invention are maintained. Thus the embodiment according to FIGS. 3 to 5 inclusive is based on the same main principle. The arrangement of the knife members A is here the same as above described with the difference that the centre or axis line XX of the knife-device is not vertical but inclines in an angle of about 45 to 60 degrees to the horizontal plane and also the receptacle to which the knife-device is connected has another shape. This receptacle has an oval shape and an entirely closed bottom and is formed with a pour off end 16 for the juice and a handle 17 at the opposite end. The bowl or receptacle is formed with a base plate 18. The manner of operation of this embodiment is substantially the same as that of the first embodiment.

A further embodiment of the invention is shown by FIGS. 6 to 10 inclusive in which the bottom of the receptacle is formed with a hollow attachment or projection 19 for the knife members A, said attachment or projection having an open lower end, a cylindrical lower portion and a tapering upper portion. The common axis or centre line XX of this projection 19 and the knife-device A inclines about 60 degrees in relation to the horizontal plane. The outer and inner faces of the knife blades 12 are substantially parallel with the line XX, and the outer ends forming the end edges 14 are substantially thinner than the remaining portions of the blades. The blades 12 in the non-operating or rest position shown in the drawings have their broadsides located substantially along a cylindrical surface concentric to the line XX. Their outer sides are formed with one or several longitudinal ribs 20 having a curved cross-section and extending from the attachment 19 towards the end edges 14 leaving these edges free. When several ribs are provided on the outside of each blade longitudinal grooves 21 are formed between adjacent ribs. On the inside of each blade at low longitudinal ridge 22 is formed from which ridge the blade is thinned off to both sides forming the longitudinal edges 15. The ridges 22 run out to transverse offsets limiting on the inside of the blades the thinner end-edge portions 14.

Owing to the fact that the attachment 19 for the blades 12 projects upwards to a point substantially level with the adjacent side edge portions 24 of the receptacle 10, the fruit pushed on the knife-device A will not come in contact with these edges and also not with the juice in the receptacle 10. The insertion of the knife-device into the fruit and the cut of the disc out of the peel of the fruit will be facilitated by the thin end portions 14 of the blades limited by the offsets 25 which serve as temporary stops for the blades prior to the rotation of the fruit relative to the knife-device.

This embodiment of the squeezer is used in a similar manner as the embodiments first described. The fruit is rotated by the users hand exerting simultaneous pressure about the knife-device A. The ribs 20 on the outer side of the blades 12 Will force the juice out of the fruit without cutting the pulp of the fruit in pieces so that great quantities of fragments of the pulp are not released by this treatment. The juice flows out especially through the slots 13 between the blades and in the grooves 21 between the ribs 20 into the receptacle 10. Also in the operation of this embodiment the free ends of the blades 12 by the hand treatment of the fruit will be alternatingly forced towards and by the resiliency of the blades from the line XX to the rest position shown in the drawing. In this operation the blades will perform a kind of pump action driving the juice out of the orange. If any solid parts such as pips follow the juice into the receptacle 10 they will be stopped by a coarse strainer below the pouroff end 16 of the receptacle said strainer comprising, for example, a set of teeth 26 or the like projecting with intermediate spaces from the bottom of the receptacle.

In the rear portion of the base 18 of the receptacle a hole 27 or other means may be provided for securing a handle to the receptacle, if desired.

Since the blades 12 for their function do not require edges with great sharpness they, as the squeezer in its entirety, in all embodiments may be made from suitable plastic and moulded in one piece. Also other material such as stainless steel may be used. If desired, the knife-device A may be made as a particular detail and be removably attached to the base of the receptacle, but preferably the whole appliance is made in one piece. The number of the blades 12 may vary and be more or fewer than four. At least two blades are, however, required.

The squeezer is also intended to be used for driving out of the juice from other fruits than oranges, such as lemons, grapefruits and citrus fruits in general which are rich in juice.

I claim:

1. A juice-squeezer for citrus fruit comprising: a receptacle having a generally bowl-shaped interior; and a plurality of resiliently flexible knife blades each rigidly connected at one end to the interior of the receptacle, and each having a free end projecting from the interior of said receptacle, said blades being arranged about a common center line with slots between each other, said blades having elongated outer sides which normally jointly define a cylindrical surface concentric with said center line and inner elongated sides which jointly define an empty cavity receptive of a cylindrical core of fruit peel and pulp, each of the free ends having sharp edges extending into said slots for cutting the cylindrical core of peel and pulp from a fruit, and each of the free ends being resiliently defiectable radially inwardly to a position intermediate the adjacent free ends and against such core of fruit in response to manual squeezing on any fruit into which said blades project, whereby juice passes through said slots into said receptacle.

2. A squeezer as claimed in claim 1, wherein each of said blades has a substantially greater width throughout its length than the width of said slots with said blades disposed in their normal position of rest.

3. A squeezer as claimed in claim 1, wherein said center line about which said blades are arranged inclines in an oblique angle to a support surface on the outside of said receptacle.

4. A squeezer as claimed in claim 1, wherein the outer sides of said blades respectively have at least one longitudinal rib projecting radially outward-1y from said blades.

5. A squeezer as claimed in claim 4, wherein said ribs have shorter length than said blades and terminate short of the end-edges of the free ends of said blades.

6. A squeezer as claimed in claim 5, wherein the inner sides of said blades have transverse offsets spaced from References Cited said end edges.

7. A squeezer as claimed in claim 1, wherein said recep- UNITED STATES PATENTS tacle has a projection extending from the interior of its 1,432,166 10/ 1922 During 100- 108 bowl-shape to a point disposed generally centrally of the 5 1 990 949 2/ 193 5 Maul} 100 108 rim of the bowl-shape, said blades being rigidly connected 2,649,731 8/1953 k et all 100 108 X by said projection to the interior of said receptacle. 2 807 205 9/1957 Gilman 10O 103 8. A squeezer as claimed in claim 1, wherein the interior of said receptacle has a strainer comprising sta- FOREIGN PATENTS tionary teeth projecting from the interior of said receptacle and arranged with mutual interspaces for retaining 10 coarse particles of the fruit during pouring of juice from the receptacle.

774,454 9/1934 France.

LOUIS O. MAASSEL, Primary Examiner.