1. Apparatus for securing a closure in an aperture of a container using means adapted to engage the closure and the container to secure the closure, characterised in that the apparatus comprises means to provide for generation and release of a vacuum or partial vacuum between the securing means and the closure to move the securing means into a securing position.
2. Apparatus according to claim 1, the means to provide for generation and release of a vacuum or partial vacuum comprising airway means.
3. Apparatus according to claim 2, the airway means being adapted to cooperate with an aperture of the securing means to provide for generation and release of the vacuum or partial vacuum between the securing means and the closure.
4. Apparatus according to any preceding claim, including second means to provide for generation of a vacuum or partial vacuum, the said second means being adapted to provide for generation and release of a vacuum or partial vacuum between the securing means and the apparatus.
5. Apparatus according to claim 4, the second means to provide for generation and release of a vacuum or partial vacuum comprising airway means.
6. Apparatus according to claim 4 or claim 5, including seal means disposed to enable the vacuum or partial vacuum to be generated between the apparatus and the securing means.
7. Apparatus according to any preceding claim, comprising actuator means adapted to releasably engage the securing means for attachment to the container.
8. Apparatus according to claim 7, the actuator being attached to a base and movable relative thereto, and including a guide rod to substantially constrain the apparatus against tilting.
9. Apparatus according to claim 8, the actuator including a void space substantially sealed to atmosphere.
10. Apparatus according to claim 7 or claim 8, including third means to provide for generation and release of a vacuum or partial vacuum, to move the actuator relative to the base.
11. A kit of parts for securing a closure in an aperture of a container, characterised by apparatus according to any preceding claim, and securing means.
12. A kit of parts according to claim 11, including a suction device.
13. A method of releasably securing a closure in an aperture of a container using means adapted to engage the closure and the container to secure the closure, the method being characterised by the use of a vacuum or partial vacuum generated between the securing means and the closure to secure or release the securing means.
14. A method according to claim 13, including the use of an actuator to move the securing means towards and away from the container.
15. A method according to claim 14, including the use of a vacuum or partial vacuum to operate the actuator.
16. A method according to claim 14 or claim 15 including releasably attaching the securing means to the actuator by use of a vacuum or partial vacuum.
17. A method according to any of claims 13 to 16 including the use of seal means of the securing means andor of the container to assist in generation of the vacuum or partial vacuum between the securing means and the container.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A folding and reclining chair, comprising:
first left and right side poles pivotally attached to left and right rear feet; left and right risers pivotally attached to the left and right side poles;
left and right angle fittings rigidly attached to the left and right risers, with each angle fitting having a recline slot formed between first and second sidewalls of the angle fitting;
left and right back poles pivotally attached to the left and right angle fittings;
left and right position locks for locking the left and right back poles into one of two or more positions relative to the left and right angle fittings, respectively; and
a flexible material attached to or supported by the left and right back poles.
2. The chair of claim 1 with the left and right back poles extending through left and right rear sliding connectors, and with the left and right angle fittings between the left and right sliding connectors and the left and right feet, respectively.
3. The chair of claim 2 further comprising a strap between the left and right back poles.
4. The chair of claim 2 further including:
first and second rear diagonal poles pivotally attached to each other, and with each rear diagonal pole having a lower end pivotally attached to one of the rear feet, and having an upper end pivotally attached to one of the rear sliding connectors;
left and right front sliding connectors attached to a front end of the left and right first side poles; second left and right side poles pivotally attached to the left and right sliding connectors, pivotally attached to the first left and right side poles, and pivotally attached to left and right front feet; and first and second front poles pivotally attached to the left and right front feet, pivotally attached to each other, and with an upper end of each front pole extending through the left and right front sliding connectors, respectively; and
the flexible material having a seat section supported by the first and second front poles.
5. The chair of claim 1 with the left and right back poles substantially co-axial with the left and right risers, respectively, when the chair is in an upright position, and with the left and right back poles movable to form an acute angle with the left and right risers, when the chair is in a reclined position.
6. The chair of claim 1 with the recline slot of each angle fitting formed between the first and second sidewalls, a floor, and an upright wall of the angle fitting.
7. The chair of claim 6 with the recline slot extending over an angle ranging from 60 to 90 degrees.
8. The chair of claim 1 with the left and right position locks each comprising a lock button supported on a spring inside of the left and right back poles, respectively, with the lock button moveable into one of two or more openings in the second sidewall.
9. The chair of claim 1 wherein the left and right risers are pivotally attached to the left and right brackets at riser pivot joints, and wherein the left and right first side poles are pivotally attached to the left and right rear feet at first side pole pivot joints, and wherein the riser pivot joints and the first side pole pivot joints are spaced apart by 0.5 to 6 inches.
10. The chair of claim 1 further comprising left and right brackets rigidly attached to the left and right side poles, and with the left and right risers pivotally attached to the left and right brackets.
11. A reclinable folding chair, comprising:
a frame including:
first left and right side poles pivotally attached to left and right rear feet;
left and right risers pivotally attached to the left and right side poles;
left and right angle fittings rigidly attached to the left and right risers, with each angle fitting having a recline slot formed between first and second sidewalls of the angle fitting;
left and right back poles pivotally attached to the left and right angle fittings and extending through left and right rear sliding connectors;
first and second rear diagonal poles pivotally attached to each other, and with the first rear diagonal pole having a lower end pivotally attached to the left rear foot and having an upper end pivotally attached to the right rear sliding connector, and with the second rear diagonal pole having a lower end pivotally attached to the right rear foot and having an upper end pivotally attached to the left rear sliding connector;
left and right front sliding connectors attached to a front end of the left and right first side poles;
a second left side pole having an upper end pivotally attached to the left rear sliding connector and having a lower end pivotally attached to a front left foot, and with the second left side pole pivotally attached to the first left side pole;
a second right side pole having an upper end pivotally attached to the right rear sliding connector and having a lower end pivotally attached to a front right foot, and with second right side pole pivotally attached to the first right side pole;
a first front pole having a lower end pivotally attached to the right front foot, and having an upper end extending through a front right sliding connector;
a second front pole having a lower end pivotally attached to the left front foot, and having an upper end extending through a front left sliding connector, and with the first front pole pivotally attached to the second front pole; and
a flexible material having a seat section and a back section supported on the frame.
12. The chair of claim 11 wherein the frame is symmetrical about a front to back centerline.
13. The chair of claim 11 with the back section supported on the back poles.
14. The chair of claim 11 further comprising left and right locking mechanisms associated with the left and right angle fittings, for locking the left and right back poles into a selected position.
15. The chair of claim 11 with the flexible material having ring fittings slidably supported on the back poles.
16. The chair of claim 11 further comprising a strap between the left and right back poles extending through slots in the angle fittings.
17. A folding and reclining chair, comprising:
first left and right side poles pivotally attached to left and right rear feet; left and right risers pivotally attached to the left and right side poles;
left and right angle fittings rigidly attached to the left and right risers;
left and right back poles pivotally attached to the left and right angle fittings;
left and right position locks for locking the left and right back poles into one of two or more positions relative to the left and right angle fittings, respectively;
a flexible material attached to or supported by the left and right back poles;
with the left and right back poles extending through left and right rear sliding connectors, and with the left and right angle fittings between the left and right sliding connectors and the left and right feet, respectively; and
a strap between the left and right back poles.
18. The chair of claim 17 with each angle fitting having a recline slot formed between first and second sidewalls of the angle fitting.
19. A folding and reclining chair, comprising:
a first left side pole pivotally attached to a left rear foot;
a first right side pole pivotally attached to a right rear foot;
a left riser pivotally attached to the left side pole or to the left rear foot;
a right riser pivotally attached to the right side pole or to the right rear foot;
a left angle fitting pivotally attached to the left riser;
a right angle fitting pivotally attached to the right riser;
with each angle fitting having a recline slot formed between first and second sidewalls of the angle fitting;
a left back pole rigidly attached to the left angle fitting;
a right back pole rigidly attached to the right angle fitting;
left and right position locks for locking the left and right risers into one of two or more positions relative to the left and right angle fittings, respectively; and
a flexible material attached to or supported by the left and right back poles.
20. The chair of claim 19 with the left and right back poles extending through left and right rear sliding connectors, and with the left and right angle fittings between the left and right sliding connectors and the left and right feet, respectively.