Abstract: Methods and devices are provided for simultaneously amplifying a plurality of sample wells for a predetermined amount of amplification, detecting whether amplification has occurred in a first set of the wells, amplifying for an additional amount of amplification and detecting whether amplification has occurred in a second set of the wells. Methods are also provided for analyzing a target nucleic acid sequence using melt curves that were generated in a plurality of amplification cycles.

Abstract: A transporter for an infant comprising first and second means to receive an infant in the transporter, the means moveable between a first, closed orientation unsuitable for receiving an infant, and a second, open orientation for receiving an infant. The transporter further comprises first and second wheels disposed respectively at first and second ends of the transporter, the second wheel movable between a first operative position providing for a first wheel base and a second operative position providing for a second wheel base, wherein the first wheelbase is different from said second wheelbase, and wherein the second means is movable between the first and second orientations responsive to movement of the second wheel between the first and second operative positions.

Abstract: A transporter for an infant comprising first and second means to receive an infant in the transporter, the means moveable between a first, closed orientation unsuitable for receiving an infant, and a second, open orientation for receiving an infant. The transporter further comprises first and second wheels disposed respectively at first and second ends of the transporter, the second wheel movable between a first operative position providing for a first wheel base and a second operative position providing for a second wheel base, wherein the first wheelbase is different from said second wheelbase, and wherein the second means is movable between the first and second orientations responsive to movement of the second wheel between the first and second operative positions.

Abstract: A push chair which incorporates a shopping trolley has a wheeled front frame with front wheels (22) and rear wheels (23), a seat 11 for a child, and a support member (10) for an article-carrying container (14). The frame can be folded to reduce the separation between the front and rear wheels so that the front/rear dimension of the push chair is reduced. The seat (11) of the chair is folded up at the front and the handle (40) is folded down at the rear. An auxiliary handle (16) on the support member controls the push chair when it is folded.

Abstract: A towel-dispensing cabinet has a loop of towel web (1) available for a user, a substantial part (12) of the loop being removably contained within the cabinet. The length of exposed web (between C and D) can be increased by a user drawing web material from the concealed loop part (12) against the urging of a gravity-urged roller (9).

Abstract: A turf scarifier and raker includes a housing with an elongated upright handle and having suitably positioned wheels designed to permit traversing movements over turf while the operator is in a standing position. The housing has an electric motor positioned in essentially the same plane as a tine assembly driven by the electric motor. The tine assembly has a plurality of tines which extend through an opening at the bottom of the housing. The tines result from a plurality of torsion coil springs having radially extending active ends that are serially threaded on rods arcuately and radially located about a central axle of the tine assembly. The active ends come into contact with the turf when the device is operated. At the same time, the other ends of the springs are inhibited from turning torque, preferably by lying in abutment against the central axle.

Abstract: This invention relates to a pivotal closure for a container. The closure structure includes a collar defining an opening, and associated with the opening is a lid mounted for rotation about an axis generally coaxial with this opening. This lid is further mounted for pivoting about an axis normal to the axis of rotation between a closed position in which the lid closes the opening and an open position in which an aperture defined by the lid and/or the collar allows access through the opening. The rotation of the lid is governed by a cam mechanism operable by pivoting movement of the lid. The can mechanism is, generally, a saw-tooth cam surface associated with either the collar or the lid and a cam follower associated with either the collar or the lid, so that pivoting the lid from a closed position through an open position and back to a closed position causes the lid to rotate about the axis of the opening by an amount determined by the cam surface.