Abstract: A muscle-back iron golf club head includes a blade-like upper mass, a muscle-like lower mass, a planar front surface, a top surface, a sole surface, a heel surface, a toe surface, and a rear surface having a first contour. A recess is in the rear surface, the recess having a first portion in the blade-like upper mass and a second portion in the muscle-like lower mass. An insert may be provided in the recess, and such insert may substantially fill the recess and may include a back surface having a second contour which is different from the first contour of the club head rear surface.

Abstract: An extractor tool for extracting invasive fluid from a floor covering defining a floor surface. The extractor tool comprises a frame assembly, an extraction head, and a drive roller. The frame assembly defines a support surface. The extraction head is mounted to the frame assembly and defines an extraction opening that engages the floor surface. The drive roller assembly is mounted to the frame assembly and also engages the floor surface. A user stands on the support surface between the extraction head and the drive roller assembly such that the user's weight is transferred to the floor surface through the extraction head and the driver roller assembly. The user operates the driver roller assembly to propel the extractor tool along the floor surface.

Abstract: A lightweight structural panel comprises a foam core member. Adhered to one face of the core member is a pigmented plastic cover sheet having substantially the same plan configuration as the core member. The plastic sheet contains a mix of additives, antioxidants, and pigment coatings which prevent it from cracking, splitting and getting hard. In addition, the cover sheet has substantially the same response to changes in temperature and humidity as the core member such that the panel retains its original shape despite changes in temperature and humidity. In another embodiment both faces of the core member include a plastic cover sheet adhered thereto.