Abstract: A pump seal for sealing a gap between a housing and a rotating shaft including a first shell configured to engage the pump housing and to be stationary therewith. The first shell is provided with a first wearable sealing element. The pump seal further includes a second shell configured to engage the shaft and to rotate therewith, the second shell being provided with a second wearable sealing element. The first and second wearable sealing elements are configured to be in substantially sealing contact with each other during operation. The pump seal further includes a sintered retainer ring arranged between a portion of the first shell and the first wearable sealing element for substantially preventing rotation of the first wearable sealing element relative to the first shell.

Abstract: A pump seal for sealing a gap between a housing and a rotating shaft including a first shell configured to engage the pump housing and to be stationary therewith. The first shell is provided with a first wearable sealing element. The pump seal further includes a second shell configured to engage the shaft and to rotate therewith, the second shell being provided with a second wearable sealing element. The first and second wearable sealing elements are configured to be in substantially sealing contact with each other during operation. The pump seal further includes a sintered retainer ring arranged between a portion of the first shell and the first wearable sealing element for substantially preventing rotation of the first wearable sealing element relative to the first shell.

Abstract: Consumers and patrons of service establishments often carry a plurality of plastic cards with bar codes affixed to them. Devices and methods are provided that permit a user to carry one device rather than a plurality of cards, and for business to capitalize on the ease with which these devices may be used.