Hive Modifications and Patents

Here follows a collection of hive modifications some which are patented and others which are not. The collection is not exhaustive and the inclusion of an invention does not infer the writers approval or agreement with the arguments presented. In fact, I could be persuaded to suggest that some claims are just figments of the inventors imagination.

Side Note: US/UK Patent protection lasts for 20 years.

Wind Shield to Improve Overwinter Beehive Survival. (2019). WiSys T180020 Patent US2019/0166806

A shelter (or porch) that can be added to the front of a hive with a curving upwards entrance. Can be removed during the summer. Their initial investigations suggested 90% reduction in 20mph wind and 50% improvement in winter survival when compared to regional averages.

Imrie, G. (1997). The Imirie Shim. https://www.michiganbees.org/wp-content/uploads/2014/05/Imirie-Shim_20110326.pdf

A simple 3/4″ (18mm) frame that can be inserted in between supers to provide additional access for foraging bees and provides additional ventilation.

Van De Kerkhof, H. (1980). Improvements in Bee Hives.

An updated top section for a (Langstroth) Bee Hive designed to improve ventilation due to condensation and provide a mechanism for feeding.

Musgrove, J. (1979) Traffic Regulating Hive Bottom Board. Patent 4,158,900 https://patents.google.com/patent/US4158900A/en

A board for the bottom of a hive that controls the travel of arriving and departing bees. A landing deck directs arriving bees into the honey comb frames whilst leaving bees drop down to the floor and exit under the landing deck.

Harwood, J.E. (1949) Beehive Exit Device. Patent US2,485,879

Designed to control the activities of honey bees such that they pick up fertile pollen at the beehive and carry it to blossoms in need of pollen service.

Brown, E.W. (1931) The Top Entrance Hive. Bee World, 12:9, 100-101, DOI: 10.1080/0005772X.1931.11093048

A horizontal top entrance should have a baffle-plate inwardly extending about six inches with vertical side
walls of the passage-way extending inwardly about three and a half inches, the latter being adjustable and (for hot weather) entirely removable.

Philpott, O.E. (1924) Beehive Attachment. Patent US1,518,102

A cage design for the introduction of queens into new colonies.

Nitch, F.L. & Meier, A. (1921) Entrance for Bee Hives. Patent US1,387,734

A entrance for Bee Hives particular intended for winter use. The entrance consists of outer and inner walls with slots that are offset. The offsetting protects the colony from cold weather and snow. The reduction of entrance size reduces robbing by making it easier to defend.

Pratt, E.L. (1907) Bottom Board for Bee Hives. Patent US874,863

Hough, W.S. (1873) Flanged Honey Board and Moth Trap. Patent US144,857

Moths are lured into an area where they can deposit larva and subsequently be removed by the beekeeper. There is a false entrance for robber bees created by light before ending trapped under the honey board where they die. The divider limits access to one or two frames